Agilent Technologies | N4970A | LIGHTWAVE CATALOG - Agilent Technologies

LIGHTWAVE CATALOG - Agilent Technologies
Bit Error Ratio and Waveform Analysis
Agilent Technologies Lightwave Catalog 2014
Table of Content
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Digital Photonic Test Division
Volume 3: Bit Error Ratio and Waveform Analysis
Table of Content
Applications: Optimizing Manufacturing Test Cost
Applications: Optical Receiver Stress Test
Applications: Testing Transceivers Used in Fibre Channel Networks
Applications: Passive Optical Network (PON) Test Solution
Applications: Communications Waveform Measurements
Bit Error Ratio Test Solutions
Serial BERT Selection Table
M8020A J-BERT High-Performance BERT
M8061A 32 Gb/s Multiplexer 2:1 with de-emphasis
N4960A Serial BERT 32 and 17 Gb/s
N4962A and N4963A Serial BERT 12.5G
N4965A Multi-Channel BERT 12.5G
N4967A 40Gb/s BERT System
N4980A Multi-Instrument BERT Software
N4970A PRBS Generator and N4984A Clock Divider Products
N4974A and N4975A PRBS Generators
N4903B J-BERT High-Performance Serial BERT
N4877A, N1070A CDR Solutions and N4876A 28.4 Gb/s Multiplexer 2:1
ParBERT 81250 Parallel Bit Error Ratio Tester
N5980A 3.125 Gb/s Manufacturing Serial BERT
N4906B-003 (3.6 Gb/s) & N4906B-012 (12.5 Gb/s) Serial BERT
N4917A Optical Receiver Stress Test Solution
86100D Wide-Bandwidth Oscilloscope
86108B Precision Waveform Analyzer
86100D Wide-Bandwidth Oscilloscope Selection Guide
Agilent Pulse Pattern Generators - Selection Guide
Product vs. Measurement Selection Table
J-BERT M8020A High-Performance BERT
Optimizing Manufacturing Test Cost
Common transceiver types and manufacturing flows
Manufacturers of optical transceivers are faced with increasing challenges
to their businesses, particularly how to reduce product cost. Pressures to
reduce cost as data rates rise means manufacturing engineering managers and their engineers must be more creative in how to reduce costs before their competitors do. Traditional methods of eliminating tests or trying
to make tests run faster may not be feasible, may not yield the intended
benefit or may provide results that don’t agree well with their customer’s
measurements. The use of parallel testing promises huge improvements,
but more innovation is needed. Read below, how Agilent helps to optimize
the manufacturing processes of optical components.
The number of communications standards and transceiver types has proliferated during the last decade creating more complexity for the typical
manufacturing test facility. Mass market and other high volume transceivers typically have fewer tests and less temperature cycling. More complex
transceivers at higher data rates have more extensive tuning, temperature
cycling and challenges to meet high desired yields.
The ultimate goal of Agilent’s approach is to provide a sufficiently
accurate answer, very quickly, which is enabled by these recently introduced capabilities:
• DCA with parallel characterization of multiple devices, or
characterization of parallel optics, Improved autoscale performance,
eye tuning, rapid eye, faster eye mask testing
• Multi-channel BERTs for characterizing multi-channel devices and
multi-channel standards (4 x 25 G)
• Great improvements in cost of test are achieved by testing multiple
transceivers in parallel, either several single channel transmitters at
once or several channels on a multi-channel transmitter
• Multi-port optical attenuator with up to four separate attenuators that
are settable in parallel and provide fast settling times, a significant
improvement in both multi-device and multi-lane testing
• Newly designed attenuation devices that ensure high modal fidelity in
multimode fiber based transceiver testing, a contribution to narrower
test margins and thus better yield
4 Gb
2 Gb
Final test
Re-work and
re-test for less
Typical manufacturing flow for simpler and less expensive devices.
Final test
Implementing these innovations in your production line can improve by 2X
to 10X the number of units tested per station per year, and result in a 2X
to 5X improvement in the cost-of-test per transmitter.
Typical manufacturing flow for more complex devices.
Characteristics for common optical communications standards
Fibre Channel to 4X
Gigabit Ethernet
Wireless CPRI
Passive optical network
Package types
Channel rates,
test flow
0.155 to 6.25
Figure 1
• Fibre channel to 16X
• 10 G and 40 G Ethernet
SFP+ and XFP
1 to 14
Figure 1 or Figure 2
• 10 Gb, 40 Gb and 100 Gb Ethernet
• 32G Fibre Channel
• SONET OC-192
10 to 29
4, 8, 10, 12
Figure 2
Optical Receiver Stress Test
The fundamental test for these network elements is the bit error ratio,
demonstrating reliable operation in digital data transmission systems and
networks. The basic principle is simple: the known transmitted bits are
compared with the received bits over a transmission link including the
device under test. The bit errors are counted and compared with the total
number of bits to give the bit error ratio (BER). The applied test data signal
can be degraded with defined stress parameters, like transmission line
loss, horizontal and vertical distortion to emulate worst-case operation
scenarios at which the device under test has to successfully demonstrate
error free data transmission. Obviously, this test is of fundamental importance for receiving network elements, due to the manifold impairments
occurring on optical transmission lines. Therefore, many all optical transmission standards define such stressed receiver sensitivity on the basis of
a BER measurement. The basic test methods and setups are usually very
similar. However, the test conditions, the stress parameters or methods
of stress generation vary from standard to standard, depending on the
application area, transmission medium, data rate or data protocol.
The basic setup is sketched in the block diagram and consists
of the following elemental building blocks:
• The frequency synthesizer: creates sinusoidally jittered clock, Periodic
Jitter (PJ)
• The clock output from the clock source will be modulated with the
sinusoidal jitter
• The electrical pattern generator creates the defined test pattern at the
required rate
• The electrical stress conditioning setup adds various kinds of signal
distortion onto the test pattern
• The E/O conditioning setup modifies the electrical stress signal
depending on the standard:
• The electrical-to-optical- converter converts the electrical
stressed test signal into the corresponding optical stressed signal
(10 GbE, 10 GFC)
• The tunable E/O source, optical multiplexer and modulated
test sources are used to emulate other lanes for higher speed
standards (40 GbE, 100 GbE)
• The optical attenuator emulates the transmission line loss and
sets the optical modulation amplitude to the required level
• The optical stressed signal is fed to the optical receiver under test
• The receiver’s data output signal is lead to the error detector, which
compares the input and output data test patterns, detects errors and
calculates the bit error ratio
What is optical stress?
Figure 3 illustrates an optical stressed signal which has to be applied to an
optical receiver. While such a signal is applied to the optical input, the bit
error ratio at the receiver’s output has to be below a certain level (typically
1e-12) to be compliant.
Jitter histogram
(at waveform average, eye-closure histograms
may not be at waist) (at time-center of eye)
Approximate OMA
(difference of
means of histograms)
Optical Modulation Amplitude, measured in [μW] (“average signal
Extinction Ratio, high-level to low-level, measured in [dB] or [%]
Unit Interval (one bit period)
Flavors of 10 Gb Ethernet standard for Long Reach (10 km), Short Reach
(300 m), Extended Reach (40 km)
VECP = 10 x log (OMA/AO)
Figure 3. Definition of the optical parameters
Vertical eye opening (“innermost eye opening at center of eye“) [dBm or
Vertical Eye Closure Penalty
Optical Receiver Stress Test
Stress conditioning setup:
Stress conditioning for 40 GBASE-LR4 and 100 GBASE-LR4, ER4
• Sinusoidal amplitude interferer 1: Causes Sinusoidal Jitter (SJ) in
conjunction with limiter
• Gaussian noise generator: Causes Random Jitter (RJ) in conjunction
with limiter
• Limiter: Restores signal edges (fast rise and fall times)
• Sinusoidal amplitude interferer 2: Causes additional Vertical Eye
Closure (VECP) and Sinusoidial Jitter (SJ)
Stress conditioning varies depending on the standard and the speed class
of the component. But the principle of stress conditioning remains the
• Firstly, this block adds different types of jitter, like random jitter,
periodic jitter or sinusoidal jitter, to generate defined horizontal
closure of the test pattern’s eye shape
• Secondly, this block exposes different types of amplitude distortions,
like sinusoidal amplitude interference and low-pass filtering, to
generate defined vertical closure of the eye-shape
• Low-pass filter: Creates ISI-induced Vertical Eye Closure (VECP)
Stress conditioning for 10 GbE and 10 GFC
• 4th Order Bessel Thomson Filter: Creates ISI-induced Vertical Eye
Closure (VECP)
• Sinusoidal Amplitude Interferer: Causes Sinusoidal Jitter (SJ) in
conjunction with limiter
Stress conditioning for 16 GFC
• Coaxial cable: Causes Deterministic Jitter (DJ) in conjunction with
• Limiter: Restores signal edges (fast rise and fall times)
• 4th Order Bessel Thomson Filter: Creates ISI-induced Vertical Eye
Closure (VECP)
Optical Receiver Stress Test
Reference transmitter conditioning setup
Signal characterization measurement
This setup varies depending on the speed class and number of lanes. For
single lane setups it is just an E/O converter and an optical attenuator.
For multi-lane applications it gets more complicated.
Test signal calibration and verification
WDM conformance testing 40 Gbase, 100 Gbase -LR4, -ER4
Reference receiver:
Optical to electrical converter with 4th Order Bessel Thomson response
and reference frequency ft of:
ƒt = 7.5 GHz for 8 GFC
ƒt = 11.0 GHz for 16 GFC
ƒt = 7.5 GHz for 40 Gbase-LR4
Use clean, un-jittered clock to verify stressed signal.
Optical receiver devices, especially those for data rates in the higher
Gbps-range, are commonly exposed to extensive stressed receiver
sensitivity tests during their design and qualification phase to verify their
performance and to determine their margin against the requirements. The
BER is measured under standard compliant stressed conditions at various
optical modulation amplitudes (OMA) to BER down to 10-12 or lower. In
the manufacturing phase, BER tests are performed at a few different OMA
points down to only BER of 10-9 to reduce test time and cost. Applying
this reduced test scheme in series implies that the device manufacturer
knows very well the device margins. This leads to the requirements for a
test solution with high accuracy and reproducibility regarding the stressed
test signal generation. For the optical part of the stressed signal generation, this means maintaining high signal fidelity. This demand may lead
especially for multimode fiber devices to some interesting test challenges.
This catalog covers the test equipment needed to perform these tests. Get
more detail about Agilent’s N4917A Optical Receiver Stress Test Solution
on page 30.
Tunable E/O converter for selecting stressed lane under test:
Modulated with stressed test signal.
OMA set to „stressed receiver sensitivity spec“.
1) Wavelength (l) tuned to corresponding worst-case sensitivity of RXuT
2) Or fixed wavelength (l) in specified range of RxuT
Modulated test sources for other lanes:
Modulated simultaneously with valid standard pattern.
3) OMA set to highest „difference in receive power spec“.
Wavelength (l) tuned to corresponding worst-case crosstalk to lane
under test.
4) OMA set to highest „difference in receive power spec“ plus
increment of loss variation of lane under test, plus increment of
isolation variation to lane under test. Fixed wavelength (l) in
specified range of RXuT
Testing Transceivers Used in Fibre Channel Networks
Figure 1. For 16x Fibre Channel (16 GFC) for transceiver testing.
There are three topologies in this type of network including point-to-point,
arbitrated loop, and switched fabric. The connections between devices
use transceivers for optimization. For example, in a switched fabric
topology, SFP+ (8 GFC and 16 GFC), XFP (10 Gb/s) and SFP (≤ 4 Gb/s)
are types of transceivers that connect between the switched fabric and
various devices such as storage and computing equipment. Typical patterns used to test transceiver devices include PRBS series, JSPAT, and K28
series which are part of the preloaded library of patterns in the N4960A
32 G BERT.
pattern generator
error detector
Figure 2. Test setup for 16 GFC.
For 16 GFC applications (14.025 Gb/s), the N4960A can perform BER
measurements and can provide a stressed pattern generator signal for
receiver tests. 16 GFC devices must be accurately characterized to strict
tolerances. The N4960A, used with the N4980A multi-instrument BERT
software, can also provide jitter tolerance tests for accurate characterization.
Divided output
Delayed output
Dly clk in
2.5 to 16 GHz
High deviation modulator
Ext jitter in
Ext clock in
2.5 to 16 GHz
2.5 to 16 GHz
10 MHz
10 MHz
ref out
Low deviation modulator
Figure 3. Block diagram (32 Gb/s system).
(N4960A-CJ1 only)
Figure 1 shows a typical hardware setup followed by a procedure showing settings for performing a BER test.
5 to 32 GHz
Main (jittered) output
10 MHz
Ref in
A basic configuration using the 17 Gb/s BERT system is shown above.
N4951A-P17 and N4952A-E17 can be loaded with common stress patterns for 16 GFC. You can also custom design your own patterns up to
8 Mb in length and upload them into the N4951A-P17 and N4952A-E17.
RJ filter loop
5 to 32 GHz
Passive Optical Network (PON) Test Solution
This example from the optical communication domain is about passive
optical networks (PON) based on time division multiple access (TDMA) as
used by GPON and BPON.
What is PON?
A passive optical network (PON) – specified by the full service
access network (FSAN) vendor consortium – is an access technology
for FTTx networks using small inexpensive, passive splitters, instead
of optical repeaters. In downstream direction, the signal from an
optical line terminal (OLT) is split and sent to optical network units
(ONUs). The upstream direction is more challenging for the receiver
performance testing, with signals sent from the ONUs to the OLT
using TDMA and different power levels due to different distances.
The most critical sub-module in this system is the receiver RX of the
optical line terminal (OLT) in the central office which has to deal with the
upstream signal bursts arriving from the optical network units (ONU) as
depicted in figure 1.
Subscriber ONU
Figure 2. PON requires exact timed data bursts in an upstream test.
The SW controlling ParBERT and the other instruments can be written in
a language of your choice. It can run on the same PC that the ParBERT
SW resides on. Using e.g. visual Basic or C allows utilization of the Plug &
Play libraries provided with ParBERT (and many other instruments), which
simplifies programming.
Central office LT
Guard time
Figure 1. TDMA bursts travelling upstream on a passive optical network.
The spacing between them is very short and the amplitude may be very
different, such that the RX in the OLT must settle to the appropriate threshold and synchronize its internal PLL in a very short time.
Figure 3. ParBERT based test set-up for characterization of OLTv.
Benefits of Agilent’s ParBERT
A test set-up consisting of ParBERT 81250, Agilent’s Lightwave Measurement System (LMS) 8163B/8164B and a Digital Communication Analyzer
(DCA) 81600D emulating the important portions of a PON is depicted in
figure 3. ParBERT’s exact timing capability for the two data burst and the
related laser control signals is essential for standard compliant testing and
characterization of the OLT’s RX. The pattern sequencer allows the set-up
and generation of the burst-packages with desired content.
Test accurately using:
• Exactly timed signals for data bursts and control signals
• Adjustable signal delays
• Controllable preamble states
• Superior signal quality
Test flexibly using:
• A modular multi-lane generator and analyzer platform
• Several generator/analyzer with speed classes up to 13.5 Gb/s
Communications Waveform Measurements
For eye mask testing industry defined masks are compared to the
transmitter eye-diagram. Pass/Fail is quickly determined. Mask margins
can be automatically determined. Eye mask test to industry defined hit
ratios (a relatively new concept defined as the allowed number of hits
compared to the total number of waveform samples) is also automatically
performed. Eye mask tests are almost always performed using a reference
receiver. A reference receiver defines the entire measurement system to
have a specific low pass frequency response, the most common being a
fourth-order Bessel low-pass response with the –3 dB frequency at 75%
of the data rate.
Application overview
For any high-speed communications signal, the channel and basic signal
characteristics must be assessed for compliance with standards and
interoperability with other devices in the system path. Digital Communications Analyzers (DCA’s) based on wide bandwidth sampling oscilloscopes
are recognized as the industry standards for accurate analysis of optical
waveforms in R&D, device validation and volume transceiver manufacturing. In addition to basic eye-diagram and pulse waveform characterization, DCA’s perform advanced jitter analysis and channel impedance
For example, a 10 Gb/s reference receiver would have a 7.5 GHz bandwidth. A reference receiver allows the waveform to be viewed closer to
what a receiver in an actual communications system would see.
Transmitter compliance testing and eye-diagram analysis
Viewing the eye-diagram is the most common method to characterize the
quality of a high-speed digital transmitter signal. Industry standards such
as SONET, SDH, Fibre Channel and Ethernet rely on eye-diagram analysis
to confirm transmitter specifications. The eye is examined for mask
margin, amplitude, extinction ratio and overall quality. Tests are commonly
performed using a well defined reference receiver to provide consistent
results both in manufacturing test, incoming inspection, and system level
applications. Standards based reference receivers and test procedures are
built into the DCA’s to provide compliance test capability.
In these standard tests automatic histogram analysis determines signal
levels to derive key waveform parameters including but not limited to:
• Extinction ratio: How efficiently laser power is converted to
information power
• Optical modulation amplitude (OMA): A measure of modulation
• Eye height and width: An indication of how open the eye is
• One and zero levels: The logic levels of the eye
• Signal to noise ratio: Signal strength compared to noise
• Duty cycle distortion and crossing percentage: A measure of eye
• Basic peak-to-peak and RMS jitter: A measure of the timing stability
of the signal
Eye mask tests are performed with a reference receiver based test system
Parameters are automatically derived from the eye-diagram
Communications Waveform Measurements
The “equivalent time” sampling oscilloscope, with configurations having
over 80 GHz of bandwidth and extremely low levels of intrinsic jitter, is
the most accurate tool available for jitter measurements at high data
Waveform measurements
Not all waveform measurements of optical signals are performed with a
reference receiver. The filtering can be switched out to provide a wider
bandwidth measurement system. The unfiltered properties of the waveform are accurately observed. The transmitter output may be viewed as an
unfiltered eye, or as a pulse train depending on how the DCA is triggered.
A DCA can be placed in ‘pattern lock’ mode to view the individual bits of a
digital communications signal allowing a simple analysis of the waveform
quality including parameters such as rise and fall times, pulsewidth and
overshoot. In ‘pattern lock’ mode a complete single-valued waveform record, up to 2^23 bits long, can be recorded for off-line analysis. Advanced
signal processing is available with the 86100D (see pages 31 to 36).
In many communications systems and standards, specifying jitter involves
determining how much jitter can be on transmitted signals. Jitter is
analyzed from the approach that for a system to operate with very low
BER’s (one error per trillion bits being common), it must be characterized
accurately at corresponding levels of precision. This is facilitated through
separating the underlying mechanisms of jitter into classes that represent
root causes. Specifically, jitter is broken apart into its random and
deterministic components. The deterministic elements are further broken
down into a variety of subclasses. With the constituent elements of jitter
identified and quantified, the impact of jitter on BER is more clearly
understood which then leads to straightforward system budget allocations
and subsequent device/component specifications. Breaking jitter into its
constituent elements allows a precision determination of the total jitter on
a signal, even to extremely low probabilities.
Individual bits can be observed in a ‘pattern lock’ display
Typically an external timing reference is used to synchronize the oscilloscope to the test signal. In cases where a trigger signal is not available or
when required for a standards compliance measurement, clock recovery
modules or clock recovery instruments are available to derive a timing
reference directly from the waveform to be measured. Clock recovery
not only provides a convenient method to synchronize the oscilloscope, it
can also control the amount of jitter displayed. Clock recovery effectively
creates a high-pass effect in the jitter being observed on the oscilloscope.
The clock recovery system loop bandwidth defines the filtering range (see
Agilent Product Note 86100-5).
Advanced analysis identifies sources of jitter
Time domain reflectometry and transmission
Most optical devices have high-speed electrical input and output
paths. High signal integrity is achieved with well designed signal paths.
DCA’s can also be configured as time domain reflectometers (TDR) to
easily determine the transmission and reflection properties of electrical
channels. This information can be presented as a function of time or
frequency as S-parameters. Most new circuit designs are differential
to improve crosstalk and interference performance. Circuits need to be
characterized in single-ended, differential signal and common signal
Jitter analysis
Every high-speed communications design faces the issue of jitter. When
data are jittered from their expected positions in time, receiver circuits
can make mistakes in trying to interpret logic levels and BER is degraded.
As data rates increase, jitter problems tend to be magnified. For example,
the bit period of a 10 Gb/s signal is only 100 picoseconds. Signal
impairments such as attenuation, dispersion and noise can cause the
few picoseconds of timing instability to create eye closure that can mean
the difference between achieving or failing to reach BER objectives.
The problem is further aggravated by the difficulty presented in making
accurate measurements of jitter. A variety of measurement approaches
exist but there has been frustration within the industry around the
complexity of setting up a measurement, getting repeatable results and
the inconsistency of different techniques.
The TDR module sends a fast edge along the transmission line, then
analyzes the reflected signal and displays voltage or impedance versus
distance. This information can also be converted into the frequency
domain to display return loss, VSWR or reflection coefficient versus
frequency. Any selected portion of the trace can also be assessed for the
excess inductance or capacitance, allowing the designer to estimate the
amount of required compensation in that region.
Bit Error Ratio Test Solutions
Agilent offers the broadest portfolio with four BERT families that address a
variety of speed classes, usability concepts, and flexibility as well as application specific stimulus and analysis tools. All BERTs provide cost-effective
and efficient in-depth insight into critical measurement tasks for today’s
and next generation devices with gigabit interfaces.
Bit error ratio test solutions
Agilent offers the broadest choice of BERTs — covering affordable manufacturing test and high-performance characterization and compliance
testing up to 32 Gb/s.
Agilent’s bit error ratio test solutions allow the most accurate and efficient
design verification, characterization, compliance and manufacturing test of
high-speed communication ports for today’s ASICs, components, modules
and line-cards in the semiconductor, computer, mobile computing, storage
and communication industry.
Device under Test
BERTs are used to test and characterize many high-speed digital
QPI, FB-DIMM, PCI Express®, SATA,/SAS USB, Thunderbolt, DisplayPort, HDMI, MHL, MIPI, UHS-II, Fibre Channel, XAUI/10 Gb Ethernet,
CAUI/100 GbE, CEI and other backplanes, XFI/XFP/SFP+/QSPF/CFP
modules, OTN, and PON-OLTs, Serdes, DAC, ADC, etc.
Recommended Agilent BERT
For R&D characterization, compliance
For manufacturing
High-speed serial
receiver in computer
buses and backplanes
< 16 G
QPI, PCI Express, SATA,
Data rates < 10-16 Gb/s,
calibrated jitter, SSC, ISI
and S.I., clock recovery,
pattern sequencing
J-BERT M8020A*,
J-BERT N4903B,
ParBERT 81250**
Backplanes, cables,
SERDES, AOC, repeaters
> 10 G
– 28 G
100 Gbase-KR4/-CR4,
10 Gbase-KR
Data rates > 10 Gb/s,
de-emphasis, x-talk,
J-BERT M8020A, M8061A,
N4960A, N4965A,
J-BERT N4903B, N4877A
Optical transceivers and
0.6 to 44 Gb/s
> 25 G
40 G/100 GbE,
32 G FC, CFP 2/4
Data rates > 16 Gb/s ,
clean signals, PRBS
N4960A, N4967A
J-BERT M8020A/N4903B
+ M8061A/N4877A
N4960A, N4967A
10 G
10 G/40 GbE, PON,
OTN, 8 G/16 G FC,
Data rates 3 to 15 Gb/s,
PRBS, optical stress &
sensitivity, framed bursts
J-BERT M8020A*,
J-BERT N4903B, N4917A
1 GbE, XFP, PON,
1 G/2 G/4 G FC
Data rates < 3.5 Gb/s,
fast bit synchronization,
PRBS or framed bursts
ParBERT 3.3 G
* Up to 4 lanes
** For multi-lane
Serial BERT Selection Table
Agilent offers the widest choice of serial BERT products for accurate and efficient characterization, compliance and manufacturing test for digital
interfaces in computer, video, datacom and telecom applications operating up to 40 Gb/s.
The Agilent M8000 Series is a highly integrated BER test solution for physical layer characterization, validation, and compliance testing. With support for
a wide range of data rates and standards, the M8000 Series provides accurate, reliable results that accelerate your insight into the performance margins
of high-speed digital devices.
The high-performance J-BERT M8020A is the first product of the M8000 Series.
Performance BERTs for characterization and compliance verification in R&D and validation labs up to 40 Gb/s:
Manufacturing Serial BERTs for minimizing test cost for optical
transceivers up to 12.5 Gb/s:
The J-BERT M8020A High-performance BERT enables fast
and accurate receiver characterization of single- and multi-lane
devices operating up to 16 or 32 Gb/s.
The N5980A Manufacturing Serial BERT up to 3.125 Gb/s enables
transceiver test at up to one-sixth of the test cost and the front panel size
of comparable BERT solutions.
J-BERT N4903B High-performance Serial BERT – for next generation of forwarded and embedded clock designs such as QPI, PCIeTM,
DisplayPort, SATA, USB, TBS, UHS-II, FB-DIMM, Fibre Channel, 10 GbE.
The N4962A Serial BERT 12.5 Gb/s, an economic BERT for transceiver manufacturing test.
In combination with 86100D Infiniium DCA-X and Infiniium 90000-X
Series Oscilloscopes these BERTs are the most comprehensive and
accurate jitter tolerance and analysis solution available.
The N4906B Serial BERT provides excellent signal performance but
without jitter injection capabilities for budget sensitive communication
device testing. The N4906B Serial BERT is offered in a 3.6 Gb/s and a
12.5 Gb/s version.
The N4960A Serial BERT 32 and 17 Gb/s, for testing transceivers in
manufacturing and R&D.
The N4967A Serial BERT System 40 Gb/s, for characterizing optical
transceiver devices in R&D.
The N4965A Multi-Channel BERT 12.5 Gb/s, for characterizing
multiple lanes.
Agilent J-BERT M8020A High-Performance BERT
• Data rates up to 8.5/ 16 Gb/s for pattern generator and error
detector. Extension to 32 Gb/s possible with M8061A multiplexer
• 1 to 4 16 Gb/s BERT channels in a 5-slot AXIe chassis
• Integrated and calibrated jitter injections: RJ, PJ1, PJ2, SJ, BUJ,
clk/2, SSC, sinusoidal interference
• 8- tap de-emphasis (positive and negative) up to 20 dB
• Interactive link training for PCI Express
• Built-in clock data recovery and equalization
• In situ calibration
• Modules and options are upgradeable
Pattern generator
• Operating range: 150 MHz to 8.5 GHz (option G08 or C08), 150 MHz
to 16.2 GHz (option G16 or C16). For extension to 32.4 Gb/s: use
M8061A in addition.
• Data outputs: 1 or 4 for 16 Gb/s (option 0G2 for second channel per
M8041/51A module)
• Output amplitude: 50 mV to 1.2 Vpp (single ended)
• Transition time: 15 to 20 ps typical (20-80%)
• De-emphasis: 8 taps positive/ negative (option 0G4)
• Intrinsic jitter: 8 ps pp typical
• Connectors: 3.5 mm (f)
• Supplementary outputs: trigger out, clock out
• PRBS: 2 n-1, n = 7,10, 11 15, 23, 23p, 31
• Memory: 4 Gbit per channel
• Sequencer: 3 counted loop levels, 1 infinite loop
• Interactive link training for PCIe
Jitter tolerance test
• Calibrated jitter sources: multi-UI low-frequency jitter up to 5 MHz,
high-frequency jitter up to 1 UI @ 500 MHz (RJ, PJ1,PJ2, BUJ, sRJ),
clk/2 ±20 ps
• SSC:±5000ppm
• ISI:eightISItraces(seeM8048A)
• Interference:built-incommon-modeupto400mVanddifferentialmode up to 30% of output amplitude
• Automatedjittertolerancetest
J-BERT M8020A high-performance BERT with 4 channels
The high-performance Agilent J-BERT M8020A enables
fast, accurate receiver characterization of single- and
multi-lane devices running up to 16 or 32 Gb/s.
With today’s highest level of integration, the M8020A streamlines
your test setup. In addition, automated in situ calibration of signal
conditions ensures accurate and repeatable measurements. And, through
interactive link training, it can behave like your DUT’s link partner. All
in all, the J-BERT M8020A will accelerate insight into your design.
• Datainputs;1to4(option0A2forsecondchannelperM8041/51A
• Clockrecovery:builtin,adjustableloopbandwidthupto20MHz
• Sensitivity:50mV
• CTLE:yes
• Connectors:3.5mm(f)
Target applications
R&D and test engineers who characterize, verify compliance of chips,
devices, boards and systems with serial I/O ports up to 16 Gb/s
and 32 Gb/s. The M8020A can be used to test popular serial bus
standards, such as: PCI Express®, USB, MIPI M-PHY, SATA/SAS,
DisplayPort, SD UHS-II, Fibre Channel, front-side and memory buses,
backplanes, repeaters, active optical cables, Thunderbolt, 10 GbE,
100GbE (optical and electrical), SFP+, CFP2/4 transceivers, CEI.
J-BERT in 5 –slot AXIe chassis w/ emb. controller
J-BERT in 5 –slot AXIe chassis
16 Gb/s BERT 2 ch with clock, 3-slot AXIe module
16 Gb/s BERT 2 ch, 2-slot AXIe module
32 Gb/s Multiplexer 2:1 with de-emphasis
System software for M8000 Series
For operating range 32 Gb/s: see M8061A
For operation up to 16 Gb/s:
M8020A BU2
* available options for M8041A:
8.5/16Gb/s, generator-only, 2nd channel generator/analyzer,
de-emphasis, jitter sources, interference sources, reference
clock multiplier, SER/FER analysis, link training, CTLE
Agilent M8061A 32 Gb/s Multiplexer 2:1 with De-Emphasis
• Expands data rate of pattern generator of J-BERT M8020A
up to 32.4 Gb/s and J-BERT N4903B up to 28.4 Gb/s
• Adjustable positive and negative de-emphasis
for up to 8 taps, optional
• Internal superposition of interference for
common-mode and differential mode
• Transparent to jitter generated by J-BERT M8020A or N4903B
• Clock/2 jitter can be added
• Electrical idle
• Control from M8000 Series software as well as
from J-BERT N4903B user interface via USB
Target applications
R&D and test engineers who characterize, verify compliance
of chips, devices, boards and systems with serial I/O ports
up 32 Gb/s. Typical receiver test applications include:
• Optical transceivers such as 100GBASE-LR4, -SR4 and
-ER4, 32G Fibre Channel
• SERDESandchip-to-chipinterfacessuchas
• Backplanes,cables,andrepeatersuchas100GBASE-KR4,
CR4, Infiniband EDR and proprietary active optical cables and
• Operatingrangeofdataoutputs:300Mb/sto
28.4 Gb/s (with N4903B), or 32.4 Gb/s (with M8020A).
• Outputamplitude:50mVto1.2Vpp(singleended)
• De-emphasis:4taps(option004),extendedto8taps(option008).
Positive/ negative, 20 dB max.
• Transitiontime:14pstypical(20%-80%)for>25Gb/s
• Intrinsicjitter:6pspptypical
• TransparenttojitterfromN4903BandM8020A
• Auto-alignmentofclock/dataskew
• Clk/2jitter±20ps
• InternalsuperpositionofCMI,DMI
• Electricalidle
• Outputconnectors:2.4mm(f)
The M8061A multiplexer in a 32 Gb/s BERT setup with J-BERT M8020A.
The M8061A multiplexer can be used to extend the data rate of J-BERT
N4903B to 28.4 Gb/s.
R&D and test engineers who need to characterize serial interfaces of up to
32 Gb/s can use the M8061A 2:1 Multiplexer with optional de-emphasis
to extend the rate of J-BERT M8020A as well as J-BERT N4903B
pattern generator. For the most accurate receiver characterization
results, the M8061A provides four calibrated de-emphasis taps,
which can be extended to eight taps, built-in superposition of level
interference and clock/2 jitter injection. The M8061A is a 2-slot
AXIe module that can be controlled via USB from the M8000 Series
software as well as from the J-BERT N4903B user interface.
28/32Gb/s Multiplexer 2:1 module, 2-slot AXIe
De-emphasis, 4 taps
De-emphasis, extension to 8 taps
Integrated in 2-slot AXIe chassis with USB
Matched cable kit for connecting with N4903B
Recommended in addition:
N4877A Clock data recovery with de-multiplexer
Agilent N4960A Serial BERT 32 and 17 Gb/s
Fast, compact, and affordable BER testing
Affordability without compromise
The N4951A/B pattern generator and N4952A error detector remote
heads are available in two data rate ranges covering either 4 to 17 Gb/s
5 to 32 Gb/s with no gaps or missing data rates. They generate and test
full rate patterns directly without the need for external multiplexers and
delay matching often used in other modular BERT systems.
Testing 16x Fibre Channel (16GFC) transceivers, Infiniband FDR,
Infiniband EDR, 100 G Ethernet etc, requires equipment capable of
operating up to at least 25 Gb/s, with accurate characterization to strict
tolerances. Until now, these systems have been extremely expensive. This
often results in multiple designers needing to share the one serial BERT in
the lab, delaying their characterization and development schedule.
The signal fidelity in the eye is outstanding, owing to the use of customdesigned and built output amplifiers. Output parameters of amplitude,
offset, and termination voltage are user settable.
The Agilent Technologies N4960A serial BERT 32 and 17 Gb/s is an
affordable alternative for R&D working at data rates up to 32 Gb/s.
The solution is compact, allowing it to be easily transported throughout
the lab and manufacturing. But with its low price, a fraction of competing
stressed BERTs, you can afford to put one on each bench.
Figure 1: 16 x Fibre Channel (16 GFC) transceiver testing
Figure 2: Typical eye at 14 Gb/s
Compact architecture
Accurate, repeatable jitter tolerance
The N4960A serial BERT controller is a platform that forms the basis of
the stressed serial BERT. The N4960A serial BERT controller adds the
precision timing and control required for the remote pattern generator and
error detector heads.
The N4960A serial BERT controller contains an accurately calibrated
sinusoidal jitter source capable of high deviation at low frequencies, and
lower deviation at frequencies up through 200 MHz. A second sinusoidal
jitter source, plus random jitter source and spread spectrum clocking can
be added with option -CJ1.
The concept of remote heads, first introduced in the N4965A multichannel BERT, puts the pattern generation and error detection near the
device under test, eliminating long cables which degrade the signal. This
is especially important at higher data rates.
Integrated analysis software
Support for both models of the N4960A is included in the N4980A
multi-instrument BERT software. The software provides an intuitive user
interface. It also provides single or multi-channel BER measurement
capability with an unlimited number of channels. Setup is so easy that
you’ll be testing in seconds.
The optional JTOL measurement package in the N4980A multi-instrument
BERT software (Signal Integrity Studio) performs all the set-up and control
for single or multi-lane JTOL, and with an intuitive “point and click”
template editor.
Figure 3: N4980A JTOL measurement window
Agilent N4960A Serial BERT 32 and 17 Gb/s
N4960A Controller Specifications
Standalone clock source and/or Serial BERT controller
Clock output configuration:
Jitter (stressed), Delay, and Divided outputs available. Clock generator Jitter and Delay outputs are shared with
Pattern Generator (PG) and Error Detector (ED) heads respectively. The PG/ED data rate is double the frequency
of the clock outputs.
Frequency range
1.5 to 16 GHz (1.5 to 8.5 GHz when N4951A-P17, N4951B-H17/D17 or N4952A-E17 is attached)
Jitter (stressed), Delay, and Divided
Output configuration (all outputs)
Clock output amplitude range
300 mV to 1.7 V pp, single ended
Delayed clock delay range
0 to ±1,000 UI
Divided clock divide ratio
÷ 1, 2, 3,…, 99,999,999 integer divider
Jitter clock injection
- Sinusoidal
SJ1, SJ2 1 – 200 MHz, up to 1UI
- Random RJ
Up to 75 mUI
- Periodic PJ
1 to 17 MHz, up to 100 UI (to 62.5 kHz)
SJ2, RJ requires Option –CJ1. The amplitude of any stress appearing on the front panel jitter clock output will be 1/2 of the value appearing in the N4951A/B pattern
generator head. Changing stress amplitudes on the front panel jitter clock output will also change the level appearing on the pattern generator output.
Spread spectrum clock (Option -CJ1) 1 Hz to 50 kHz, 0 to 1.0 %, Triangle, down spread, center spread, or up spread.
Agilent N4951A
Agilent N4952A
Agilent N4960A Serial BERT 32 and 17 Gb/s
Pattern generator head specifications
Data rate range
4 to 17 Gb/s (Options P17/H17/D17)
5 to 32 Gb/s (Options P32/H32/D32)
Pattern selection
PRBS 2n – 1, n = 7, 9, 10, 11, 15, 23, 29, 31, 33, 35, 39, 41, 45, 47, 49, 51
Clock ÷ 2, ÷ 4, ÷ 8, ..., ÷ 64
User 1 bit to 8 Mb programmable using N4980A Multi-instrument Software
Data output configuration
Differential. May be operated single end with unused output terminated into 50 Ω.
AC Coupled with internal bias tee
Data output amplitude
adjustable up to 1V pp single ended (option P17/32), 1.5V (option D17/D32), 3V (option H17/H32)
Rise time (20% to 80%)
16 ps typical (Options P17/P32/ D17/ D32), 12 ps typical (Options H17/H32)
Jitter injection
Option D17/D32 has integrated 5-tap de-emphasis
Sinusoidal SJ1, SJ2
Random RJ
Periodic PJ
1 to 200 MHz, up to 1UI
Up to 50 mUI
1 to 17 MHz, up to 100UI (to 62.5 kHz)
SJ2, RJ requires N4960A controller with Option –CJ1
Error detector head specifications
Data rate range
4 to 17 Gb/s (Option E17)
5 to 32 Gb/s (Option E32)
Pattern selection
2n – 1, n = 7, 9, 10, 11, 15, 23, 29, 31, 33, 35, 39, 41, 45, 47, 49, 51
÷ 2, ÷ 4, ÷ 8, ..., ÷ 64
1 bit to 8 Mb programmable using N4980A Multi-instrument software
Data output configuration
Differential. May be operated single end with unused output terminated into 50 Ω.
AC coupled with internal bias tee
Data input range
100 mV to 1 V (p-p) single ended
Data delay range
± 2000 UI
Instantaneous and accumulated BER, Error count, Errored 1’s and 0’s, Data loss, Sync loss. Multi-channel BER,
bathtub scan, jitter tolerance testing (with N4980A software)
N4960A controller options
Standard jitter injection (single tone sinusoidal)
Expanded jitter injection (two tone sinusoidal, random and SSC)
Remote head options:
• N4951A-P17 pattern generator 17 Gb/s
• N4951A-P32 pattern generator 32 Gb/s
• N4951B-H17 pattern generator high amplitude 17 Gb/s
• N4951B-H32 pattern generator high amplitude 32 Gb/s
• N4951B-D17 pattern generator with 5-tap de-emphasis 17 Gb/s
• N4951B-D32 pattern generator with 5-tap de-emphasis 32 Gb/s
• N4952A-E17 error detector 17 Gb/s
• N4952A-E32 error detector 32 Gb/s
Agilent N4962A and N4963A Serial BERT 12.5G
• Optical transceiver production test up to 10 Gb/s
• Communication component incoming inspection
• General device characterization up to 12.5 Gb/s
N4962A Serial BERT features
• Internal clock for 9.85 to 11.35 Gb/s operation
• 0.5 to 12.5 Gb/s operation with external clock
• Low-cost 10G production test solution
N4963A clock synthesizer features
• 0.5 to 13.5 GHz operation
• Jitter injection option
• 6 pairs of differential clock outputs
The Agilent Technologies N4962A Serial BERT 12.5 Gb/s is a small
size, high-performance 0.5 to 12.5 Gb/s pseudo-random bit sequence
generator and bit error rate tester designed for automated production-line
testing, manufacturing and R&D lab use. The internal synthesizer offers
performance from 9.85 to 11.35 Gb/s. When used in conjunction with an
external clock (e.g., N4963A clock synthesizer 13.5 GHz), operation from
0.5 to 12.5 Gb/s is possible. The BERT and clock synthesizer’s compact
size and simple user interface making them ideal for use on a production
test bench.
Specifications Agilent N4962A
Data rate range
0.5 to 12.5 Gb/s with external clock
9.85 to11.35 Gb/s with internal clock
PRBS patterns
2n – 1 , n=7, 10, 15, 23, 31
Data output amplitude range
300 to 1800 mVpp (single-ended)
Data output jitter
1.1 ps rms typ at 10 Gb/s
Data output rise/fall time (20 % to 80 %)
18 ps typ
Data input voltage range
0.1 to 2 Vpp (single ended)
Data input phase adjust
0 to 358 °
Data input/output configuration
Differential. AC coupled. May be operated single end without unused inputs/
outputs terminated into 50 Ω.
Specifications Agilent N4963A
Frequency range
0.5 to 13.5 GHz
Channel 1,2 output amplitude
0.6 to 2.0 V from 0.5 to 7.5 GHz
0.6 to 1.5 V from 7.5 to 13.5 GHz
Channel 3A, 3B, 4A, 4B output amplitude
0.2 to 0.8 V from 0.5 to 7.5 GHz
0.2 to 0.6 V from 7.5 to 13.5 GHz
Phase adjust (Channel 1 only)
–180 to +178 °
Clock output configuration
Differential. May be operated single ended with unused output terminated into 50 Ω.
Channel 1, 2 DC coupled.
Channel 3A, 3B, 4A, 4B AC coupled.
Jitter injection
Sinusoidal 1 Hz to 200 MHz, up to 32 UI
Agilent N4965A Multi-Channel BERT 12.5G
All heads can operate with differential or single ended signal connections.
Output parameters in the generator heads and input parameters in the error detector heads can be programmed independently, or ganged together
for convenience. Presets for common logic families simplify user set up.
Key features
• Modular architecture supports 1 to 5 pattern generator or error
detector heads
• Pattern generators included integrated two or four tap de-emphasis
• Programmable generator output/detector input parameters
• Transparent jitter pass-through
• Unique swept aggressor channel delay for crosstalk characterization
• BER, bathtub and jitter tolerance testing with N4980A
• Remote control through USB or GPIB
• Compact size
The Agilent N4965A multi-channel BERT 12.5 Gb/s is a modular, multichannel signal integrity test system ideal for characterizing multi-lane
serial data channels. By adding remotely mountable heads, each of its
5 channels can be configured as either a pattern generator, or error
detector to form a bit error rate tester (BERT). Patterns available include
various lengths of hardware generated PRBS, clock patterns, and DC logic
0 and logic 1.
• Serial data receiver characterization up to 12.5 Gb/s
• Multi-lane device characterization
• Crosstalk characterization
Multi-channel BERT controller (requires external clock signal e.g. N4963A clock synthesizer)
Data rate range
1.0 to 12.5 Gb/s
Clock delay range (All channels)
0 to ±1000 UI
Delay sweep for crosstalk testing (All channels)
0, 1, 2, 4 UI pp
N4955A pattern generator remote head specifications
Pattern selection:
÷ N, where N = 2,4 (Option –P12), ÷ N, where N = 2, 4, 8, 16, 32, 64 (Option -D12)
Data output amplitude range
0.2 to 2.0 V single ended (Option -P12), 0.6 to 1.2 V single ended (Option -D12)
2-tap: 1 post cursor, Range 0 to –20 dB (Option –P12)
4-tap: 1 pre cursor, 2x post cursor (Option –D12)
Data output configuration
Pre: 0 to +8dB, post 1: 0 to –10 dB, Post 2: 0 to –8 dB
Differential. May be operated single end with unused output terminated into 50 Ω. AC
Coupled with internal bias tee.
N4956A error detector remote head specifications
Pattern selection PRBS
2n – 1, n = 7, 10, 15, 23, 31
Data input range
100 mV to 1 V (p-p) single ended
Data delay range
± 1000 UI
Data input configuration
Differential. May be operated single end with unused output terminated into 50 Ω. AC
Coupled with internal bias tee
Accumulated BER, error count, data loss, sync loss. Multi-channel BER, bathtub scan,
jitter tolerance testing (with N4980A software)
Remote head options:
• N4955A-P12 pattern generator with 2-tap de-emphasis 12.5 Gb/s
• N4955A-D12 pattern generator with 4-tap de-emphasis 12.5 Gb/s
• N4956A-E12 error detector 12.5 Gb/s
N4965A controller options
• N4960A-CTR multi-channel BERT controller
Agilent N4967A 40Gb/s BERT System
The N4967A is an affordable and compact modular Serial BERT solution
designed for device characterization, research and development testing,
and general lab use. The N4967A consists of these main components:
Key features & Specifications
• Internal clock supports 40 Gb/s operation
• External half-rate clock input supports operation from 22 to 44 Gb/s
• True PRBS pattern generation at full data rate
• Supports differential or single ended inputs and outputs
• Fully supported in N4980A software
N4974A PRBS generator 44 Gb/s
N4968A clock and data demultiplexer 44 Gb/s
N4965A multi-channel BERT 12.5 Gb/s
N4980A multi-instrument BERT software
Characterization of optical transceivers operating up to 44 Gb/s, such as:
• OTU OC-768/STM-256
• 100 Gb Ethernet
• InfiniBand EDR
• 32 G Fibre Channel (32GFC)
• 40 Gb/s backplanes, active optical cables
Agilent N4980A Multi-Instrument BERT Software
The Agilent N4980A multi-instrument BERT software provides the ability
to control multiple instruments through a rich Windows®-based graphical
user interface (GUI). Bit error rate measurements are simple to set up
with the intuitive control screens. The software is ideal for setting up
and performing parallel BER measurements and jitter tolerance testing
(N4980A-JTS) in multi-lane and SERDES devices. You can also create
your own patterns using the powerful editing tools built into the pattern
editor to meet your unique requirements.
• Serial data receiver characterization
• Parallel BER measurements
• N4980A-JTS for jitter tolerance testing
• Optical transceiver/transponder characterization
The N4980A multi-instrument BERT software provides easy-touse control panels for the following instruments:
• N4965A multi-channel BERT 12.5 Gb/s
• N4962A serial BERT 12.5 Gb/s
• N4963A clock synthesizer 13.5 Gb/s
• N4960A serial BERT 32 and 17 Gb/s
Key features & Specifications
• Software is Windows®-based controlling equipment through USB or
• Simple and fast setup
• Full instrument remote control
• Test single and multi-lane BER with active aggressor signals
• Monitor instantaneous BER over time or measure BER over a specific
• Fast and efficient parallel jitter tolerance testing (N4980A-JTS)
• View BER-measured BERT scan (often called bathtub curve, a
horizontal slice through eye)
• Intuitive pattern editor
• De-emphasis tap weight calculator for easy calculation of required
tap settings and programming to supported de-emphasis pattern
The base software is available free of charge (registration required for
download). The N4980A-JTS jitter tolerance measurement package is an
option enabled by a software key.
Agilent N4970A PRBS Generator and N4984A Clock Divider Products
The Agilent Technologies N4970A PRBS generator 10 Gb/s is a selfcontained 10 Gb/s pseudo random bit sequence (PRBS) generator. The
N4970A PRBS generator 10 Gb/s can be configured to use an external
clock source allowing operation from 50 Mb/s to 12.5 Gb/s. Five different
PRBS pattern lengths and three mark density ratios are available via user
selectable jumpers.
The Agilent Technologies N4984A clock dividers are general purpose test
accessories designed for microwave communications and test applications. The inputs and outputs are AC-coupled. The dividers are self-contained and plug into standard AC power sources.
The N4984A-040 clock divider 40 GHz simultaneously provides divideby-2, divide-by-4, and divide-by-8 outputs. The single-ended input is
accessed from the rear via a 2.9 mm connector while the outputs are
provided at the front panel via SMA connectors.
Key features & Specifications
• Wide operating range, from 50 Mb/s to 12.5 Gb/s
• Multiple output patterns: 2n – 1 where n= 7, 10, 15, 23, 31
• Fixed-frequency internal clock source
• Multiple mark density settings: 2, 4, 8
• Differential outputs
The N4984A-020 clock divider 20 GHz provides divide-by-1, divide-by-2,
divide-by-4, or divide-by-8 output, set by selectable jumpers on the rear
panel. Inputs and outputs are differential.
Key features & Specifications
• Wide frequency range: up to 40 GHz
• High input sensitivity
• Very low jitter
• Fast rise/fall times
• Divide-by- 1/2/4/8 outputs
• AC power supply included
• Size: 3.5” x 4.0” x 1”
• 10 Gb/s ethernet
• Production testing
The N4984A dividers can be used to extend the trigger range of high
speed sampling oscilloscopes. Precision timebase measurements will
benefit from the very low added jitter and fast waveform edges. The
N4984A can be used to generate synchronized, high frequency clocks
from existing sinusoidal, synthesized sources. The low 1/f phase noise
characteristics of the dividers will benefit high frequency phase lock loop
Agilent N4974A and N4975A PRBS Generators
The Agilent Technologies N4975A PRBS generator 56 Gb/s is a fully selfcontained 56 Gb/s pattern generator. The N4975A is designed to provide
an excellent quality “eye” through comprehensive integration of key building blocks into monolithic integrated circuits founded on SiGe technology.
The Agilent Technologies N4974A PRBS generator 44 Gb/s is a selfcontained pattern generator capable of operating at either a single
fixed-frequency bit rate using the internal oscillator or operating over a
wider frequency range when used with an external half-rate clock source.
The N4974A PRBS generator 44 Gb/s operates from 22 to 44 Gb/s when
used with an external clock or at 39.81312 Gb/s when used with the
internal oscillator. The generator is also available with two more internal
oscillator choices, operating at either 25.78125 or 28.0 Gb/s.
Key features & Specifications
• Operates at 56 Gb/s with internal clock or from 39.8 to 56 Gb/s with
external clock source
• Self-contained PRBS generator
• Excellent eye quality, fast rise and fall time
• Built-in quarter-rate clock source (14.0 GHz)
• 1010, 1100, and 215 – 1 patterns
• 500 to 1000 mV, adjustable differential output
• Quarter and half rate clock outputs
• Pattern trigger output
Key features & Specifications
• 40, 28, or 25 Gb/s data rates with internal fixed frequency clock
• 22 to 44 Gb/s data rates with external clock
• Excellent eye quality — rise/fall time < 8 ps typ
• Patterns 2n – 1;n=7,15,31
• 1000 mV differential output
• Ultra low noise trigger for precision time base applications
• Pattern trigger output
• CEI 56G-VSR advanced research
• Characterizing 56 G, 40 G, and 25 G optical transceivers and
• General high speed serial link characterization
• Ultra-high speed communications components testing
• Stimulus response measurements for 40 Gb/s components
• Backplane signal integrity
• Optical transceiver characterization
Agilent N4903B J-BERT High-Performance Serial BERT
• Operates from 150 Mb/s to 7, 12.5 or 14.2 Gb/s
• Built-in calibrated and compliant jitter sources for RJ, PJ1, PJ2, SJ,
• Interference channel with sinusoidal interference and switchable ISI
• Automated jitter tolerance, compliance curve and characterization
• Second output channel with independent PRBS and pattern memory
• Built-in tunable CDR
• Half-rate clock with variable duty cycle, sub-rate clock outputs
Pattern generator
• Operation range: 620 Mb/s1 to 7 Gb/s (Option C07 or G07), to
12.5 Gb/s (Opt C13 or G13), to 14.2 Gb/s (Opt G13 + D14 or C13 +
• Data outputs: 1 or 2 (Option 002), differential or single-ended
• Output amplitude: 0.1 to 1.8 Vpp
• Jitter: < 9 ps pp
• Transition time: < 25 ps (10 to 90 % and ECL levels)
• Cross point adjust: 20 to 80 %
• Pattern: PRBS 2n – 1, n = 7, 10, 11, 15, 23, 31
• Memory: 32 Mbit and pattern sequencing (up to 120 blocks)
• Delay control input: Up to 220 ps for external jitter injection
150 Mb/s when using external clock source
Jitter tolerance test
• Built-in, calibrated jitter sources (Option J10): RJ up to 15.7 ps rms @
1 GHz, PJ1+2 up to 620 ps @ 300 MHz, SJ multiple UIs up to 5 MHz,
BUJ up to 220 ps, according CEI
• SSC (Option J11): Triangular and arbitrary modulation, up to
5000 ppm @ 0.1 to 100 kHz
J-BERT N4903B high-performance serial BERT
Complete receiver jitter tolerance
J-BERT provides built-in and calibrated jitter sources for the most
accurate jitter tolerance testing of receivers used in many popular
multigigabit serial bus interfaces.
• Interference channel (Option J20): ISI by switchable board traces,
sinusoidal interference (vertical eye closure) common and differential
mode up to 400 mV @ 3.2 GHz
It is used by R&D and test engineers in the semiconductor, computer, and
communication industry to characterize new designs and verify standard
Error detector
• Ext. Clock: 150 Mb/s to 7 Gb/s (Opt. C07) or 12.5 Gb/s (Opt. C13)
• Data input: 1, differential or single-ended
• Clock recovery: always incl., variable loop bandwidth 0.5 to 12 MHz
J-BERT supports testing of embedded and forwarded clock architectures
for data rates up to 14.2 Gb/s.
• Sensitivity: < 50 mV
Long-term investment
J-BERT is configurable for today’s test and budget needs but allows
retrofit of all options when test needs change.
Ordering information
• N4903B high-performance serial BERT with several accessories.
• N4903B-C07/C13 BERT with max. data rate 7/12.5 Gb/s
• N4903B-G07/G13 pattern generator w/ max. data rate 7/12.5 Gb/s
• N4903B-D14 data rate extension for pattern generator to 14.2 Gb/s
• N4903B-002 PRBS and pattern on aux data output (2nd output ch)
• N4903B-003 half-rate clock with variable duty cycle
• N4903B-J10 jitter sources (PJ1, PJ2, SJ, RJ, sRJ, BUJ)
• N4903B-J11 SSC, residual SSC
Key applications
• Receiver jitter tolerance
• PCI Express, USB3, SATA, SAS, DisplayPort
• Forwarded clock interfaces: QPI
• Fibre Channel
• XFP, SFP, SFP+, 10 GbE, XAUI, 100 GbE (10 x 10 Gb/s)
• N4903B-J12 jitter tolerance compliance suite
• Backplanes: CEI, 10 GBASE-KR, 100 GBASE-KR4
• N4903B-J20 interference channel
Measurement suite
• BER,accumulated,interval;symbol/frameerrorratio(OptionA02);bit
• BERT scan, “bathtub” curve including RJ, DJ, TJ separation
• Output level, Q-factor, eye-diagram with BER contour and eye masks
• Fast eye mask, spectral jitter, error location capture, fast TJ
• N4903B-A01 bit recovery mode
• N4903B-A02 SER/FER analysis
• N4903B-UAB upgrade from N4903A
All options are upgradeable
Agilent N4877A, N1070A CDR Solutions and N4876A 28.4 Gb/s Multiplexer 2:1
N4876A 28.4 Gb/s multiplexer 2 : 1
• Extends the pattern generator data rate to up to 28.4 Gb/s
• Transparent for timing jitter
• Operation via J-BERT user interface or as stand-alone
N4877A, N1075A: Electrical and optical clock recovery solution
for BER and waveform analysis
• Continuous, un-banded tuning from 50 Mb/s to 32 Gb/s
• Ultra low residual jitter: < 100 femtoseconds rms
• Golden PLL operation with a tunable loop bandwidth from
30 kHz to 20 MHz for configurable standard compliant test
• PLL BW/jitter transfer and phase noise/jitter spectrum
Accurate characterization up to 28 Gb/s
The N4876A 28 Gb/s multiplexer allows to extend the pattern generator
data rate of the J-BERT N4903B and ParBERT 81250A up to 28.4 Gb/s.
Design and test engineers in the semiconductor, communications, storage
and computer industry can now accurately characterize the next generation of serial interfaces. N4876A is transparent to jitter, so when using it
with the J-BERT N4903B, calibrated RJ and PJ can be generated.
Both bit-error-ratio-testers (BERTs) and DCA’s require a clock signal to
synchronize the measurement system to the incoming data stream. When
the necessary synchronous clock/trigger is not available, a common solution is to derive a clock from the data being measured. The 83496B clock
recovery module for the 86100D and N4877A/N1070A standalone clock
recovery instrument provide ideal performance for waveform analysis and
BER test.
They can derive a clock from NRZ signals with rates as low as 50 Mb/s, as
high as 32 Gb/s, and any rate between, providing the ultimate in flexibility
and value. With jitter as low as 100 fs rms, the residual jitter of the output
clock is virtually negligible, allowing accurate measurements of very low
levels of signal jitter and high margin in jitter tolerance/receiver tests.
• The 83496B operates from 50 Mb/s to 14.2 Gb/s and can be
configured for both optical and electrical signals
• The N4877A and N1070A operate from 50 Mb/s to 32 Gb/s and
provide clock, auxiliary clock, and demultiplexed data outputs
• The N4877A operates on electrical signals, while the N1070 adds an
optical coupler/converter box allowing analysis of both optical and
electrical signals
28.4 Gb/s PRBS output signal of multiplexer N4876A
Target applications
• IEEE 802.3 ba 100 GBASE-LR4, -ER4 interfaces operating at data
rates of 25.78125 Gb/s, T11 16G or 32G Fibre Channel
• OIF CEI backplanes operating between 19.9 and 28 Gb/s
• Clean generator for transmitter test
• Stressed generator for receiver tolerance testing
PLL and jitter spectrum analysis
Use 86100CU-400 software to make fast, accurate and repeatable
measurements of phase-locked loop (PLL) bandwidth/jitter transfer. With
a precision jitter source, the 83496B, N4877, and N1070A can be configured as a jitter receiver to create a PLL stimulus-response test system.
• Output data rate: 1.25 to 27.0 Gb/s (28.4 Gb/s when using J-BERT
N4903B Option D14)
• Output amplitude: 0.05 to 1.800 V in a –2 to +3 V window
• Intrinsic jitter: 1 ps rms typ. for clock pattern
• Transition time: 10 ps typ. (20 to 80% ), Crossing point: 20 to 80%
• Clock/2 jitter: 45 to 55% shorter/longer even bits than odd bits
• Output: Differential or single-ended, 50 Ω
• Data rates: 50 Mb/s to 32 Gb/s, continuously tunable
• Tunable loop bandwidth up to 20 MHz
• Optical inputs: MMF to 16 Gb/s, SMF to 32 Gb/s
• Residual jitter as low as 100 fs rms
• Demultiplexed data (outputs can be swapped)
• Recovered clock can be divided by 1, 2, 4
• Input sensitivity: 25 mV differential, 50 Ω
ParBERT 81250 Parallel Bit Error Ratio Tester
• Different modules covering a range of data rates from 333 kb/s to
13.5 Gb/s
• Up to 66 synchronous pattern generator and analyzer channels
• Powerful pattern sequencer providing looping and branching on
events enabling control of complex tests and devices
• PRBS/PRWS and memory based patterns up to 64 Mb
• Delay control input for jitter generation
• Error detector modules featuring individual CDR
• Measurement suite
Powerful pattern sequencing
Run complex tests with a variety of test patterns in one shot without stopping the instrument for pattern download is enabled through the powerful
ParBERT 81250 pattern sequencer with its up to five nested loop levels
and branching on external and internal events or upon programming
Configurable with multiple bit rates and channels
Modules for four speed-classes are available for the ParBERT 81250
System that cover data generation and analysis from 333 kb/s up to
13.5 Gb/s. Users can configure the number of analyzer and generator
channels independently. Each channel can be programmed with individual
level, pattern and timing parameters. Once purchased in a certain
configuration ParBERT 81250 can easily be extended to fit future needs
protecting investment over a long timeframe.
Real-time analysis of multiple lanes
The ParBERT analyzers can automatically synchronize the incoming data
stream. ParBERT offers a comprehensive measurement suite:
The ParBERT 81250 parallel bit error ratio tester provides extremely fast
parallel BER testing for high-speed digital communication ports,
components, chips or modules. ParBERT is a modular, flexible and
scalable platform with comprehensive software and measurement suite
suited for many applications in the semiconductor, computer, storage,
communications and consumer industry.
BER measurement (one-/zero errors, accumulated errors...)
Fast eye mask measurement (mask test with pass/fail)
DUT output timing measurement (RJ, DJ, TJ, phase margin)
Spectral decomposition of jitter (spectral jitter analysis)
DUT output level measurement (high/low level, amplitude, Q-factor)
Eye opening (3-dimensional eye analysis voltage-time-BER)
Receiver jitter tolerance
The ParBERT generator modules with 13.5/7/3.35 Gb/s data rates offer
jitter injection capabilities via the external delay control input. This
allows in depth receiver jitter tolerance analysis.
• R&D characterization and compliance testing of single and multi-lane
receiver and transmitter ports
• Manufacturing test of multiple devices in parallel MUX, DeMUX
• A/D, D/A converter testing
• Multi-lane computer buses: PCI Express, HDMI, MIPI, CPU-frontside
buses such as QPI, memory buses such as AMB, SMI
• Communication interfaces: PON ONU/OLT, IEEE 802.3 xx (10 GbE,
40 GbE, 100 GbE) , XAUI, SONET/SDH, SFI-4, SFI-5, CEI backplanes,
Fibre Channel
Agilent N5980A 3.125 Gb/s Manufacturing Serial BERT
• Standard measurements at rates between 125 Mb/s and 3.125 Gb/s
• Generation of pseudo random bit sequence (PRBS) polynomials and
a K28.5 pattern at low voltage differential signal (LVDS) or emitter
coupled logic (ECL) levels
• Flexible connections to the device under test via 3.5 mm differential
electrical coax connectors and/or standard optical
• SFP module plug-ins
• Optical and electrical error injection once or at selectable bit error
ratio (BER)
• Analysis of gated BER with display of the absolute number of errors
and selectability of gate time
• Dramatically simplified transceiver measurements that provide just the
essential tests via the one page graphical user interface (running on
an external Windows XP PC via a USB 2.0 interface)
• Full programmability of all graphical user interface features from
another software program
Data rates
• Fast Ethernet: 125 Mb/s
• OC-3: 155.52 Mb/s, OC-12: 622.08 Mb/s, OC-48: 2.48832 Gb/s
• OC-48 with FEC: 2.66606 Gb/s
• 1 x FC: 1.0625 Gb/s, 2 x FC: 2.125 Gb/s
• 1 x Gb Ethernet: 1.25 Gb/s
• XAUI: 3.125 Gb/s
• Accuracy: ±50 ppm
Pattern generator
• PRBS: 27 – 1, 215 – 1, 223 – 1, 231 – 1
• Data pattern: K28.5
• Clock pattern: Data rate divide by n, n = 2, 4, 8, 10, 16, 20
• The pattern can be individually adjusted for pattern generator
electrical out and optical out
Error injection
• Fixed electrical and optical error inject
• Fixed error ratios of 1 error in 10n bits, n = 3, 4, 5, 6, 7, 8, 9
• Single error injection
• Separate error ratios can be adjusted for pattern generator electrical
out and optical out
The Agilent N5980A 3.125 Gb/s serial BERT is ideal for manual or
automated manufacturing test of electrical and optical devices running
at speeds between 125 Mb/s and 3.125 Gb/s. It addresses all common
standard speeds via selectable bit rates.
Easy-to-use and cost efficient
The software user interface has one standard or one advanced screen to
ensure intuitive use for operators. It makes the instrument easy to use and
easy to learn.
Pattern generator electrical out
A differential electrical output is provided on the front-panel
Output amplitude
Twice the measurement throughput
ECL: 850 mVpp typ., single-ended/1700 mVpp typ., differential
LVDS: 400 mVpp typ., single-ended/800 mVpp typ., differential
Jitter: 0.05 UI typ. @ OC-12, 0.08 UI typ. @ GbE, 0.15 UI typ. @ OC-48
By using both the electrical and optical (SFP) interfaces concurrently, you
can double your measurement throughput (electrical in/optical out and
vice versa).
Pattern generator optical out
• A standard SFP housing is provided
• Minimum number of insertion/deinsertion cycles: 200
Automation made easy
The remote programmability of the user interface, using SCPI – syntax,
makes it simple to integrate the N5980A into other programs.
Error detector
• A differential electrical input is provided on the front-panel
• Data rate is the same as pattern generator
• Pattern: PRBS: 27–1, 215–1, 223–1, 231–1
• Data input: Differential AC coupled
• Max. input amplitude: 1 Vpp, single-ended, 2 Vpp, differential
• Clock data recovery: Internal CDR
• Impedance: 100 Ω nominal, Sensitivity: < 50 mV
• Synchronization: Automatically on level, polarity, phase, bit and
PRBS, K28.5 pattern or clock generation and integrated clock
data recovery
The N5980A can generate standard PRBS polynomials, K28.5 (‘Comma’)
characters and different sub-rate clocks (/2 to /20). It can also inject
errors with an adjustable error ratio. The receiver has a clock-data
recovery (CDR) built-in and differential inputs (SMA) for signals from
50 mVpp to 2 Vpp amplitude.
Standard (SFP) optical module plug-in
The instrument has a standard SFP – female connector. This enables all
different kind of user-selectable optical modules e.g for multimode/
single-mode fiber at 850, 1310 and 1550 nm for the test set-up.
Agilent N4906B-003 (3.6 Gb/s) & N4906B-012 (12.5 Gb/s) Serial BERT
Excellent price/performance ratio
Variable bit rates up to 3.6 or 12.5 Gb/s
< 25 ps transition time
< 50 mV pp input sensitivity
Fast eye mask measurement for pass/fail testing (Option 101)
True differential data generation and analysis capability
Enhanced measurement suite (Option 101)
Integrated clock data recovery (Option 102)
Small form factor saves bench or rack space
LAN, USB, GPIB for remote control
Compatibility with existing remote commands, e.g. Agilent 71612,
86130A Series and N4900 Series
• Applications: Manufacturing test, telecom transceivers such as
SONET/SDH Fibre Channel, 10GbE, XFP/XFI, PON-OLT’s and highspeed serial computer buses
Pattern generator
• Operation range:
• 9.5 to 12.5 Gb/s (Option 012)
• 150 Mb/s to 12.5 Gb/s (Option 102)
• 150 Mb/s to 3.6 Gb/s (Option 003)
• Data output: 1, differential or single-ended
• Output amplitude: 0.10 to 1.8 V in 5 mV steps
• Jitter: 9 ps pp typical
• Transition time: < 25 ps (10 to 90 % and ECL levels)
• Cross point adjust: 20 to 80 %
• PRBS 2n – 1, n = 7, 10, 11, 15, 23, 31
• User-definable memory: 32 Mbit
Error detector
• Operation range:
• 9.5 to 12.5 Gb/s (Option 012)
• 150 Mb/s to 3.6 Gb/s (Option 003)
• 150 Mb/s to 12.5 Gb/s (Option 102)
• Data input: 1, single-ended or differential (Option 101 or 003)
• Delay adjust: 1.5 ns
• Clock data recovery (Option 102):
• 1.058 to 1.6 Gb/s: Loop bandwidth 1 MHz typ.
• 2.115 to 3.2 Gb/s: Loop bandwidth 2 MHz typ.
• 4.23 to 6.4 Gb/s: Loop bandwidth 4 MHz typ.
• 9.9 to 10.9 Gb/s: Loop bandwidth 8 MHz typ.
• Sensitivity: < 50 mV
The serial BERT N4906B is a general-purpose bit error ratio tester,
designed for testing high-speed digital communication components and
systems. It is ideal for cost-effective manufacturing and telecom device
testing. It offers a 3.6 or 12.5 Gb/s pattern generator and error detector
with excellent price/performance ratio.
• Fast eye mask measurement with pass/fail (Option 101)
• BERT scan with RJ/DJ separation (Option 101)
• Fast total jitter (Option 101)
• Spectral jitter decomposition (Option 101)
• Eye contour (Option 101)
• Output level (Option 101)
• Error location capture (Option 101)
Transition times < 25 ps allow precise measurements. The analyzer can be
configured with CDR to test clockless interfaces and with true differential
inputs to test LVDS and other differential interfaces.
interfaces allow smooth integration into automated test environments.
For bench users the N4906B serial BERT offers an intuitive user interface
with state-of-the-art Windows-XP based touch-screen.
Deeper insight into the device’s performance can be obtained with the
enhanced measurement suite. It offers many valuable signal analysis
tools, such as BERT scan (so-called bathtub curves) with total jitter and
its separation into RJ and DJ, eye contours, spectral jitter decomposition
and more.
Agilent N4917A Optical Receiver Stress Test Solution
• Calibrated injection of OMA (optical modulation amplitude), ER
(extinction ratio), and VECP (vertical eye closure penalty) for accurate
• Supports multiple standards: 10 Gb Ethernet -LR, -ER, -SR, 8 GFC,
10 GFC
• Automated BER versus OMA measurement saves engineering time
• Reproducible results with Agilent proven and complete accessory kits
• Affordable with one reference transmitter for 1310 and 1550 nm,
Automated conformance and charactization tests
Engineers save programming and test time with the automated BER
versus OMA measurements.
Reproducible test results
The values of VECP, OMA and ER are calibrated with the 86100C/D
Infiniium DCA controlled by the N4917A automation and calibration
software. Reproducible test results, even across different test sites are
now possible when using the Agilent verified accessory kits including all
filters, adapters and cables required.
• Reference transmitter for 850 nm, multimode
Affordable solution for 850, 1310 and 1550 nm
The Agilent 81490A reference transmitter supports 850 nm multimode
fibers and 1310/1550 nm single-mode fibers, reducing the amount of test
equipment needed when testing devices for multiple standards.
Calibration and automation software N4917A
This software controls all instruments required to run the optical receiver
stress test. It guides the user through the instrument set-up and calibration
procedure with the 86100C/D Infiniium DCA.
Complete optical receiver stress test solution for robust designs
The user interface allows the user to choose between standard
compliant stress testing or custom stressed eye values for ER, OMA,
sinusoidal interference and sinusoidal jitter. Automated BER versus OMA
measurements can be made and displayed as a graphical result screen
and documented in a test report.
The Agilent N4917A provides repeatable and calibrated characterization
and conformance test results. Design and test engineers can now
accurately test optical transceivers and ROSAs up to 14.2 Gb/s.
The N4917A software runs on the J-BERT N4903A/B or on an external
Windows XP PC.
Complete, calibrated and repeatable stress test of optical
• Optical transceivers and ROSAs (receive optical sub assemblies) up
to 14.2 Gb/s
• 10 Gb Ethernet, Fibre Channel
• Compliance test and characterization
• R&D and test of optical storage and communication devices
Optical receiver stress test solution consists of:
• Calibrationandautomationsoftwarewithaccessorykitsfor10GbEand
8G/10G Fibre Channel N4917A
• Lightwavemeasurementsystemframe8164Bwith:
- Reference transmitter:
81490A-135 for 1310/1550 nm for single-mode fiber
81490A-E03 for 850 nm, multimode fiber
- Optical attenuator 81576A or 77-Series
• J-BERTN4903A/B-C13,-J10,-J12,-J20
• Digitalcommunicationanalyzer86100C/Dwith86105B/C/D
Calibrated injection of ER, OMA and VECP
The N4917A automation and calibration software controls all instruments
and allows the user to enter compliant ER, OMA and VECP.
Agilent 86100D Wide-Bandwidth Oscilloscope
The 86100 series digital communications analyzer is the industry standard
for characterizing high-speed transmitter waveforms. Integrated, calibrated optical reference receivers coupled with built-in automated compliance
software are the key to accurate measurements.
• Built-in waveform simulator with random/periodic jitter and noise
• Live or offline signal analysis (using N1010A FlexDCA remote access
• Supports up to 16 channels for testing high density ASIC/FPGA
testing and parallel designs. New option 86100D-PTB integrates the
precision timebase within the mainframe allowing ultra-low jitter for
up to 16 channels.
• Vertical gain and offset controls that can be assigned to all channels
and functions
• User-defined multi-purpose button
• User-defined analog control knob
• 3X faster CPU than DCA-J
• 100% backwards compatibility with all DCA modules
The 86100D DCA-X has been engineered for unmatched accuracy, insight,
and ease-of-use. In addition to providing industry leading signal integrity
measurements, the DCA-X provides:
Improves margins and helps to differentiate products for a wide
range of applications such as:
• Transceiver design and manufacturing
• ASIC / FPGA / IC design and characterization
• Signal integrity measurements on Serial bus designs
• Cables, Printed Circuit Boards (PCB)
Accurate characterization of optical waveforms
The 86100D is the ideal tool for viewing optical transceiver signals. A variety of plug-in modules are available with built-in optical receivers allowing
the highest accuracy in waveform analysis. Industry standard reference
receivers provide the correct frequency response to validate compliance to
SONET/SDH, Ethernet, Fibre Channel and other specifications. Select from
several plug-in modules to get the configuration that best matches your
transceiver applications. Built-in test applications provide the following
• Automatic testing to industry standard eye masks
• Accurate measurement of eye-diagram parameters including
extinction ratio, eye-height and width, crossing percentage etc.
• Fast throughput and simultaneous multiple channel testing for
extremely low cost-of-test
• Simultaneous parallel mask test for up to 16 channels with up to 64
parametric measurements
Precision measurements on high-speed signals at the touch of
one button!
• Scope mode yields the most accurate waveform measurements
• Eye/Mask mode provides fast and accurate compliance testing of
• TDR/TDT mode for precision impedance measurements
with S-parameter capability. TDR edge speed faster than
10 ps with >50 GHz BW.
• Jitter and amplitude mode for comprehensive analysis of signal
Powerful new INSIGHT
• Integrated de-embedding/embedding capability (using 86100D-SIM
InfiniiSim-DCA license)
• Advanced signal processing such as filtering, FFT, differentiate and
integrate functions
• New measurement capability, including Data Dependent Pulse Width
Shrinkage (DDPWS), uncorrelated jitter (UJ), J2, J9 and more…
Powerful analysis features provide greater insight
• Integrated de-embedding, embedding, and equalization capability
• Jitter spectrum and phase locked loop (PLL) analysis
• Jitter analysis on long patterns such as PRBS31 (using option 401)
• Custom measurements and analysis using The MathWorks MATLAB
• Dual user interface:
Lowest cost of test
• Modular platform supports up to 16 parallel channels
• Optimized algorithms designed for manufacturing test
• Modular – buy only what you need today knowing you can upgrade
• Protect your investment — the 86100D is 100% compatible with all
DCA modules
- FlexDCA — a new customizable vector-based user interface for
scope, eye, and jitter measurements
- DCA-J “classic” user interface for 100% backwards compatibility
• Customizable user-interface
• Display up to 64 measurements simultaneously
• ONE button setups
Agilent 86100D Wide-Bandwidth Oscilloscope
Scope mode
Jitter mode
High-fidelity waveform characterization (Purple: raw trace, Blue: de-embedded
Precision jitter, amplitude, and frequency analysis capability
Eye/Mask mode
TDR/TDT mode
Fast transmitter characterization using eye-diagram analysis and automated mask
margin measurements
Accurate time domain reflectometry/transmission and S-parameter measurements
Precision measurements, more margin, and more insight
The 86100D DCA-X oscilloscope combines high analog bandwidth, low
jitter, and low noise performance to accurately characterize optical and
electrical designs from 50 Mb/s to over 80 Gb/s. The mainframe provides
the foundation for powerful insight and measurement capability, such as
de-embedding of cables and fixtures, that improve margins and allow
engineers to see the true performance of their designs.
The DCA-X provides powerful analysis capability that is enabled through
licensed software options. Examples include 86100D-200 for fast and
accurate jitter analysis, and 86100D-SIM for de-embedding and/or
embedding of fixtures and cables.
The modular system means that the instrument can grow to meet your
needs, when you need it. There’s no need to purchase capability that
you don’t need now. The DCA-X supports a wide range of modules for
testing optical and electrical designs. Select modules to get the specific
bandwidth, filtering, and sensitivity you need. The DCA-X supports all
modules in the DCA family and is 100% backwards compatible with the
86100C mainframe.
Agilent 86100D Wide-Bandwidth Oscilloscope
The 86100D DCA-X features two user interfaces for optimum ease-of-use.
It includes the classic DCA interface for complete backwards compatibility
with earlier DCA mainframes. It also includes the new FlexDCA interface
that provides new measurements and powerful analysis capability in a
fully customizable application.
Option 200 enhanced jitter analysis software
Total Jitter (TJ), Random Jitter (RJ), Deterministic Jitter (DJ), Periodic
Jitter (PJ), Data Dependent Jitter (DDJ), Duty Cycle Distortion (DCD), Intersymbol Interference (ISI), Sub-Rate Jitter (SRJ), Asynchronous periodic
jitter frequencies, Subrate jitter components.
The following measurements are available from the tool bar, as well as
the pull down menus. The available measurements depend on the DCA-X
operating mode.
FlexDCA adds the following measurements:
Data Dependent Pulse Width Shrinkage (DDPWS), Uncorrelated Jitter
(UJ), J2, J9
Oscilloscope mode
Data displays
TJ histogram, RJ/PJ histogram, DDJ histogram, Composite histogram,
DDJ versus Bit position, Bathtub curve (log or Q scale)
Rise Time, Fall Time, Jitter RMS, Jitter p-p, Period, Frequency, + Pulse
Width, – Pulse Width, Duty Cycle, Delta Time, [Tmax, Tmin, Tedge—remote commands only]
Option 201 advanced waveform analysis
Overshoot, Average Power, V amptd, V p-p, V rms, V top, V base, V max, V
min, V avg, OMA (Optical Modulation Amplitude)
Eye/Mask mode
Data displays
NRZ eye measurements
Equalized waveform
Deep memory pattern waveform, user-defined measurements through
MATLAB interface
Extinction ratio, Jitter RMS, Jitter p-p, Average Power, Crossing Percentage, Rise Time, Fall Time, One Level, Zero Level, Eye Height, Eye Width,
Signal to Noise, Duty Cycle Distortion, Bit Rate, Eye
Option 202 enhanced impedance and S-parameters
RZ eye measurements
Option 300 amplitude analysis/RIN/Q-factor
(requires Option 200)
Extinction Ratio, Jitter RMS, Jitter p-p, Average Power, Rise Time, Fall
Time, One Level, Zero Level, Eye Height, Eye Amplitude, Opening Factor,
Eye Width, Pulse Width, Signal to Noise, Duty Cycle, Bit Rate, Contrast
Mask test
Total Interference (TI), Deterministic Interference (Dual-Dirac model, DI),
Random Noise (RN), Periodic Interference (PI), and Inter-symbol Interference (ISI), RIN (dBm or dB/Hz), Q-factor
Open Mask, Start Mask Test, Exit Mask Test, Filter, Mask Test Margins,
Mask Margin to a Hit Ratio, Mask Test Scaling, Create NRZ Mask
Data displays
TI histogram, RN/PI histogram, ISI histogram
Advanced measurement options
The 86100D’s software options allow advanced analysis.
Options 200, 201, and 300 require mainframe Option ETR.
Option 202 does not require mainframe Option ETR.
Option 401 does not require Options ETR and 200 unless a DDPWS
measurement is required.
Option 400 PLL and jitter spectrum measurement
Jitter spectrum/phase noise measurements
Integrated Jitter: Total Jitter (TJ), Random Jitter (RJ), Deterministic Jitter
Graph, Frequency versus Time Graph, Jitter Histogram, Post Processed
Jitter Measurements, Phase Noise Graph dBc/Hz versus frequency
Agilent 86100D Wide-Bandwidth Oscilloscope
Limit tests
• Acquisition limits
• Limit test “Run Until” Conditions — Off, # of Waveforms, # of
• Report action on completion — Save waveform to memory, save
screen image
Phase Locked Loop (PLL) measurements
PLL bandwidth, PLL Peaking, Data Rate, Jitter Transfer Function (JTF)
Graph, Observed Jitter Transfer (OJTF) Graph, JTF Model.
Option 401 advanced EYE analysis
Jitter measurements
Total Jitter (TJ), Random Jitter (RJ), Deterministic Jitter (DJ), J2 Jitter
(J2), J9 Jitter (J9), Data Dependent Pulse Width Shrinkage (DDPWS)*
Measurement limit test
• Specify number of failures to stop limit test
• When to fail selected measurement — inside limits
* Requires 86100D-200
Amplitude measurements
Total Interference (TI), Random Noise (RN), Deterministic Interference
(DI), Eye Opening
Outside limits, always fail, never fail
• Report action on failure — Save waveform to memory, save screen
image, save summary
• Mask limit test
• Specify number of failed mask test samples
• Report action on failure — Save waveform to memory, save screen
image, save summary
Mask test
Pass/Fail status, hits or hit ratio limits
Option 500 productivity package
Improve the efficiency of eye-diagram testing by 40% or more
Option SIM infiniiSim-DCA
Configure measurements
• 10%, 50%, 90% or 20%, 50%, 80% or custom
TDR/TDT mode (requires TDR module)
Quick TDR, TDR/TDT setup
Eye boundaries
• Define boundaries for eye measurments
• Define boundaries for alignment
Normalize, Response, Rise Time, Fall Time, Δ Time, Minimum Impedance,
Maximum Impedance, Average Impedance (Single-ended and Mixedmode S-parameters with Option 202)
Format units for
• Duty cycle distortion — Time or percentage
• Extinction/Contrast ratio — Ratio, decibel or percentage
• Eye height — Amplitude or decibel (dB)
• Eye width — Time or ratio
• Average power — Watts or decibels (dBm)
Additional capabilities
Standard functions
Standard functions are available through pull down menus and soft keys,
and some functions are also accessible through the front panel knobs
Two vertical and two horizontal (user selectable)
Top base definition
• Automatic or custom
TDR markers
• Horizontal — Seconds or meter
• Vertical — Volts, ohms or percent reflection
• Propagation — Sielectric constant or velocity
Δ Time definition
• First edge number, edge direction, threshold
• Second edge number, edge direction, threshold
Jitter mode
• Units (time or unit interval, watts, volts, or unit amplitude)
• Signal type (data or clock)
• Measure based on edges (all, rising only, falling only)
• Graph layout (single, split, quad)
Agilent 86100D Wide-Bandwidth Oscilloscope
Quick measure configuration
Additional capabilities
When using the classic DCA interface, “Quick Measure” measurements
are initiated by pressing the <Multi-Purpose> button on the front panel.
• Four user-selectable measurements for Each Mode, Eye-mask,
TDR, etc.
• Default Settings (Eye/Mask mode) Extinction Ratio, Jitter RMS,
Average Power, Crossing Percentage
• Default Settings(scope Mode) Rise Time, Fall Time, Period, Vamptd
Waveform autoscaling
Autoscaling provides quick horizontal and vertical scaling of both pulse
and eye-diagram (RZ and NRZ) waveforms.
Gated triggering
Trigger gating port allows easy external control of data acquisition for
circulating loop or burst-data experiments. Use TTL compatible signals to
control when the instrument does and does not acquire data.
• Histogram scale (1 to 8 divisions)
• Histogram axis (vertical or horizontal)
• Histogram window (adjustable window via marker knob)
Easier calibrations
Math measurements — Classic DCA user interface
• Four user-definable functions operator magnify, invert, subtract,
versus, min, max
Stimulus response testing using the Agilent N490X BERTs
Calibrating your instrument has been simplified by placing all the performance level indicators and calibration procedures in a single high-level
location. This provides greater confidence in the measurements made and
saves time in maintaining equipment.
Error performance analysis represents an essential part of digital transmission test. The Agilent 86100D and N490X BERT have similar user
interfaces and together create a powerful test solution. If stimulus only
is needed, the 81133A and 81134A pattern generators work seamlessly
with the 86100D.
• Source — Channel, function, memory, constant, response (TDR)
Signal processing measurements — FlexDCA
• Math — Add, Subtract, Multiply, Average, Invert, Max, Min, Median
• Signal Processing — Difference (Differentiate), Summation
(Integrate), Interpolation (Linear, Sin(x)/x), Filters: 4th Order Bessel,
Butterworth, Gaussian
• Option — IRC allows extended operating range and improved
frequency response of optical reference receivers
• Transforms — FFT, versus
• Equalizer (Opt 201) — Linear Feed-forward Equalizer (LFE, up to 64
• Simulation (Option SIM) — De-embedding, embedding, random
jitter, random noise
Transitioning from the Agilent 83480A and 86100A/B/C to
the 86100D
While the 86100D has powerful new functionality that its predecessors
don’t have, it has been designed to maintain compatibility with the Agilent
86100A, 86100B, 86100C and Agilent 83480A digital communications
analyzers and Agilent 54750A wide-bandwidth oscilloscope. All modules
used in the Agilent 86100A/B/C, 83480A and 54750A can also be used
in the 86100D. Since the 86100D includes the classic DCA interface,
the remote programming command set for the 86100D designed for the
86100A/B/C will work directly. Some code modifications are required
when transitioning from the 83480A and 54750A, but the command set is
designed to minimize the level of effort required.
SCPI programming tools for FlexDCA
All calibrations
• Module (amplitude)
• Horizontal (time base)
• Extinction ratio, probe, optical channel
To facilitate easier and faster remote code development, the FlexDCA user
interface includes several SCPI programming tools. The SCPI recorder, for
example, records user interaction (via the scope front panel, mouse, or
touchscreen) and reports the equivalent SCPI remote-programming command to the user via a Record/Playback pop-up window.
Front panel calibration output level
• User selectable –2 V to 2 V
IVI-COM capability
Interchangeable Virtual Instruments (IVI) is a group of new instrument
device software specifications created by the IVI Foundation to simplify
interchangeability, increase application performance, and reduce the
cost of test program development and maintenance through design code
reuse. The 86100D IVI-COM drivers are available for download from the
Agilent website.
Touch screen configuration/calibration
• Calibration
• Disable/enable touch screen
Upgrade software
• Upgrade mainframe
• Upgrade module
VXII.2 and VXII.3 instrument contro
The 86100D DCA-X provides LAN based instrument control.
Agilent 86108B Precision Waveform Analyzer
New architecture yields precision measurements and
easy-to-use operation
The 86108B combines two high-bandwidth channels, an instrumentationgrade clock recovery which features variable loop bandwidth and peaking,
and a precision timebase into a single unit.
The ultimate in accuracy and ease-of-use for analyzing
high-speed electrical digital communications signals
Highest accuracy scope featuring:
• Ultra-low jitter < 50 fs (typ.)
• Wide bandwidth
> 35 GHz (Option LBW)
> 50 GHz (Option HBW)
• Clock-data delay mitigation (“O ns” delay)
Easy setup and operation:
• Simple one connection ‘triggerless’ operation
• Auto setup for serial bus differential signaling including PCIEXPRESS®, SATA, HDMI, DisplayPort, SFP+, 8 GFC, 10 GbE
This combination results in the world’s most accurate scope measurements available today. With setup similar to a real-time scope, it also
provides significant ease-of-use advantages over traditional sampling
scopes. The architecture virtually eliminates the trigger-sample delay inherent in most sampling instruments, and permits accurate and compliant
measurement of large amounts of periodic jitter (e.g. SSC) without the use
of specially matched cables which degrade performance.
PLL characterization/Jitter transfer:
• Flexible operation: Data or clock input/output,
50 Mb/s to 2 Gb/s or 25 MHz to 16 GHz
• Compliant: PCI SIG approved, SONET/SDH
Integrated hardware clock recovery:
Continuous clock recovery rates:
• 50Mb/sto16Gb/s(Option216)
• 50Mb/sto32Gb/s(Option232)
Adjustable loop bandwidth (LBW)/Type-2 transition frequency
• “GoldenPLL”loopbandwidthadjustment
15 KHz to 20 MHz (rate dependent)
• Peaking0to>2dB(bandwidthdependent)
Exceeds industry standards for SSC tracking
PLL bandwidth, jitter transfer and jitter spectrum
The on-board phase detector of the 86108B allows for a precision measurement of phase-locked loop (PLL) bandwidth, sometimes referred to as
jitter transfer. An external software application running on a PC controls
the jitter source to provide a modulated stimulus to the device under test
(DUT). The system is approved by the PCI SIG for PLL bandwidth compliance testing. The fast and flexible measurement can also test SONET/SDH
and other PLL designs.
The Agilent 86108B precision waveform analyzer is a plug-in module
used with the 86100C/D DCA Wide-Bandwidth Oscilloscope. An optimum
combination ultra-low jitter, low noise, and wide bandwidth makes the
86108B the ideal choice in helping engineers develop and test designs for
PCI-EXPRESS®, SATA, SAS, HDMI, DisplayPort, SFP+, Fibre Channel, CEI,
Gb Ethernet, and any proprietary rate to 32 Gb/s. The 86108B overcomes
conventional test equipment limitations and provides designers with the
confidence that the waveform displayed by the oscilloscope is a faithful
representation of the true device performance for todays technologies as
well a future generations.
Agilent 86100D Wide-Bandwidth Oscilloscope Selection Table
86100 family plug-in module matrix
No. of electrical channels
Uniltered optical bandwidth (GHz)
Electrical bandwidth (GHz)
Fiber input (μm)
Mask test sensitivity (dBm)
155 Mb/s
622 Mb/s
43.018 Gb/s
41.250 Gb/s
28.025 Gb/s
27.70 Gb/s
25.80 Gb/s
14.025 Gb/s
11.317 Gb/s
11.096 Gb/s
10.709 Gb/s
10.664 Gb/s
10.51875 Gb/s
2.666 Gb/s
6.25 Gb/s
8.50 Gb/s
2488/2500 Mb/s
5.00 Gb/s
2125 Mb/s
3.125 Gb/s
1244/1250 Mb/s
4.25 Gb/s
1063 Mb/s
10.3125 Gb/s
39.813 Gb/s
Filtered data rates
9.953 Gb/s
Wavelength range (nm)
No. of optical channels
Probe power1
The 86100 has a family of plug-in modules designed for a broad range of precision optical, electrical, and TDR/TDT measurements. The 86100 can accommodate up to 4 modules for a total of 16 measurement channels.
1. Module has receptacle to supply power for external probe.
2. Pick any 4 rates (155 Mb/s to 6.25 Gb/s).
3. This module is not compatible with the 86100A and 86100B Digital Communication Analyzer (DCA) mainframes. If you would like to upgrade older DCA’s contact
Agilent Technologies and ask for current trade-in deals.
4. The 86108A/B uses all module slots.
5. 4 optical input ports are switched internally to 2 optical-to-electrical (O/E) converter
6. All modules with optical channels can use option -IRC to enhance the effective operating range. Reference receivers can be created at any rate within +/-50% of the
hardware capability. IRC also corrects hardware imperfections to yield ideal reference receiver responses.
Agilent Pulse Pattern Generators - Selection Guide
120 MHz
165 MHz
330 MHz
330 MHz
400 MHz
660 MHz
3.35 GHz
Mainframe model
+ interface, resp.
1or 2 channels
81130A and
of channels
1 or 2
N5980A Serial,
3.125 Gb/s
1 or 2
(Vpp/50 Ω)
50 mV to
10 V
100 mV
to 10 V
100 mV to
3.8 V
50 mV to
100 mV to
3.8 V
100 mV to
2.5 V
50 mV to
Transition time
2.5 ns to
1000 s
2 ns to
200 s
0.8 ns or
1.6 ns
1 ns to
1000 s
0.8 ns or
1.6 ns
550 ps typ.
< 90 ps
Differential out
PRBS (2n – 1)
n = 7...14
n = 7...31
n = 7...15
n = 5...31
16 kBit/Channel
Arb: 256 kpts
Pat: 4 MBit
64 kBit/Channel
12 Mbit/ch
1 inner,
1 outer loop
Pattern memory
Arb: 12 kpts,
Pat: 16 MBit
Segm. looping
1 inner,
1 outer loop
1 inner,
1 outer loop
Jitter injection
LVDS levels
control interface
(Integration info)
SCPI 1992.0,
NI LabView,
Builder Pro
Function- ,
Noise source
SCPI 1992.0,
NI LabView
N4962A Serial,
12.5 Gb/s
n = 7...31
3.125 Gb/s to
40 Gb/s
SCPI 1992.0,
NI LabView,
Builder Pro
Function- ,
Noise source
#330, #660
N4965A multi-channel,
12.5 Gb/s
control Input
Yes, predefined
SCPI 1992.0
NI LabView
81250A multi-channel
675 Mb/s, 3.35, 7,
13.5 Gb/s
N4903B Serial, 7, 12.5
and 14.2 Gb/s
Complete multi-channel pattern generator:
ParBERT 81250A Series
M8020A, multi-channel,
16 Gb/s, 32 Gb/s
N4876A, N4877A Mux,
Demux/CDR, 28.4 Gb/s
N4960A Serial,
17 and 32 Gb/s
Product vs. Measurement Selection Table
Volume I
Serial BERT 32 and 17 Gb/s
Multi-channel BERT 12.5 Gb/s
Serial BERT system 40 Gb/s
Manufacturing serial BERT
Serial BERT
Optical receiver stress test solution
Infiniium DCA-J oscilloscope
Pulse pattern noise generators
J-BERT N4903B/ M8020A
Measurement parameter
Tunable laser sources
DFB laser sources
Optical power meters
Return loss modules
High-power optical attenuators
Modular optical switches
Polarization controllers
Polarisation solutions
Multi-wavelength meters
Photonic dispersion & Loss analyzer
Lightwave component analyzer
Optical modulation analyzer
Reference transmitter & Receiver
Arbitrary waveform generator
Precision source/Measure unit (SMU)
Volume II
12 17 19 25 26 30 31 31 33 21 23 27 33 34 36 38 14 16 20 21 27 28 29 30 31 38
Insertion loss
Basic optical component test
Return loss
Spectral IL
EDFA test
Polarization state
Chromatic dispersion
Polarization dependent loss
Polarization extinction ratio
Coherent component test
Polarization mode dispersion
Electro-optical S-parameter
Gain imbalance/IQ offset
Channel skew
Quadrature error
Magnitude error/Phase error
Modulation signal
Pulse response
Optical transceiver test
Extinction ratio
Optical modulation amplitude
Vertical eye closure penalty
Transmitter dispersion penalty
Jitter analysis
Jitter tolerance
Bit error ratio
Receiver sensitivity
Stressed receiver sensitivity
A personalized view into the information most
relevant to you.
AdvancedTCA® Extensions for Instrumentation
and Test (AXIe) is an open standard that
extends the AdvancedTCA for general purpose
and semiconductor test. Agilent is a founding
member of the AXIe consortium.
For more information on Agilent Technologies’ products,
applications or services, please contact your local Agilent office.
The complete list is available at:
United States
Asia Paciic
LAN eXtensions for Instruments puts the
power of Ethernet and the Web inside your test
systems. Agilent is a founding member of the
LXI consortium.
Hong Kong
Other AP Countries
Three-Year Warranty
Beyond product specification, changing the
ownership experience. Agilent is the only test
and measurement company that offers threeyear warranty on all instruments, worldwide.
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Agilent Assurance Plans
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operating to specifications and you can
continually rely on accurate measurements.
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For other unlisted countries:
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Related Literature:
Product specifications and descriptions in this document subject
to change without notice.
Lightwave Catalog Volume 1:
General Photonic Test 5989-6753EN
Lightwave Catalog Volume 2:
Optical-Electrical / Polarization /
Complex Modulation 5989-6754EN
© Agilent Technologies, Inc. 2014
Published in USA, March 1, 2014
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