Agilent 81101A 50 MHz One-Channel Pulse Generator

Agilent 81101A
50 MHz One-Channel Pulse Generator
Data Sheet
Key Features
Agilent 81100 Family of
Pulse/Pattern Generators
The Agilent Technologies 81101A
pulse generator belongs to the 81100
family. All members have the same
programming and user interfaces
that are compatible with the wellestablished Agilent 8110A. Migration
is therefore easy and cost effective.
Signals for testing digital designs
and components
The 81101A generates all of the
standard pulses needed to test
current logic technologies (CMOS,
TTL, ECL, etc.);
• Variable pulse parameters.
• Can be triggered in syncrony.
Glitch-free timing changes
Now you can sweep your timing values
without the danger of spurious pulses
or dropouts that could cause measurement errors (applies to continuous
mode, values < 100 ms, consecutive
values between 0.5 and twice the
previous value).
Reliable measurements
The 81101A provides clean, accurate
pulses with excellent repeatability,
thus contributing to measurement
Easy to use
Features such as the clear graphical
display, autoset, help, store/recall,
preset TTL/ECL levels, selectable
units (such as current/voltage, width/
duty-cycle), and load compensation
ensure a high level of convenience.
Agilent 8110A user interface.
Variable transitions.
Up to10 Vpp (20 Vpp) into 50 Ω.
3.5 digits timing resolution, best
case 5 ps.
0.01% frequency accuracy.
Fully SCPI programmable.
Broad range of trigger and synchronization capabilities.
Dropout and glitch free change
of any timing parameters.
8.9 cm height, full rack width.
Graphical display.
Smooth integration into automated
test systems
The 81101A can be integrated easily
into all phases of test system development, such as planning, rack integration, and test program generation.
Test programs are 100% upwardly
compatible to the 81104A and 81110A,
ensuring that growth with future
needs is just as easy as exchanging
the instruments themselves. This
results in low integration costs, in
addition to low costs of ownership,
through proven hardware reliability.
Specifications describe the instrument’s warranted performance. Nonwarranted values are described as typical. All specifications apply after a
30-minute warm-up phase with 50 Ω source/load resistance and separate
channels. All specifications are valid from 0°C to 55°C ambient temperature.
Timing Characteristics
Measured at 50% amplitude at fastest transitions, in continuous mode,
and 50 Ω source impedance.
Agilent 81101A
Frequency range
1 mHz to 50 MHz
Timing resolution
3.5 digits, 5 ps best case
RMS jitter (period, width, delay)
With PLL
With VCO [1]
± 0.001% ± 15 ps
± 0.01% ± 15 ps
Period range
Accuracy with PLL
20 ns to 999.5 s
± 0.01% (± 5%) [1]
Width range
10.0 ns to (period - 10.0 ns)
± 5% ± 250 ps[2]
Additional variable delay range
Accuracy [3]
0 ns to (period - 20 ns)
± 5% ± 1 ns
Double pulse delay range
(width + 10.0 ns) to
(period - width - 10.0 ns)
± 5% ± 500 ps
Transition time range (10/90)
5 ns to 200 ms variable
± 10 % ± 200 ps
3% typ. for transitions > 100 ns
[1] If the startable oscillator (VCO) is used (PLL not active).
[2] Changing of amplitude may add 0.5 ns.
[3] Width accuracy specification is valid up to 5.5 Vpp amplitude. Above this amplitude, the width will typically
increase up to 300ps.
Burst Count: 2 to 65536 (single or
double pulses).
Delay: Delay, phase, or % of period.
Double pulse delay: Double pulse and
delay are mutually exclusive.
Duty cycle: Set between 0.1% and 95%
(subject to width limits; 99.9% with
Transition times: These can be entered
as leading/trailing edge or % of width.
Leading and trailing edges are independent within one of the following
overlapping segments (1:20 ratio):
5 ns - 20 ns, 10 ns - 200 ns,
100 ns - 2 µs, 1µs - 20 µs,
10 µs - 200 µs, 100 µs - 2 ms,
1 ms - 20 ms, 10 ms - 200 ms.
Output timing fidelity: Period, delay, and
width are continuously variable without any output glitches or dropouts.
Repeatability: Is typically four times
better than accuracy.
Level/Pulse Performance Characteristics
Level specifications are valid after a 30 ns typical settling time.
Agilent 81101A
50 Ω into 50 Ω
1 kΩ into 50 Ω
100 mVpp to 10.0 Vpp
200 mVpp to 20.0 Vpp
Level window
50 Ω into 50 Ω
1 kΩ into 50 Ω
-10.0 V to +10.0 V
-20.0 V to +20.0 V
50 Ω into 50 Ω
1 kΩ into 50 Ω
± (3% + 75 mV)
± (3% + 150 mV) [1]
50 Ω into 50 Ω
1 kΩ into 50 Ω
10 mV
20 mV
Output connectors
BNC single-ended
Source Impedance
Selectable 50 Ω or 1 kΩ
Typ. ± 1%
Max. external voltage
± 24 V
Short circuit current
±400 mA max.
Base line noise
10 mV RMS typ.
± 5% of amplitude ± 20 mV
[1] In ±19 V level window.
Level parameters:
Can be entered as voltage or current,
as high and low level, or as offset and
Load compensation:
The actual load value can be entered
(for loads ≠ 50 Ω) to display actual
output values.
Relays connect/disconnect output
Programmable high and low levels
can be limited to protect the deviceunder-test.
Trigger Modes
Inputs and Outputs
Continuous pulses, double pulses,
or bursts (single or double pulses).
External triggered:
Each active input transition (rising,
falling or both) generates a single or
double pulse or burst.
External gated:
The active input level (high or low)
enables pulses, double pulses, or
bursts. The last single/double pulse
or burst is always completed.
External width:
The pulse shape can be recovered,
while period and width of an external
input signal are maintained. Levels
and transitions can be set.
Simulates an external input signal.
Internal triggered:
Internal PLL replaces an external
trigger source.
Clock input/PLL reference and external
input: One input (BNC connector at
rear panel) is used for clock input or
alternatively for the PLL.
PLL Reference: The internal PLL is
locked to an external 5 MHz or 10 MHz
reference frequency.
Clock input: The output period is determined by the signal at CLK input
Ext. input: Used for trigger, gate, or
external width.
Input impedance: 50 Ω/10 kΩ selectable
Threshold: -10 V to +10 V
Max. input voltage: ±15 Vpp
Sensitivity: ≤300 mVpp typical
Input transitions: <100 ns
Frequency: Dc to 50 MHz
Minimum pulsewidth: 10 ns
Strobe output and trigger output
User Interface
Strobe: Marks the beginning of each
Trigger format: One pulse per period
with 50% duty cycle typical
External mode: 9 ns typical
Level: TTL or ECL selectable
Output impedance: 50 Ω typical
Max. external voltage: -2 V/+7 V
Transition times: 1.0 ns typical for TTL,
600 ps typical for ECL
Overprogramming: Values can be
entered, exceeding the specified
range, to fully exploit the hardware
Setting check: Warning messages
indicate potentially conflicting parameters due to inaccuracy. Error messages indicate conflicting parameters.
Help key: Displays a context sensitive
Autoset key: Resolves all timing
Non-volatile memory: The current
setting is saved on power-down. Up
to nine user settings and one fixed
default setting are stored in the
Memory card: 99 settings can be stored
on a 1 MB PCMCIA card (MS-DOS).
Typical delay times Agilent 81101A
Instrument mode
Typical value
External width
8.5 ns
22.5 ns
All other modes
12.0 ns
29 ns
17 ns
Remote Control: Operates according to
IEEE standard 488.2, 1987 and SCPI
Function Code: SH1,AH1,T6,L4,SR1,
Programming times: All checks and
display off
ASCII command
Typical exec. time
One parameter or mode
30 ms typical
Recall setting
250 ms typical
Operating temperature: 0°C to +55°C
Storage temperature: -40°C to +70°C
Humidity: 95% r.h. up to 40°C ambient
EMC: Conforms to EN50082-1, EN
55011, Class B
Noise emission: 5.7 bel typical
Battery: Lithium CR2477-N
Safety: IEC1010, CSA1010
Power requirements:
100-240 Volts ac, ± 10%, 50-60 Hz
100-120 Volts ac, ± 10%, 400 Hz
Power consumption: 300 VA max.
Max. dimensions (H x W x D):
89 mm x 426 mm x 521 mm
Weight: 9.2 kg net, 13.8 kg shipping
Recalibration period: One year
Warranty: Three years standard
Ordering Information
Each Agilent 81101A includes just one output channel
(in comparison to the other models of the 81100A family).
The English Quick Start Guide (81101-91010) and Reference Guide
(81101-91011) are supplied with each instrument for all configurations.
A memory card is not included.
81101A 50 MHz one-channel Pulse Generator, 10V
Opt UN2 Rear Panel Connectors (instead of front panel)
Opt 1CP Rack Mount and Handle Kit (5063-9219)
Opt 1CN Handle Kit (5063-9226)
Opt 1CM Rack Mount Kit (5063-9212)
Opt 1CR Rack Slide Kit (1494-0059)
Opt UFJ 1 MB SRAM Memory Card (0950-3380)
15104A Pulse Adder/Splitter
Quick Start Guide language options
Opt ABF French Guide (81101-91210)
Opt ABJ Japanese Guide (81101-91510)
Opt AB0 Taiwan Chinese Guide (81101-91610)
Opt AB1 Korean Guide (81101-91710)
Opt AB2 Chinese Guide (81101-91810)
Additional documentation options
Opt 0BW Service Manual (81101-91021)
81101-91031 Service Documentation (Component Level)
Support Options
Opt 1BP MIL Std. 45662A Calibration with Test Data
Opt UK6 Commercial cal. certificate
Opt W32 3 Year Customer Return Calibration Coverage
Opt W34 3 Year MIL Calibration Service
Opt W50 5 Year Customer Return Repair Coverage
Opt W52 5 Year Customer Return Calibration Coverage
Opt W54 5 Year Customer Return Calibration Coverage
Related Literature
Pub. Number
Agilent Family of Pulse/Pattern Generators, brochure
Agilent 81100 Family of Pulse/Pattern Generators,
data sheet
Agilent 8110A Pulse/Pattern Generator, data sheet
Agilent 8114A 100V/2A Programmable Pulse Generator,
data sheet
Agilent 8133A 3 GHz Pulse Generator, data sheet
Radar Distance Test to Airbourne Planes, product note
The Dual Clock Gbit Chip Test, product note
Magneto-Optical Disk Drive Research, product note
Simulation of Jittering Synchronization Signals
for Video Interfaces, product note
Electronic Functional Test of the Consolidated Automated
Support System (CASS), case study
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