Advanced Test Equipment Rentals
®
Advanced Test Equipment Rentals
E stablished 1981
www.atecorp.com 800-404-ATEC (2832)
Audio Analyzer UPD
Tomorrow’s digital world today
• For all interfaces:
analog, digital and combined
• Programmable digital
interfaces
• Real dual-channel measurements
• Maximum dynamic range
• Versatile functions
• Wide bandwidth
• Compact unit with integrated PC
• FFT analysis
• Automatic test sequences
• Jitter analysis
• Extensive online help
• Interface tester
• Freely programmable filters
Audio analysis today and tomorrow
Analog and digital
measurement is not limited to a few spe-
Superior analysis concept
cial cases.
Audio signal processing is nowadays
UPD performs all measurements using
no longer conceivable without the use
The generator is every bit as versatile:
digital signal processing. Analog sig-
of digital techniques. Yet, analog tech-
it supplies any conceivable signal from
nals to be tested undergo elaborate pre-
nology continues to exist and under-
sinewave and noise signals through to
processing before they are digitized
goes constant improvement. State-of-
multi-sinewave signals comprising up to
and measured by means of digital rou-
the-art measuring instruments must
7400 frequencies.
tines. For example, in THD measure-
therefore be able to handle both analog and digital signal processing.
ments, the fundamental is attenuated by
In addition to all this, UPD features excel-
means of a notch filter and the residual
lent technical data: analog sinewave
signal amplified by 30 dB before it is
Audio Analyzer UPD performs practical-
generation with harmonics of
digitized. In this way, the dynamic
ly all types of audio measurement, from
typ. −120 dB, spectrum displays with a
range can be extended beyond that of-
frequency response measurements
noise floor below −140 dB for analog
fered by the internal converter. This pro-
through to externally controlled sweeps
and −160 dB for digital interfaces, FFT
vides sufficient margin for measuring
with reference traces, determination of
with a maximum frequency resolution of
converters of the future, which will be
3rd-order difference frequency distor-
0.02 Hz, etc.
technically more advanced than those of
tion, spectral display of demodulated
present-day technology (see graph on
wow and flutter signals, etc. In contrast
UPD provides signal monitoring via
the right). This concept guarantees per-
to many other audio analyzers, UPD is
loudspeaker, jitter measurements on
formance and flexibility by far superior
capable of performing real dual-chan-
digital audio signals, resynchronization
to instruments providing purely analog
nel measurements in the audio-frequen-
of jittered digital audio signals by means
or digital measurements.
cy range, ie there is no need for switch-
of a jitter-free clock signal, and many
over between two inputs and this type of
more features.
2
Audio Analyzer UPD
The above measurement concept offers
• In intermodulation measurements,
many other advantages over merely an-
spurious components are mea-
alog concepts:
sured selectively for all frequencies
Nobody can accurately predict today
in accordance with the mathemati-
what effects future developments in dig-
cal formula of the relevant test
ital technology will have on the audio
digital interfaces are identical. This
standards. This procedure avoids
world and what will be the resulting test
allows, for instance, the direct
the measurement of adjacent com-
requirements. This is however no prob-
comparison of IMD measurements
ponents along with the spuria,
lem for Audio Analyzer UPD. Since all
made ahead of and after a con-
which is usually inevitable with an-
test functions are implemented digitally,
verter
alog test methods
UPD can be adapted to changing
• The test routines for analog and
A future-proof investment
requirements by simply loading the
necessary software – and this also for
Performance
the analog interfaces.
Digital
analysis
and analog
preprocessing
And one more thing: Rohde & Schwarz
is the only manufacturer to equip its
audio analyzers with 32-bit floating-
Digital
measurements
Analog
measurements
point signal processors throughout,
thus offering plenty of reserves beyond
the limits of today’s common 24-bit
technology.
A competent partner
The name of Rohde & Schwarz stands
for excellent quality – thousands of
The intelligent combination of analog and digital measurement
techniques paves the way for future applications
audio analyzers have proven records
at satisfied customers and have been in
• All test functions are available both
• Measurement speed is as a rule
operation successfully for many years.
on the analog and the digital inter-
higher than with analog techniques
faces. This makes it possible to
since digital test routines can
As a competent partner we shall be
measure at any point of a common
adapt their speed to the input fre-
pleased to advise you on the optimum
analog and digital transmission
quency. And – last but not least:
use of our instruments. Our representa-
path. Only this ensures efficient
• Operation is the same for the ana-
tives are available for you all over the
log and the digital interfaces. A
world, and our customer support center
feature that should not be under-
and application engineers in Munich
estimated
help you find the right solution to your
and complete testing
• The filters, too, are implemented
digitally, resulting in an infinite
number of filters as it were, and
measurement tasks. In addition, you
this also for measurements on ana-
will find a wealth of proposals and
log interfaces. Simply choose the
solutions in our application notes and
type of filter (eg highpass), cutoff
software.
frequency and attenuation: that’s
all you have to do to loop a new
filter into the test path
Certified Quality System
ISO 9001
DQS REG. NO 1954-04
Naturally, Rohde & Schwarz instruments are certified in compliance with
ISO 9001 and ISO 14001.
Audio Analyzer UPD
3
An allrounder
Test signals – as you like it
• Squarewave
as an ideal signal for measuring
The generators of UPD supply an
extremely wide variety of analog and
Fig. 1: Automatic marking of harmonics in THD+N measurements makes nonharmonics visible at a glance
digital test signals:
tion measurement (DIM)
consisting of a squarewave and a
• Sinewaves
for level and harmonic distortion
measurements. The signal can be
sinewave signal with a level ratio
of 4:1
• Noise
applied to an equalizer with user-
with a variety of amplitude proba-
selectable nominal frequency
bility distributions, eg for acoustic
response, eg for compensating the
measurements; crest factor can be
frequency response of the test
assembly
• Two-tone signal
for modulation distortion analysis.
Various amplitude ratios can be
Fig. 2: In THD measurements, single harmonics, all harmonics or
any combination of harmonics can be measured
the transient response of a DUT
• Signal for dynamic intermodula-
selected and the frequencies are
continuously adjustable
• Difference tone signal
set
• Arbitrary waveforms
for generating any voltage curve
of up to 16k points
• AM and FM
for sinewave signals
• DC
also with sweep function
for intermodulation measurements
with continuous setting of both
Signals can be generated with an
frequencies
offset. Moreover, digital audio signals
• Multitone signal
comprising up to 17 sinewaves of
can be dithered with adjustable level
and selectable amplitude distribution.
any frequency and with the same
or different amplitude; setting the
phase is also possible
Versatile measurement functions
• Sine burst signal
Fig. 3: The waveform function displays the test signal in the time
domain. The example shows a sinewave burst
with adjustable interval and on-
UPD offers a wealth of measurement
time as well as programmable low
functions both for analog and digital
level, eg for testing AGCs
interfaces.
• Sine2 burst
also with adjustable interval and
on-time, eg for testing rms rectifier
with rms, peak or quasi-peak
circuits
weighting; high measurement
• Special multitone signal
4
Audio Analyzer UPD
speeds due to automatic adapta-
comprising up to 7400 frequencies
tion of integration times to input
with selectable amplitude distribu-
signal
tion. The frequency spacing can be
Fig. 4: The transient characteristics of an AGC play an important
role in testing hearing aids or automatic volume control on tape
recorders
• Level or S/N
• Selective level
linked to the resolution used for the
The center frequency of the band-
fast Fourier transform, thus en-
pass filter can be swept or coupled
abling rapid and precise single-
to the generator frequency, to the
shot measurements of the frequen-
frequencies of a multitone signal
cy response of a DUT
(eg for fast frequency response
measurements) or to the input signal
• SINAD or THD+N
• Dynamic intermodulation
• Crosstalk
• Waveform function
The sum of all harmonics and noise
measurement
is measured (Fig. 1)
on the products specified by
for representing the test signal in the
DIN-IEC
time domain (Fig. 3). Waveforms
• Total harmonic distortion (THD)
Individual harmonics, all the har-
• Wow and flutter
can be smoothed by interpolation.
monics or any combination of har-
to DIN-IEC, NAB, JIS or the
Slow sequences can be displayed
monics can be measured (Fig. 2)
2-sigma method to DIN-IEC where
compressed, eg for analyzing the
the demodulated-signal spectrum is
transient response of compander or
also displayed
AGC circuits (Fig. 4)
• Modulation distortion
to DIN-IEC 268-3; 2nd and 3rd
order intermodulation is measured
• Intermodulation
using the difference tone method.
• DC voltage
• Coherence and transfer functions
• Frequency, phase and group delay
for determining the transfer charac-
• Polarity
teristics of complex test signals
2nd and 3rd order intermodulation
signal paths are checked for
is measured
reversed polarity
Tests on hi-fi components call for increasingly complex measurement techniques. Results
obtained in the test lab must be verified in production, where as a rule not the whole
range of test functions is needed. Audio Analyzer UPD and its „little brother“ UPL complement each other. The operating concept of the two units based on the same
IEC/IEEE-bus commands is identical, so there is no problem using them jointly
Audio Analyzer UPD
5
Fig. 5: FFT spectrum of two-tone signal shown on full screen
Spectrum analysis
A variety of sweep functions
With its FFT analyzer, UPD is also
For continuous variation of the test
capable of spectrum analysis. The
signals, UPD offers amplitude and fre-
number of samples for fast Fourier
quency sweeps and for bursts addition-
transform can be selected between
ally sweeps of interval and on-time.
256 and 16k in binary steps (Fig. 5). A
Sweeps are defined either by means of
special feature is zoom FFT. The signal
a table or via parameters such as start
to be measured is digitally prepro-
value, number of steps, linear/ log step-
cessed to increase the frequency resolu-
ping or time interval. It is also possible
tion by a factor of 2 to 256 over a
to sweep two variables simultaneously.
selectable range. In this way, a maximum resolution of 0.02 Hz is attained.
In measurements of external signals,
It should be emphasized that this is not
these can be used for analyzer sweeps
just a scale expansion but the measure-
(external sweeps). Many different start
ment is really made at a higher resolu-
conditions can be set, allowing mea-
tion (Fig. 6).
surements to be triggered by a variety
of events. Results will be stable even for
DUTs with unknown or unstable tran-
Programmable filters
sient response thanks to the settling
function.
Fig. 6: With the zoom FFT function, sidebands spaced only a
few hertz from the signal can be displayed
The filters of UPD are software-implemented so that the user can define any
number of filters. The most common
weighting filters are provided as
standard. Further filters can be programmed in a few seconds by entering the type (lowpass, highpass, bandpass, bandstop, notch, third octave or
octave), frequency and attenuation
(Fig. 7). The instrument’s open architecture shows its strength in particular
where special requirements have to be
met: special filters can be imple-
Fig. 7: Filters can be defined by entering just a few parameters
mented using commercial filter design
programs. The data are transferred to
UPD and the created filter is looped
into the signal path.
Fig. 8: Tolerance curves enable fast go/nogo tests
6
Audio Analyzer UPD
All-in package
Audio Analyzer UPD is a compact unit
instrument has specified EMC charac-
with an integrated controller. It avoids
teristics which also include the internal
• Postprocessing of results directly in
the disadvantages of external PC con-
PC. In contrast to conventional PCs,
trol, which is found in other audio ana-
UPD features elaborate screening such
data formats, making it easy to im-
lyzers.
as magnetically shielded power trans-
port graphics into documents, for
UPD using standard software
• All results available in the common
formers and coated filter pane in front
example
of the display.
• Easy loading of function and soft-
as keyboard, monitor or other PC
And a real boon: the price of UPD
• Automatic test sequences and mea-
peripherals.
includes the internal PC.
UPD is supplied ready for use. Installa-
• Built-in hard disk and disk drive
tion of programs with built-in pro-
tion is nothing more than unpacking
• Connectors for keyboard, mouse,
gram generator
The instrument is easy to transport as it
ware extensions via floppy disk
requires no external equipment such
surement programs with universal
sequence controller. Easy genera-
the unit and switching it on for starting
monitor, printer and plotter
• Centronics interface for connecting
the measurement. The user is not bur-
printer or network
dened with problems that cropped up
• Drivers for commercial printers are
in the past with the installation of inter-
supplied as standard
face cards or PC software.
• Remote control via IEC/IEEE bus
With audio analyzers controlled from
an external PC, interference may be
radiated from the PC, monitor or interface connections, which distorts measurement results. Not so with UPD: the
Analog
preprocessing
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High speed
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Digital
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Block diagram of UPD
Digital
signal
generation
AES/EBU
option
Analyzers
Analog
output
Low
distortion
generator
(option)
Generators
Audio
monitor
(option)
3 1/2"
floppy
drive
Hard disk
I/O interface
Centronics
RS-232
Keyboard
RS-232
= AT slot
Ext. monitor
(optional)
IEC/IEEE bus
(option)
(optional)
Audio Analyzer UPD
7
Interfaces, protocol analysis, jitter
Analog interfaces
• Balanced inputs and outputs with
Fig. 9: Individual interference components can easily be found
with the aid of the jitter spectrum
• The format of the generated channel status data may be profession-
high common-mode rejection and
al or consumer irrespective of the
various impedances commonly
selected interface
used in the studio. Measurements
• The clock rates of the analyzer and
can be made on lines with phantom
generator are independent of each
feed
other. This allows measurements on
• Unbalanced inputs and outputs,
floating (eg to prevent hum loops)
sample rate converters
• The word length can be selected
• The generator outputs can be inter-
between 8 and 24 bits independ-
nally connected to the analyzer
ently for generator and analyzer
inputs so that different types of
measurement can be made without
the need for changing the cabling
Programmable digital audio interfaces
• Parallel inputs and outputs for conFig. 10: Display of jitter signal in time domain
necting modules or converters with
parallel interface
• Serial inputs and outputs for adapting modules with a non-standard
serial interface or audio chips. This
interface is user-programmable, ie
by selecting the word length, clock
polarity, position of sync pulse, etc,
it can be matched to almost any
serial format, eg also to I2S bus
• Word lengths up to 32 bits with
max. 28 audio bits open up a
wide application range. Clock
Fig. 11: Complete measured-value tables can be output for all
functions
rates up to 1 MHz (word clock)
can be processed
Standardized digital audio interfaces
(option UPD-B2)
• Balanced (XLR), unbalanced (BNC)
and optical (TOSLINK) inputs and
outputs for connecting consumer
electronics and professional studio
equipment
Fig. 12: UPD generates and analyzes additional data in digital
data streams in line with all common standards. The data are
represented in binary form, as hexadecimal numbers, as ASCII
characters or evaluated in consumer or professional format
8
Audio Analyzer UPD
• Analysis of channel status and user
• The levels of the balanced and un-
data. The data are output in binary
balanced outputs are adjustable so
form, as hexadecimal numbers, as
that the sensitivity of digital audio
ASCII characters or, in the case of
inputs can be determined
channel status data, evaluated in
the professional or consumer format to AES 3 or IEC 958 (Fig. 12)
• Generation of channel status data, user data and validity bits.
Channel status data can be entered in binary form or via panel to
AES 3 or IEC 958 in the professional or consumer format
Digital components of various data formats and clock rates are the stock-in-trade of professional users. They call for a measuring instrument offering top performance at all interfaces
at high accuracy and over a wide dynamic range. Operation is identical for analog and
digital interfaces, which enhances operator convenience. Fast fault diagnosis is possible
by means of stored test routines, allowing the elimination of problems immediately before
transmission
• Any bits can be combined under a
symbolic name. In this way, data
input and representation can easily
be adapted to customer requirements
• Simultaneous measurement of
clock rate and display of interface
errors (such as parity error)
• Generation of parity and CRC
errors, etc, for testing input circuits
• An additional high-impedance
input permits measurements to be
performed without opening the
signal path
Jitter and interface tests
(option UPD-B22)
With this option, the physical parameters of digital audio interfaces can be
examined. UPD-B22 extends the
functions of option UPD-B2
Signal analysis:
• Measurement of jitter amplitude
and display of jitter signal in the
frequency and time domain
(Figs 9 and 10)
• UPD generates bit- or word-syn-
Signal generation:
• The clock of the output signal can
• A reference (XLR) input and a synchronization (BNC) input provid-
chronous sync signals that allow
be “jittered“ by superimposing a
ed on the rear panel allow the gen-
the accurate display of digital
sinewave or noise signal of vari-
erator to be synchronized to the
audio signals on an oscilloscope
able amplitude
digital audio reference signal to
(preamble, eye pattern, signal symmetry, superimposed noise, etc)
• Measurement of input pulse amplitude and sampling frequency
• Measurement of phase difference
between audio and reference input
signal
• Analysis of common-mode signal
of balanced input (frequency,
amplitude, spectrum, etc.)
• An input signal with jitter can be
output jitter-free
• A common-mode signal can be
superimposed on the balanced
output signal
• Long cables can be simulated by
means of a switchable cable
AES 11, word clock, video sync
signals (PAL, SECAM, NTSC) and
to 1024 kHz reference clocks
• Generation of variable clock
signals from 30 kHz to 52.5 kHz,
also for operating UPD-B2
• Adjustable pulse amplitude
simulator
• The phase shift between the digital
audio output and the reference output can be varied
Audio Analyzer UPD
9
Designed for convenience
Efficient online help
UPD offers a variety of help functions
to provide optimum support for the
user:
HELP function
HELP information in German or English can be called for each input field.
SHOW I/O key
If no results can be displayed, eg
because no input signal or an incorrect input signal is present, information on possible causes will appear
upon pressing SHOW I/O. Moreover, the input and output configuration will be displayed.
Info boxes
These highlighted boxes inform the
user of any incorrect settings.
A wealth of functions – yet easy to operate
Online help
The permissible range of values is
• Related functions and settings are
indicated for each menu item requir-
combined in panels that can be
ing the entry of a numerical value. This
called at a keystroke. Up to three
range takes into account any limita-
panels can be displayed at a time
tions resulting from related parame-
• The operator is not burdened with
ters, eg the sample rate in the case of
unnecessary information. Only the
measurements on digital interfaces.
parameters and settings needed
for a given application are dis-
• Uncomplicated entries: the user
simply needs to open a menu and
make an entry or selection
• Continuous status information on
generator, analyzer and sweep
• Rapid operating sequences through
the use of softkeys, eg for graphical
representations
Protection against illegal entries
played – the others are available
UPD will not accept entries outside
in the background. For example,
operation via mouse, external key-
the permissible range. An alarm tone
the sweep parameters are trans-
board or front panel. This choice
will be issued and the value changed
ferred to the generator panel and
makes sense since the working
to the permissible minimum or maxi-
displayed only when the sweep
space required by a mouse is not
mum value.
function is activated
• Fast access to frequently used in-
Audio Analyzer UPD
always available
• Short learning time thanks to an
strument setups and a comprehen-
easy-to-understand operating
sive library of standard measure-
concept treating analog and digital
ments simplify familiarization with
measurements in the same way
the instrument
10
• The user can choose between
Results at a glance
• Real-time display of results for one
or both channels and several test
functions
• Simultaneous display of frequency
and phase
• With graphics, results can be read
off with vertical and horizontal
cursors. Tolerance curves or stored
results can be added for comparison
• Sets of traces can be displayed,
stored and evaluated for both
channels
• Graphics modes range from traces
and bargraphs through spectrum
display to three-dimensional waterfalls
It is often the case that only a few
parameters need to be modified after
a measurement sequence has been
started. Therefore, entry lines can be
selected from the input panels for the
generator, analyzer, etc, by marking
them with a tick. They are then transferred to a status panel. The status
panel thus gives a summary of parameters for a measurement routine,
which offers the following advantages:
• Instrument settings can be displayed
together with graphical and numerical results
• All important information can be
printed on a single hardcopy
• Instrument settings can be modified
quickly without changing panels as
UPD can also be operated from the
status panel
Audio Analyzer UPD
11
Fast and efficient
High measurement speed
Use in production
• The use of FFT analysis provides a
decisive advantage especially in
In designing Audio Analyzer UPD, par-
Instruments to be used in production
the case of frequency response
ticular emphasis was placed on opti-
tests must satisfy a variety of require-
measurements, which are particu-
mizing the measurement speed of the
ments:
• High measurement speed is vital
• All operations involving elaborate
for achieving a high production
from the extensive use of digital
circuits, make for high availability
of the instrument
computing are carried out by digital
throughput. By making appropri-
signal processors. The PC is merely
ate use of the instrument functions,
used for control of the unit and
go/nogo decisions can be made
IEC/IEEE bus is a must in large-scale
display of results
already in the audio analyzer, thus
production systems. In the design of
reducing the run time of a DUT
Audio Analyzer UPD, special impor-
(Fig. 8)
tance was attached to data transfer
• UPD can perform even complex
test functions simultaneously on
• Remote-control capability via the
both channels with the built-in high-
• Two-channel measurements allow
via the IEC/IEEE bus. The logging
speed option UPD-B3. This feature
the simultaneous and thus time-
mode can be used to speed up the
alone reduces the time for stereo
saving determination of input and
generation of control programs for
measurements by 50% compared
output characteristics
the IEC/IEEE bus. With the program
with most analyzers available on
generator provided in UPD-K1, it is
the market
no longer necessary to look up IEC/
• The digital test routine adapts its
speed optimally to the input frequency. This enhances measurement speed especially in the case
of frequency sweeps
• UPD performs harmonic distortion
and IMD measurements using
patented, digital test procedures
that combine high accuracy with
high measurement speed
• Digital signal processing reduces
setting and transient times achievable with purely analog
instruments. These times are also
taken into account in the test routines, yielding stable measurements without the need for activating settling functions (these are
understood to be repeated measurements until results are within a
tolerance band)
• User interface tailored to the
requirements of a test, not of an
office environment
• Display windows not needed can
be switched off, which also cuts
down the processing time
12
larly time-critical
• Long calibration intervals, resulting
test system as a whole:
Audio Analyzer UPD
IEEE-bus commands
Options for further applications
Audio monitor
out a single line to be typed by the
The optional Audio Monitor UPD-B5
user. The program thus generated
Low distortion generator
adds a headphones output and a built-
does not just give the sequence of keys
The low distortion generator is essen-
in loudspeaker to UPD. During rms
to be pressed but contains the instruc-
tial for all applications requiring
measurements in the frequency range
tions in easy-to-read IEC/IEEE-bus
extremely pure analog signals or
up to 20 kHz, the input signal and the
syntax according to SCPI. BASIC com-
generation of an analog DIM signal.
filtered signal can be monitored at the
mands can then be used to modify the
Its inherent distortion is well below that
interfaces of the analog analyzer and
program, eg for branching or graphic
of the built-in universal generator
the AES/EBU option.
outputs.
UPD-B5 is also provided with four TTL
Complete application programs based
inputs and eight TTL outputs which can
on the universal sequence controller
AES/EBU interface
be used for instance for switching
are available to the user for measure-
This interface option (UPD-B2) con-
checkpoint selectors.
ments on CD players, tuners, etc.
the optical interfaces. An additional
IEC/IEEE-bus option
With the IEC/IEEE-bus option
signal processor on the PCB permits
IEC-625/IEEE-488 bus Interface
(UPD-B4) fitted, the universal sequence
also user bits, status bits, parity and
UPD-B4 enables remote control of UPD
controller can also be used for remote
CRC errors, etc, to be generated and
to IEC 625/IEEE 488. The employed
control of external IEC/IEEE-bus equip-
analyzed in addition to audio data.
commands largely meet SCPI stan-
ment. Moreover, programs generated
Input and display masks can be user-
dards.
on UPD can be transferred after slight
which already has excellent specifications.
tains the AES/EBU, the S/P DIF and
defined with the aid of configuration
modifications to an external controller
files for adapting the interface to any
for the remote control of UPD. This
protocol. Ready-made masks are
greatly facilitates the generation of
available for protocols to AES3 or con-
remote-control programs.
sumer format. The output level of the
interface can be programmed. An
Automatic line measurement
additional high-impedance input
Option UPD-K33 serves for automatic
enables measurements without open-
measurements of all relevant parame-
ing the signal path.
ters of broadcast links according to
ITU-T O.33. Generator and analyzer
Option UPD-B22 permits also the
are normally located at different sites.
physical parameters of the serial bit
They are synchronized with the aid of
stream of the digital audio interface to
FSK signals. The operator may utilize
be investigated (for details refer to
the standard sequences defined by
page 9).
ITU-T O.33 or prepare his own.
Universal sequence controller
High-speed option
This option (UPD-K1) allows measure-
Option UPD-K1is needed for the use of
UPD was designed for high measure-
ment sequences to be generated and
UPD-K33.
ment speed. For this reason all analog
executed, thus turning UPD into an
switching circuits are provided with
automatic test system. Programming of
two channels. Operations for the two
measurement sequences is greatly
measurement channels are calculated
facilitated by the built-in program gen-
in time multiplex. If higher measure-
erator:
ment speed is needed – eg in production – the optional High speed Exten-
Each manual control step is recorded
sion UPD-B3 can be used. With the
in the logging mode and translated
aid of this option digital processing
into a complete line of the sequence
too is performed in parallel for the two
program with correct syntax, ie test
channels.
sequences can be programmed with-
Audio Analyzer UPD
13
Specifications
Data without tolerances are typical values
Analog analyzers
Three analyzers differing in bandwidth, specifications and measurement
functions are available for analog measurements.
Analyzer
Frequency range
ANLG 22 kHz
2 Hz/10 Hz to 21.90 kHz
ANLG 100 kHz
20 Hz to 100 kHz
ANLG 300 kHz
50 Hz to 300 kHz
Voltage measurement ranges
5 dB steps for Vin >300 mV,
10 dB steps for Vin <300 mV
Measurement accuracy
±0.05 dB at 1 kHz (sine, rms)
Frequency response1)
20 Hz to 22 kHz
±0.03 dB
10 Hz to 20Hz
±0.15 dB
22 kHz to 50 kHz
±0.1 dB
50 kHz to 100 kHz
±0.2 dB
100 kHz to 300 kHz
±1.0 dB
Inputs
Integration time
AUTO FAST
AUTO
VALUE
Noise (600 Ω)
with A weighting filter
with CCIR unweighting filter
Filter
Spectrum
RMS value, selective
Bandwidth (–0.1 dB)
Selectivity
Frequency setting
Measurement accuracy
Balanced
Voltage range
Input impedance
Crosstalk attenuation
Common mode rejection (Vin <3 V)
Common mode voltage (VP)
Unbalanced
Voltage range
Input impedance
Crosstalk attenuation
Common mode rejection (Vin <3 V)
Common mode voltage (VP)
Generator output
2 independent channels
XLR connectors (female), floating
0.1 µV to 35 V (rms, sine)
300 Ω, 600 Ω, 20 kΩ ±0.5% each,
one value <20 kΩ specified by user
(ready for installation),
parallel 200 pF
>120 dB, frequency <22 kHz
>110 dB at 50 Hz,
>86 dB at 1 kHz, >60 dB at 16 kHz
max. 50 V (safety regulation),
protected by surge protector
2 independent channels
BNC connectors (female), floating/
grounded switchable
0.1 µV to 300 V (rms, sine)
1 MΩ | | 200pF
>120 dB, frequency <22 kHz
>110 dB at 50 Hz,
>86 dB at 1 kHz, >60 dB at 16 kHz
max. 50 V (safety regulation),
protected by surge protector
Peak value
Measurement
Measurement accuracy
Interval
Filters
Quasi-peak
Measurement, accuracy
Noise (600 Ω)
Filter
DC voltage
Voltage range
Measurement accuracy
Measurement range
±0.05 dB at 1 kHz, sine
±0.1 dB additional error
14
Relative to 1 kHz, sine, rms.
Additional error ±0.1 dB for voltages >60 V unbalanced (>10 V balanced)
and frequencies >50 kHz.
For analyzer ANLG 22 kHz with lower measurement limit 2 Hz
(min. freq. 2 Hz): ±0.03 dB from 10 Hz to 22 kHz, ±0.05 dB from 2 Hz to 10 Hz.
Audio Analyzer UPD
1%, 3%, 1/12 octave, 1/3 octave and
user-selectable fixed bandwidth,
minimum bandwidth 20 Hz
100 dB, bandpass or bandstop filter,
8th order filter, elliptical
– automatic to input signal
– coupled to generator
– fixed through entered value
– sweep in user-selectable range
±0.2 dB + ripple of filters
with analyzer ANLG 22 kHz only
peak max, peak min, peak-to-peak,
peak absolute
±0.2 dB at 1 kHz
20 ms to 10 s
weighting filters and user-definable filters, up to 3 filters combinable
with analyzer ANLG 22 kHz only
to CCIR 468-4
<8 µV with CCIR weighting filter
weighting and user-definable filters, up
to 3 filters combinable,
analog notch filter in addition
0 to ±300 V unbalanced
0 to ±35 V balanced
±(1.5% + 2 mV)
100 mV to 300 V (balanced 30 V),
10 dB steps
available for measurement functions
– rms, wideband
– peak
– quasi-peak
indication of S/N ratio in dB,
no post-FFT
FFT analysis
see FFT analyzer section
Total harmonic distortion (THD)
Fundamental
Frequency tuning
Weighted harmonics
1)
1 µV
<2 µV (typ. 1.6 µV)
weighting and user-definable filters, up
to 4 filters combinable
additional analog notch filter (dynamic
range expanded by up to 30 dB)
post-FFT of filtered signal
S/N measurement routine
each input switchable to any output,
input impedance: balanced 200 kΩ,
unbalanced 100 kΩ
Measurement functions
RMS value, wideband
Measurement accuracy
Measurement speed
AUTO
AUTO FAST
4.2 ms, at least 1 cycle
42 ms, at least 1 cycle
1 ms to 10 s
Measurement accuracy,
harmonics
<50 kHz
<100 kHz
<300 kHz
6 Hz to 110 kHz
– automatic to input signal
– coupled to generator
– fixed through entered value
any combination of d2 to d9,
up to max. 300 kHz
±0.5 dB
±0.7 dB
±1.5 dB
Inherent distortion1)
Analyzer ANLG 22 kHz
Fundamental >100 Hz
20 Hz to 100 Hz
10 Hz to 20 Hz
Analyzer ANLG 100 kHz
Fundamental 50 Hz to 20 kHz
20 kHz to 50 kHz
Analyzer ANLG 300 kHz
Fundamental 130 Hz to 20 kHz
20 kHz to 50 kHz
50 kHz to 110 kHz
Spectrum
THD+N and SINAD
Fundamental
Frequency tuning
Input voltage
Bandwidth
Measurement accuracy
Bandwidth <50 kHz
<100 kHz
<300 kHz
< –110 dB, typ. –115 dB
<–100 dB
<–96 dB
<–97 dB, typ. –105 dB
<–92 dB
<–97 dB, typ. –105 dB
<–92 dB
<–86 dB
bar chart showing signal and distortion
20 Hz to 110 kHz
– automatic to input signal
– coupled to generator
– fixed through entered value
>100 µV typ. with automatic tuning
upper and lower frequency limit selectable, one additional weighting filter
±0.5 dB
±0.7 dB
±1.5 dB
Inherent distortion2)
Analyzer ANLG 22 kHz
Bandwidth 20 Hz to 21.90 kHz typ. –110 dB at 1 kHz, 2.5 V
<–105 dB +2 µV
typ. –108 dB +1.5 µV 3)
Analyzer ANLG 100 kHz
Bandwidth 142 Hz to 22 kHz <–95 dB + 2.5 µV, typ. –100 dB +1.75 µV
142 Hz to 100 kHz <–88 dB + 5 µV, typ. –95 dB + 3.5 µV
Analyzer ANLG 300 kHz
Bandwidth 427 Hz to 22 kHz <–97 dB + 2.5 µV, typ. –100 dB +1.75 µV
427 Hz to 100 kHz <–90 dB + 5 µV, typ. –95 dB + 3.5 µV
427 Hz to 300 kHz <–85 dB + 10 µV, typ. –92 dB + 7 µV
Spectrum
post-FFT of filtered signal
Modulation factor (MOD DIST)
Measurement method
Frequency range lower frequency
upper frequency
Measurement accuracy
Inherent distortion5)
Upper frequency 4 to 15 kHz
15 to 20 kHz
Spectrum
1)
2)
3)
4)
5)
selective to DIN-IEC 268-3
30 to 1200 Hz
8xLF to 100 kHz4)
±0.50 dB
<–96 dB (–90 dB), typ. –103 dB
<–96 dB (–85 dB)
bar chart showing signal and distortion
Total inherent distortion of analyzer and generator (with option UPD-B1), analyzer
with dynamic mode precision >10 V: typ. 3 dB lower;
<0.5 V: sensitivity reduced by inherent noise
(typ. 0.25/1.25/2.5 µV with analyzers ANLG 22/100/300 kHz).
Total inherent distortion of analyzer and generator (with option UPD-B1), analyzer
with dynamic mode precision, fundamental <100 kHz.
At full-scale measurement range (<–100 dB + 2 µV with auto range).
<–100 dB +2 µV for fundamental<100 Hz.
<–100 dB for input voltage >5 V.
For upper frequency >20 kHz the bottom limit of the lower frequency is
reduced.
Input voltage >200 mV, typical values apply between 0.5 and 5 V.
Lower frequency >200 Hz, values in ( ) for lower frequency <200 Hz.
Dynamic mode precision; level ratio LF:UF = 4:1.
Difference frequency distortion (DFD)
Measurement method
Frequency range difference frequency
center frequency
Measurement accuracy
Inherent distortion7)
DFD d2
DFD d3
Spectrum
Dynamic intermodulation distortion
(DIM)
Measurement method
Test signal
Measurement accuracy
Inherent distortion8)
Spectrum
Wow and flutter
Measurement method
Weighting filter
OFF
ON
Measurement accuracy
Inherent noise
Spectrum
Time domain display (WAVEFORM)
Trigger
Trigger level
Standard mode
Trace length
Interpolation
Enhanced mode
Trace length
Compressed mode
selective to DIN-IEC 268-3 or 118
80 Hz to 1 kHz
200 Hz to 100 kHz6)
±0.50 dB, center frequency <20 kHz
<–115 dB, typ. –125 dB
<–96 dB, typ. –105 dB
bar chart showing signal and distortion
with analyzer ANLG 22 kHz only
selective weighting of all 9 interference
lines to DIN-IEC 268-3
square/sine 3.15 kHz/15 kHz
or 2.96 kHz/14 kHz,
frequency tolerance ±3%,
any square/sine amplitude ratio
(standard 4:1)
±1 dB
<–80 dB, typ. –90 dB
bar chart showing signal and distortion
with analyzer ANLG 22 kHz only
DIN-IEC, NAB, JIS,
2-sigma to IEC-386
highpass 0.5 Hz, bandwidth 600 Hz
bandpass 4 Hz to IEC-386
±3%
<0.0005% weighted
<0.001% unweighted
post-FFT of demodulated signal
rising/falling edge
–300 V to +300 V, interpolated between
samples
max. 7424 points
1, 2, 4, 8, 16, 32
single channel
max. 65530 points
2- to 1024-fold compression (envelope
for AGC measurement), with analyzer
ANLG 22 kHz only
Coherence and transfer function
Frequency range
Frequency resolution
Averaging
FFT length
with analyzer ANLG 22 kHz only
DC to 21.9 kHz
from 5.86 Hz
2 to 2048
256, 512, 1 k, 2 k, 4 k, 8 k points
Frequency
Frequency range
Accuracy
Input voltage
2 Hz to 300 kHz
±50 ppm
>5mV
6)
7)
8)
For center frequency >20 kHz the bottom limit of the difference frequency is
reduced.
Input voltage >200 mV, typical values apply between 0.5 V and 5 V,
dynamic mode precision (at DFD d2), center frequeny 5 kHz to 20 kHz.
Input voltage >200 mV, typical values apply between 0.5 V and 5 V. Total
inherent distortion of analyzer and generator at full-scale measurement range.
Audio Analyzer UPD
15
Phase
Accuracy
at 1 kHz
20 Hz to 25 kHz1)
10 Hz to 20 Hz
25 kHz to 100 kHz
Input voltage
Display range
Group delay
Frequency range
Accuracy in seconds
Polarity test
Measurement
Display
Signals
±0.1° typ.
±0.4°
±1.0°
±1.75°
> 15 mV, both signals of almost identical level
±180° or 0 to 360°
20 Hz to 100 kHz
∆ϕ/(∆f x 360),
where ∆ϕ = phase accuracy
in °, ∆f = frequency step
polarity of unsymmetrical input signal
+POL, –POL
Analog generators
A 20-bit D/A converter is used for analog signal generation. Two generators
differing in frequency ranges, specifications and test signals are available:
Generator
Frequency range Sample Rate
ANLG 25 kHz
2 Hz to 25 kHz 96 kHz
ANLG110 kHz
2 Hz to 110 kHz 384 kHz
The characteristics of the basic generator can be improved and extended with
a low-distortion RC oscillator (Low Distortion Generator UPD-B1):
—sine with reduced distortion
—improved intermodulation signals DFD and MODDIST
—signal generation for dynamic intermodulation measurement DIM
Outputs
Balanced
Voltage
Crosstalk attenuation
Source impedance
Load impedance
Output balance
(output floating)
Unbalanced
Voltage
Crosstalk attenuation
Source impedance
Load impedance
XLR connectors (male), 2 channels,
floating/grounded switchable,
short-circuit-proof;
external feed <120 mA
0.1 mV to 24 V (rms, sine, open-circuit)
>117 dB, frequency <20 kHz
10 Ω
30 Ω ± 0.5Ω,
200 Ω, 600 Ω, ± 0.5% in each case,
one user-selectable value >30 Ω ,
ready for installation
>400 Ω (incl. source impedance)
>80 dB at 1 kHz,
>60 dB at 20 kHz
BNC connectors (female), 2 channels,
floating/grounded switchable,
short-circuit-proof;
external feed <120 mA
0.1 mV to 12 V (rms, sine, open-circuit)
>117 dB, frequency <20 kHz
5Ω
15 Ω ± 0.5Ω,
one user-selectable value > 15 Ω, ready
for installation
>200 Ω
Sine
Frequency range
Generator ANLG 25 kHz
2 Hz to 25 kHz
Generator ANLG 110 kHz
2 Hz to 110 kHz
Frequency accuracy
±50 ppm
Level accuracy
±0.1 dB at 1 kHz
Frequency response (ref. to1 kHz)
20 Hz to 20 kHz
±0.05 dB
2 Hz to 110 kHz
±0.1 dB
Inherent distortion THD+N
Generator ANLG 25 kHz, fundamental 20 Hz to 25 kHz
Measurement bandwidth
20 Hz to 22 kHz
<–92 dB, typ. –96 dB
20 Hz to 100 kHz
<–87 dB
Generator ANLG 110 kHz, fundamental 20 Hz to 100 kHz
Measurement bandwidth
20 Hz to 22 kHz
<–94 dB, typ. –98 dB
20 Hz to 100 kHz
<–80 dB
Sweep parameters
frequency, level
Sine (with low distortion generator option)
Frequency range
2 Hz to 110 kHz
Frequency accuracy
PRECISION
±0.1%
FAST
±0.5% at 15°C to 30°C
±0.75% at 5°C to 45°C
Level accuracy
±0.1 dB at 1 kHz
Frequency response (ref. to 1 kHz)
20 Hz to 20 kHz
±0.05 dB
10 Hz to 110 kHz
±0.1 dB
Harmonics
typ. <−120 dB (<−130 dB at 1 kHz),
measurement bandwidth
20 Hz to 20 kHz,
voltage 1 V to 5 V
Inherent distortion
THD
Fundamental 1 kHz, 1 V to 10 V <–125 dB typ.
20 Hz to 2 kHz
<–113 dB
2 kHz to 7 kHz
<–110 dB
7 kHz to 20 kHz
<–105 dB
20 kHz to 50 kHz <–92 dB
50 kHz to 100 kHz <–86 dB
Fundamental 1 kHz, 2.5 V
100 Hz to 20 kHz
20 Hz to 100 Hz
<100 kHz
<20 kHz
<100 kHz
Sweep parameters
MOD DIST
Frequency range lower frequency
upper frequency
Level ratio (LF:UF)
Level accuracy
Inherent distortion
Sweep parameters
16
±0.4° above 2 Hz, with analyzer ANLG 22 kHz and lower measurement limit
2 Hz (min. freq. 2 Hz).
Audio Analyzer UPD
Meas. bandw.
22 kHz
22 kHz
22 kHz
100 kHz
300 kHz
300 kHz
for measuring the modulation distortion
30 Hz to 2.5 kHz
8xLF to 110 kHz
(max. 25 kHz with ANLG 25 kHz)
selectable from 10:1 to 1:1
±0.5 dB
<–80 dB (typ. –90 dB)
upper frequency 4 kHz to 25 kHz,
level ratio LF:UF = 4:1
upper frequency, level
MOD DIST (with low distortion generator option)
Frequency range lower frequency 30 Hz to 500 Hz
upper frequency 4 kHz to 110 kHz
Level ratio (LF:UF)
selectable from 10:1 to 1:1
Level accuracy
±0.5 dB
2)
1)
THD+N2)
–110 dB typ.
<–105 dB +2 µV
<–100 dB +2 µV
<–90 dB +5 µV
<–88 dB +10 µV
<–85 dB +10 µV
frequency, level
Total inherent distortion of analyzer and generator, analyzer using dynamic
mode precision. When the low-impedance source resistors are used (unbalanced 5 Ω, balanced 10 Ω), the THD+N value in level range 0.6 V to 2.5 V
balanced (0.3 V to 1.25 V unbalanced) is reduced by typ. 3 dB because of
noise.
Inherent distortion1)
Upper frequency 4 kHz to 15 kHz <–96 dB (− 90 dB), typ. –103 dB
15 kHz to 20 kHz <–96 dB (− 85 dB)
Sweep parameters
upper frequency, level
Sine burst, sine2 burst
Burst time
Interval
Low level
DFD
Frequency range
Bandwidth
for measuring the difference tone
difference freq. 80 Hz to 1 kHz
center frequency 200 Hz to 109 kHz
(max. 24 kHz with ANLG 25 kHz)
Level accuracy
±0.5 dB
Inherent distortion2)
DFD d2
< –114 dB, typ.–120 dB
DFD d3
< –85 dB, typ. –95 dB
Sweep parameters
center frequency, level
DFD (with low distortion generator option)
Frequency range
Difference frequeny
80 Hz to 1 kHz
Center frequency
200 Hz to 109 kHz
Level accuracy
±0.5 dB
Inherent distortion3)
DFD d2
< –120 dB, typ.–125 dB
DFD d3
< –96 dB, typ. –105 dB
Sweep parameters
center frequency, level
DIM (only with option UPD-B1)
Waveform
Max. level (VPP)
Level accuracy
Inherent distortion4)
Sweep parameters
Multi-sine
Characteristics
Generator ANLG 25 kHz
Frequency range
Frequency spacing
Dynamic range
Generator ANLG 110 kHz
Frequency range
Frequency spacing
Dynamic range
Squarewave
Frequency range
Max. level (VPP)
Level accuracy
Rise time
Sweep parameters
1)
2)
3)
4)
for DIM measurements to DIN-IEC 268-3
(dynamic intermodulation distortion)
square/sine 3.15 kHz/15 kHz
or 2.96 kHz/14 kHz,
square/sine amplitude ratio 4:1.
bandwidth (3 dB) 30 kHz/100 kHz,
selectable
50 V (25 V unbalanced)
±0.5 dB
< –80 dB, typ.–90 dB
level
– 1 to 17 spectral lines
– level, frequency and phase selectable
for each line
– crest factor optimized to minimum
or selectable
5.86 Hz to 25 kHz
adjustable from 5.86 Hz with <0.01%
resolution or matching to FFT frequency
spacing
100 dB referred to total peak value
23.44 Hz to 110 kHz
adjustable from 23.44 Hz with <0.01%
resolution or matching to FFT frequency
spacing
80 dB referred to total peak value
with generator ANLG 25 kHz only
2 Hz to 10 kHz
40 V (20 V unbalanced)
±0.2 dB (rms)
1.5 µs
frequency, level
Output voltage >200 mV, typ. values apply from 0.5 V to 5 V.
Lower frequency >100 Hz, value in () for lower frequency <100 Hz.
Level ratio LF:UF = 4:1.
Center frequency 5 kHz to 20 kHz, DFD d2 –95 dB (typ.) with DC offset.
Output voltage >200 mV, typ. values apply from 0.5 V to 5 V.
DFD d3: total inherent distortion of analyzer and generator;
center frequency 5 kHz to 20 kHz.
Input voltage >200 mV, typ. values apply from 0.5 to 5 V. Total inherent distortion of analyzer and generator at full-scale measurement range.
Sweep parameters
Noise
Noise in time domain
Distribution
Noise in frequency domain
Frequency range
Generator ANLG 110 kHz
Generator ANLG 110 kHz
Frequency spacing
Distribution
Crest factor
Arbitrary waveform
Memory depth
Clock rate
Bandwidth
1 sample up to 60 s, 1-sample resolution
burst time up to 60 s, 1-sample res.
0 to burst level, absolute or relative to
burst level (0 with sine2 burst)
25 kHz/110 kHz with
generator ANLG 25 kHz/110 kHz
(elliptical filter)
burst frequency, level, time, interval
Gaussian, triangular, rectangular
5.86 Hz to 25 kHz
23.44 Hz to 110 kHz
adjustable from 5.86 Hz (above
23.44 Hz with ANLG 110 kHz) with
<0.01% resolution or matching to FFT
frequency spacing
white, pink, 1/3 octave, defined by file
optimized to minimum or selectable
loaded from file
max. 16384
96 kHz/384 kHz with generator
ANLG 25 kHz/110 kHz
25 kHz/110 kHz with generator
ANLG 25 kHz/110 kHz
(elliptical filter)
Polarity test signal
Sine2 burst with following
characteristics:
Frequency
On-time
Interval
1.2 kHz
1 cycle (0.8333 ms)
2 cycles (1.6667 ms)
FM signal
Carrier frequency
Modulation frequency
Modulation
with generator ANLG 25 kHz only
2 Hz to 25 kHz
1 mHz to 25 kHz
0 to 100%
AM signal
Carrier frequency
Modulation frequency
Modulation
with generator ANLG 25 kHz only
2 Hz to 25 kHz
1 mHz to 25 kHz
0 to 100%
DC voltage
Level range
with generator ANLG 25 kHz only
0 to ±10 V (±5 V unsymmetrical),
can be swept
±2%
Accuracy
DC offset5)
Accuracy
Residual offset
5)
with generator ANLG 25 kHz only
0 to ±10.0 V (±5 V unsymmetrical)
18-bit resolution
±2%
<1% of rms value of AC signal
(typ. <0.1%)
For all signals except squarewave and DIM, no DC offset for signal generation
with Low Dist ON. With DC offset the AC voltage swing will be reduced, specified inherent distortion values apply to DC offset = 0.
Audio Analyzer UPD
17
RMS value, selective
Bandwidth (–0.1 dB)
Digital analyzers
Three analyzers differing in bandwidth, specifications and measurement functions are available for digital measurements.
Analyzer
Frequency range
DIG 48 kHz
2 Hz/10 Hz to 21.90 kHz
DIG 192 kHz
10 Hz/100 Hz to 87 kHz
DIG 768 kHz
10 Hz/100 Hz to 350 kHz
With analyzers DIG 192 kHz and DIG 768 kHz the number of samples is limited to 96000. This reduces the lower limit frequency and the maximum filter
settling time. Frequency limits specified for the individual measurement functions apply to a sampling frequency of 48 kHz. Limits for other sampling frequencies are calculated according to the formula: fnew = f48 kHz x sampling rate/
48 kHz.
Maximum values for analyzer DIG 768 kHz are specified in [ ].
Inputs
Serial (audio)
Channels
Audio bits
Clock rate
Format
Balanced input
Impedance
Level (VPP)
Unbalanced input
Impedance
Level (VPP)
Optical input
Serial (universal)
Channels
Word length
Audio bits
Data format
Synchronization
Clock rate
Parallel
Channel 1/MUX
Channel 2
Word length
Audio bits
Synchronization
Clock rate
with option UPD-B2
1, 2 or both
8 to 24
32/44.1/48 kHz
professional and consumer format to
AES3 or IEC-958 as well as user-definable formats at all inputs
XLR connector (female), transformer
coupling
110 Ω, 10 kΩ, switchable
min. 200 mV,
max. 12 V into 110 Ω (24 V into 10 kΩ)
BNC, grounded
75 Ω
min. 100 mV, max. 5 V
TOSLINK
15-contact DSUB connector (male)
1 and/or 2 separate or multiplexed
8/16/24/32 bits
8 to 28 bit
MSB/LSB first
pos./neg. edge of bit clock and word
clock selectable,
position of word clock within word userselectable,
word select (MUX) low/high
100 Hz to 1 MHz (word clock)
37-contact DSUB connector (male)
channel 1 or channels 1 and 2
multiplexed
contained in option UPD-B3 (highspeed extension)
28 bits
8 to 28
word clock with pos./neg. edge,
word select (MUX) low/high
100 Hz to 1 MHz
Selectivity
Frequency setting
Measurement accuracy
Peak value
Measurement
Measurement accuracy
Interval
Filter
with analyzer DIG 48 kHz only
to CCIR 468-4
weighting and user-definable filters,
up to 3 filters combinable
S/N measurement routine
available for measurement functions:
– rms, wideband
– peak
– quasi-peak
indication of S/N ratio in dB,
no post-FFT
FFT analysis
see FFT analyzer section
Total harmonic distortion (THD)
Fundamental
Frequency tuning
Weighted harmonics
Measurement accuracy
Inherent distortion1)
Fundamental
42 Hz to 21.90 kHz
24 Hz to 42 Hz
12 Hz to 24 Hz
Spectrum
THD+N and SINAD
Fundamental
(all measurements at 24 bits, full scale)
RMS value, wideband
Measurement bandwidth
Measurement accuracy
AUTO FAST
AUTO
FIX
Integration time
AUTO FAST
AUTO
VALUE
Filter
Spectrum
Stopband range
up to 0.5 times the clock rate
Bandwidth
±0.1 dB
±0.01 dB
±0.001 dB
Measurement accuracy
Inherent distortion1)
Bandwidth 20 Hz to 21.90 kHz
Fundamental
28 Hz to 21.90 kHz
24 Hz to 28 Hz
20 Hz to 24 Hz
Spectrum
4.2 ms, at least 1 cycle
42 ms, at least 1 cycle
1 ms to 10 s
weighting and user-definable filters, up
to 4 filters combinable
post-FFT of filtered signal
1)
18
Audio Analyzer UPD
with analyzer DIG 48 kHz only
peak max, peak min, peak-to-peak,
peak absolute
±0.2 dB at 1 kHz
20 ms to 10 s
weighting and user-definable filters,
up to 3 filters combinable
Quasi-peak
Measurement, accuracy
Filter
Frequency tuning
Measurement functions
1%, 3%, 1/12 octave, 1/3 octave and
user-selectable fixed bandwidth,
min. bandwidth 20 Hz
100 dB, bandpass or bandstop filter,
8th order filter, elliptical
– automatic to input signal
– coupled to generator
– fixed through entered value
– sweep in user-selectable range
±0.2 dB + ripple of filters
6 Hz to 21.90 kHz [100 Hz to 350 kHz]
– automatic to input signal
– coupled to generator
– fixed through entered value
any combination of d2 to d9,
up to 21.90 kHz [350 kHz]
±0.1 dB
<–130 dB
<–112 dB
<–88 dB
bar chart showing signal and distortion
20 Hz to 21.90 kHz
[320 Hz to 350 kHz]
– automatic to input signal
– coupled to generator
– fixed through entered value
fundamental ±28 Hz,
but max. up to 1st harmonic
upper and lower frequency limit selectable, one additional weighting filter
±0.3 dB
<–126 dB
<–109 dB
<–96 dB
post-FFT of filtered signal
Total inherent distortion of analyzer and generator.
Modulation distortion (MOD DIST)
Measurement method
Frequency range lower frequency
upper frequency
Measurement accuracy
Inherent distortion2)
Level LF:UF 1:1
4:1
10:1
Spectrum
Difference frequency distortion (DFD)
Measurement method
Frequency range
Difference frequency
Center frequency
Measurement accuracy
Inherent distortion2) DFD d2
DFD d3
Spectrum
Dynamic intermodulation distortion
(DIM)
Measurement method
Test signal
Measurement accuracy
Inherent distortion2)
Spectrum
Wow and flutter
Measurement method
Weighting filter OFF
ON
Measurement accuracy
Inherent noise
Spectrum
Time domain display (WAVEFORM)
Trigger
Trigger level
Standard mode
Trace length
Interpolation
Enhanced mode
Word length
Compressed mode
Frequency3)
Frequency range
with rms value
with THD
with FFT, THD+N
Accuracy
Input signal
selective to DIN-IEC 268-3
30[400] Hz to 500 Hz1)
4 kHz1) to 21.25 kHz [348 kHz]
±0.2 dB
<–133 dB
<–123 dB
<–115 dB
bar chart showing signal and distortion
selective to DIN-IEC 268-3 or 118
80 Hz [500 Hz] to 2 kHz1)
200 Hz to 20.90 kHz [348 kHz]
±0.2 dB
<–130 dB
<–130 dB
bar chart showing signal and distortion
with analyzer DIG 48 kHz only
selective weighting of all 9 interference
lines to DIN-IEC 268-3
square/sine 3.15 kHz/15 kHz
or 2.96 kHz/14 kHz,
frequency tolerance ±3%,
any square/sine amplitude ratio
(standard 4:1)
±0.2 dB
<–125 dB
bar chart showing signal and distortion
with analyzer DIG 48 kHz only
DIN-IEC, NAB, JIS,
2-sigma to IEC-386
highpass 0.5 Hz, bandwidth 600 Hz
bandpass 4 Hz to IEC-386
±3%
<0.0003% weighted
<0.0008% unweighted
post-FFT of demodulated signal
rising/falling edge
–1 FS to +1 FS, interpolated between
samples
max. 7424 points
1, 2, 4, 8, 16, 32
single channel
max. 65530 points
2- to 1024-fold compression (envelope
for AGC measurement), with analyzer
DIG 48 kHz only
2 Hz to 21.90 kHz
6 Hz to 21.90 kHz
20 Hz to 20 kHz
typ. ±5 ppm
THD+N <–70 dB
>–80 dBFS
Phase4)
Accuracy
Display range
Group delay4)
Frequency range
Accuracy in seconds
Polarity test
Measurement
Display
3)
Fixed frequency independent of sampling rate.
Total inherent distortion of analyzer and generator.
Only with measurement functions RMS, THD, THD+N and FFT analysis.
polarity of unsymmetrical input signal
+POL, –POL
Three generators differing in frequency and test signals are available for digital
signal generation.
Generator
Frequency range
DIG 48 kHz
2 Hz to 21.90 kHz
DIG 192 kHz
2 Hz to 87 kHz
DIG 768 kHz
2 Hz to 350 kHz
Frequency limits indicated for the signals apply to a sampling rate of 48 kHz.
Frequency limits for other sampling rates are calculated according to the formula: fnew = f48 kHz x sampling rate/48 kHz.
Max. values for generator DIG 768 kHz are specified in [ ].
Outputs
Serial (audio)
Channels
Audio bits
Clock rate
Format
Balanced output
Impedance
Level (VPP into 110 Ω)
Accuracy
Unbalanced output
Impedance
Level (VPP into 75 Ω)
Accuracy
Optical output
Serial (universal)
Channels
Word length
Audio bits
Data format
Synchronization
Clock rate (word clock)
Parallel
Channel 1/MUX
Clock rate
2)
20 Hz to 20 kHz
∆ϕ/(∆f x 360),
where ∆ϕ = phase accuracy in °,
∆f = frequency step
Digital generators
Word length
Synchronization
1)
±0.1°, 20 Hz to 20 kHz
±180° or 0 to 360°
4)
with option UPD-B2
1, 2 or both
8 to 24
internal: 32 kHz, 44.1 kHz, 48 kHz or
synchronization to analyzer
external: synchronization to word clock
input (27 kHz to 55 kHz)
professional and consumer format to
AES 3 or IEC-958 as well as user-definable formats at all outputs
XLR connector (male), transformer
coupling
110 Ω, short-circuit-proof
20 mV to 5.1 V, in steps of 20 mV
±1 dB (rms)
BNC connector (female), transformer
coupling
75 Ω, short-circuit-proof
10 mV to 1.5 V, in steps of 10 mV
±1 dB (rms)
TOSLINK
15-contact DSUB connector (female)
1 and/or 2 separate or multiplexed
8/16/24/32 bits
8 to 28
MSB/LSB first
pos./neg. edge of bit clock and word
clock selectable,
position of word clock within word userselectable,
word select (MUX) low/high
internal: 32 kHz, 44.1 kHz, 48 kHz
and multiples thereof up to max.
768 kHz
external: 100 Hz to 768 kHz
37-contact DSUB connector (female)
channel 1 or channels 1 and 2
multiplexed
28 bits
word clock with pos./neg. edge,
word select (MUX) low/high
internal: 32 kHz, 44.1 kHz, 48 kHz
and multiples thereof up to max.
768 kHz
external: 100 Hz to 768 kHz
Only with FFT analysis at serial audio inputs (AES/EBU, S/P DIF or optical).
Audio Analyzer UPD
19
Sine burst, sine2 burst
Burst time4)
Interval4)
Low level
Signals
(All signals with 24 bits, full scale)
General characteristics
Level resolution
Audio bits
Dither1)
Distribution
Level
Frequeny accuracy
2–24
8 to 28 (8 to 24 at AES),
LSB rounded off
Frequency offset1)
DC offset
Gaussian, triangular, rectangular
2–24 FS to 1 FS
±50 ppm (internal clock),
±1 ppm ref. to clock rate
0 or +1000 ppm
0 to ±1 FS adjustable
Sine
Frequency range
Total harmonic distortion (THD)
Sweep parameters
2 Hz2) to 21.90 kHz [350 kHz]
<–133 dB
frequency, level
MOD DIST
Frequency range lower frequency
upper frequency
Level ratio (LF:UF)
Inherent distortion
Level LF:UF 1:1
4:1
10:1
Sweep parameters
for measuring the modulation distortion
30[50] Hz to 500 Hz2)
4 kHz2) to 21.90 kHz [350 kHz]
selectable from 10:1 to 1:1
DFD
Frequency range
Difference frequency
Center frequency
Inherent distortion3)
DFD d2
DFD d3
Sweep parameters
for measuring the difference tone
DIM
Waveform
Inherent distortion3)
Sweep parameters
Multi-sine
Characteristics
Frequency range
Frequency spacing
Dynamic range
Squarewave
Frequency
Sweep parameters
1)
2)
3)
20
<–133 dB
<–123 dB
<–115 dB
upper frequency, level
80 Hz [100 Hz] to 1 kHz2)
200 Hz2) to 20.90 kHz [350 kHz]
<–130 dB
<–130 dB
center frequency, level
for DIM measurement to DIN-IEC 268-3
(dynamic modulation distortion)
square/sine 3.15 kHz/15 kHz
or 2.96 kHz/14 kHz, square/sine
amplitude ratio 4:1
< –125 dB
level
– 1 to 17 spectral lines
– level, frequency and phase
selectable for each line
– crest factor optimized to minimum
or selectable
2.93 Hz to 21.90 kHz
[46.88 Hz to 350 kHz]
adjustable from 2.93 Hz [46.88 Hz]
with <0.01% resolution or matching to
FFT frequency spacing
>133 dBFS
2 Hz2) to 12 kHz [50 Hz to 192 kHz],
2-sample resolution
frequency, level
With signals sine, DFD and MOD DIST.
Dither not with generator DIG 768 kHz.
Fixed frequency independent of sampling rate.
Total inherent distortion of analyzer and generator.
Audio Analyzer UPD
Sweep parameters
Noise
Noise in time domain
Distribution
Noise in frequency domain
Frequency range
Frequency spacing
Distribution
Crest factor
1 sample up to 60 s
burst time up to 60 s
0 to burst level, absolute or relative to
burst level (0 with sine2 burst)
burst frequency, level, time, interval
not with generator DIG 768 kHz
Gaussian, triangular, rectangular
2.93 Hz to 21.90 kHz
[46.88 Hz to 350 kHz]
adjustable from 2.93 Hz [46.88 Hz]
with <0.01% resolution or matching to
FFT frequency spacing
white, pink, 1/3 octave, defined by file
optimized to minimum or selectable
Arbitrary waveform
Memory depth
Clock rate
loaded from file
max. 16384
sample rate of generator
Polarity test signal
Sine2 burst with following
characteristics:
Frequency
On-time
Interval
with generator DIG 48 kHz only
1.2 kHz2)
1 cycle
2 cycles
FM signal
Carrier frequency
Modulation frequency
Modulation
with generator DIG 48 kHz only
2 Hz2) to 21.90 kHz
1 mHz2) to 21.90 kHz
0 to 100%
AM signal
Carrier frequency
Modulation frequency
Modulation
with generator DIG 48 kHz only
2 Hz2) to 21.9 kHz
1 mHz2) to 21.9 kHz
0 to 100%
DC voltage
Level range
with generator DIG 48 kHz only
0 to ±1 FS, can be swept
Digital audio protocol (with option UPD-B2)
Generator
Validity bit
Error simulation
Channel status data
Local time code
CRC
User data
Analyzer
Display
Error indication
Error counter
Clock-rate measurement
4)
NONE, L, R, L+R
parity/block error/sequence error/
CRC error, correctly or with adjustable
error rate
mnemonic entry with user-definable
masks, predefined masks for professional and consumer format to AES3 or
IEC-958
automatic generation selectable
automatic generation selectable
loaded from file (max. 16384 byte) or
set to zero
– validity bit L and R
– change of status bits
– differences between L and R
block errors, sequence errors,
clock-rate errors, preamble errors
parity, CRC
50 ppm
1-sample resolution, duration max. 20 ms with generator DIG 768 kHz.
Channel status display
User bit display
user-definable mnemonic display of
data fields, predefined settings for professional and consumer format to AES3
or IEC-958.
binary and hexadecimal format
user-definable mnemonic display,
block-synchronized
FFT size
Window functions
Resolution
Zoom
Jitter and interface tester (option UPD-B22)
Averaging
256, 512, 1 k, 2 k, 4 k, 8 k points
(16 k with zoom factor 2)
rectangular, Hann, Blackman-Harris,
Rife-Vincent 1to 3, Hamming, flat top,
Kaiser (ß = 1 to 20)
from 0.023 Hz with zoom,
from 5.86 Hz without zoom
– 2 to 256 with ANLG 22 kHz and
DIG 48 kHz
– 2 to 16 with ANLG 100/300 kHz
– 2 to 8 with DIG 192/768 kHz
1 to 256, exponential and normal
For non-specified characteristics the data of UPD-B2 apply
Generator
Level (Vpp into 110 Ω)
Clock rate
Internal
External
Jitter injection
Waveform
Frequency range
Amplitude (peak-to-peak)
Common mode signal
Waveform
Frequency range
Amplitude (Vpp)
Phase (output to reference)
Cable simulator
Long cable
Short cable
Analyzer
Impedance
Amplitude (Vpp)
Sampling rate
Jitter measurement
Reclocking
Common mode test
Amplitude (Vpp)
Frequency
Spectrum
Phase (input to reference)
Sync output
0 to 8 V, in 240 steps, balanced,
0 to 2 V, unbalanced
continuously adjustable
between 30 kHz and 52.5 kHz and
synchronization to analyzer
30 kHz to 52.5 kHz, synchronization to
word clock input, video sync, DARS,
1024 kHz
sine, noise
10 Hz to 110 kHz
0 to 10 UI
for balanced output
sine
20 Hz to 110 kHz
0 to 20 V
adjustable between −64 and +64 UI
(corresp. to ±50% of frame)
100 m typical audio cable
typ. 30 ns rise time
110 Ω (bal.), 75 Ω (unbal.)
200 mV to 12 V (balanced)
100 mV to 5 V (unbalanced)
30 kHz to 52.5 kHz (phase, jitter and
common-mode measurement)
amplitude, frequency, spectrum
0 to 5 UI typ. for f<500 Hz, decreasing
to 0.5 UI for up to 50 kHz (at 48 kHz)
input signal available at reference output (rear of instrument) after removal of
jitter
at balanced input
0 to 30 V
20 Hz to 110 kHz
20 Hz to 110 kHz
−64 to +64 UI (corresp. to ±50%
of frame)
switchable to generator, REF generator,
audio input, REF input or reference PLL;
word clock or biphase clock selectable
Filter
For all analog and digital analyzers. Up to 4 filters can be combined as required. All filters are digital filters with a coefficient accuracy of 32 bit floating
point (exception: analog notch filter).
Weighting filter
Highpass, lowpass filters
limit frequencies (–0.1 dB) selectable,
stopband indicated
Bandpass, bandstop filters
passband (–0.1 dB) selectable,
stopband indicated
Notch filter
center frequency and width (–0.1 dB)
selectable, stopband indicated
Third octave and octave filters
center frequency selectable,
bandwidth (–0.1 dB) indicated
File-defined filters
any 8th order filter cascaded from
4 biquads, defined in the z plane by
poles/zeroes or coefficients
Analog notch filter
For measurements on signals with high S/N ratio, this filter improves the dynamic range of the analyzer by up to 30 dB to 140 dB for analyzer 22 kHz,
or 120 dB for analyzer 110 kHz/300 kHz (typical noise floor for FFT). The filter
is also used for measuring THD, THD+N and MOD DIST with dynamic mode
precision.
Characteristics
1)
2 Hz to 350 kHz
2 Hz to 300 kHz
>135 dB
120 dB/105 dB1)
115 dB/85 dB1)
–160 dB
–140 dB/110 dB1)
–120 dB/90 dB1)
A weighting
C message
CCITT
CCIR weighted, unweighted
CCIR ARM
deemphasis 50/15, 50, 75, J.17
rumble weighted, unweighted
DC noise highpass
IEC tuner
jitter weighted
User-definable filters
Design parameters:
8th order elliptical, type C (for highpass and lowpass filters also 4th order
selectable), passband ripple +0/–0.1 dB, stopband attenuation approx.
20 dB to 120 dB selectable in steps of approx. 10 dB (highpass and lowpass filters: stopband attenuation 40 dB to 120 dB).
FFT analyzer
Frequency range, digital
analog
Dynamic range
Digital
Analyzer ANLG 22 kHz
Analyzer ANLG 100/300 kHz
Noise floor
Digital
Analyzer ANLG 22 kHz
Analyzer ANLG 100/300 kHz
–
–
–
–
–
–
–
–
–
–
Frequency range
Frequency tuning
Stopband
Passband
available in analog analyzers
with measurement functions:
– rms, wideband
– rms, selective
– quasi-peak
– FFT analysis
10 Hz to 100 kHz center frequency (fc)
– automatic to input signal
– coupled to generator
– fixed through entered value
typ.>30 dB, fc ±0.5%
typ. –3 dB at 0.77 x fc and 1.3 x fc ,
typ. ±0.5 dB outside 0.5 x fc to 2 x fc
With / without analog notch filter.
Audio Analyzer UPD
21
Audio monitor/parallel I/O interface
(option UPD-B5)
Headphones connector
Output voltage (VP)
Output current (IP)
Source impedance
Recommended headphones
impedance
6.3 mm jack
max. 8 V
max. 50 mA
10 Ω, short-circuit-proof
Parallel I/O interface
Connector
for driving signal routing switchers
25-contact DSUB, female
Reference value (level):
Fixed value (entered or stored).
Current value of a channel or generator signal: permits direct measurement of
gain, linearity, channel difference, crosstalk. In sweep mode, traces (other
trace or loaded from file) can be used as a reference too.
Graphical display of results
Monitor
Display modes
600 Ω
Display functions
Sweep
Generator sweep
Parameters
Sweep
Stepping
Analyzer sweep
Parameters
Sweep
Trigger
Settling
frequency, level,
with bursts also interval and duration,
one- or two-dimensional
linear, logarithmic, tabular,
single, continuous, manual
– automatic after end of measurement
– time delay, fixed or loaded table
frequency or level
of input signal
single, continuous
– delayed (0 to 10 s) after input level or
input frequency variation, settling
function selectable
– time-controlled
for level, frequency, phase, distortion
measurements,
settling function: exponential, flat or averaging
Sweep speed
RMS measurement 20 Hz to 20 kHz, 30-point generator sweep, logarithmic
(frequency measurement switched off, Low Dist off).
with
AUTO FAST
1s
AUTO
2.5 s
Test reports
Functions
Printer driver
Plotter language
Interfaces
8.4" LCD, colour
– display of any sweep trace
– display of trace groups
– bargraph display with
min./max.values
– spectrum, also as waterfall display
– list of results
– bar charts for THD and
intermodulation measurements
– autoscale
– X-axis zoom
– full-screen and part-screen mode
– 2 vertical, 1 horizontal cursor line
– search function for max. values
– marker for harmonics (spectrum)
– user-labelling for graphs
– change of unit and scale also
possible for loaded traces
– screen copy to printer, plotter or
file (PCX, HPGL, Postscript)
– lists of results
– sweep lists
– tolerance curves
– list of out-of-tolerance values
– equalizer curves
supplied for approx. 130 printers
HP-GL
2 x RS-232, Centronics,
IEC 625 (option UPD-B4)
Storage function
–
–
–
–
–
–
Remote control
via IEC 625-2 (IEEE 488),
commands largely to SCPI
(option UPD-B4)
instrument settings
spectra
sweep results
sweep lists
tolerance curves
equalizer traces
Display of results
General data
Units
Level (analog)
V, dBu, dBV, W, dBm,
difference (∆), deviation (∆%) and ratio
(without dimension, %, dBr)
to reference value
Level (digital)
FS, %FS, dBFS, LSBs
deviation (∆%) or ratio (dBr) to reference value
Distortion
% or dB, referred to signal amplitude,
THD and THD+N in all variable level
units (absolute or relative to selectable
reference value)
Frequency
Hz, difference (∆), deviation (∆%) and
ratio (as quotient f/fref, 1/3 octave,
octave or decade) to reference value
(entered or stored, current generator
frequency)
Phase
°, rad, difference (∆) to reference
value (entered or stored)
22
Audio Analyzer UPD
Operating temperature range
Storage temperature range
Humidity
EMI
EMS
Power supply
Dimensions (W x H x D)
Weight
0 to +45°C
–20°C to +60°C
max. 85% for max. 60 days,
below 65% on average/year,
no condensation
EN 50081-1
EN 50082-1
100/120/220/230 V ±10%,
47 Hz to 63 Hz, 290 VA
435 mm x 236 mm x 475 mm
22 kg
Ordering information
Order designation
Audio Analyzer UPD
Accessories supplied
power cable, operating manual, backup system disks with
MS-DOS operating system and user manual,
backup program disk with operating and measurement
software
Options
Low Distortion Generator
AES/EBU Interface
Jitter and Interface Tester
High-Speed Extension
IEC-625/IEEE-488 Bus Interface
Audio Monitor
Universal Sequence Controller
Arbitrary Waveform Designer
Automatic Line Measurement
to ITU-T O.33
Recommended extras
19“ Adapter
Service manual
Service Kit
1030.7500.05
UPD-B1
UPD-B2
UPD-B22
UPD-B3
UPD-B4
UPD-B5
UPD-K1
UPD-K2
1078.2601.02
1031.2301.02
1078.6503.02
1031.2001.02
1031.2901.02
1031.5300.02
1031.4204.02
1031.4404.02
UPD-K33
1031.5500.02
ZZA-95
0396.4911.00
1030.7551.24
1031.3208.02
UPD-Z2
Audio Analyzer UPD
23
0800 (Bi itl/we)
Printed in Germany
PD 757.0006.24 ⋅ Audio Analyzer UPD ⋅ Trade names are trademarks of the owners ⋅ Subject to change ⋅ Data without tolerances: typical values
ROHDE&SCHWARZ GmbH & Co. KG ⋅ Muehldorfstrasse 15 ⋅ 81671 Munich, Germany ⋅ P.O.B. 8014 69 ⋅ 81614 Munich, Germany
Telephone +49894129-0 ⋅ www.rohde-schwarz.com ⋅ CustomerSupport: Tel. +491805124242, Fax +4989 4129-13777,
E-mail: [email protected]
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