Service Manuals, User Guides, Schematic Diagrams or docs for : LeCroy LECROY_9450
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9450A Portable, Dual-Channel
Digital Oscilloscope
Main Features
I 50K memory per channel
Automatic PASSIFAILtesting on
templates and parameters
Segmentable memories with trigger
point time stamps
FASTGLITCH trigger mode
Signal processing and FFT analysis
m Optional high speed memory card
D Unmatched display quality
TV trigger and XY display
The Ultimate Instrument
for Design and Test
The LeCroy 9450A combines high The 9450A is shown measuring a frequencyshitfkeyed signal. The FFT of the waveform is
shown in the lower trace, indicating peaks at 1 MHz and 1.5 MHz.
bandwidth, fast sampling rates, high
fidelity, extensive trigger capabilities and
signal processing. Aimed at meeting the
demands of researchers and engineers
working in fields as diverse as telecom-
Functional Description including spikes and glitches. It is fully
oroarammable over GPlB or RS-232-C
munications, electronic design and test, ;nt&aces. Hard copies are made at the
lasers, computers, NDT, physics and The LeCray 9450A Dual-channel Digital touch of a button on a wide range of
defense, the 9450A will rapidly become Oscilloscope is a pawertul high-resolu- digital ploners and printers.
an indispensable measurement tool in fion instrument for waveform recording
any laboratory. and sophisticated analysis. It provides a ANALOG FEEL, DIGITAL PRECISION
bandwidth of 300 MHz, and sampling
Like all LeCroy oscilloscopes, the rates of up to 400 MSIsec for transients The 9450A employs Flash technology in
9450A i designed to serve as a range
s and 10 GS/sec for repetitive waveforms. its two high-resolution, 8-bit ADCs (one
of different instruments: oscilloscope, The instrument features high-fidelity, per channel) which digtize waveforms
transient recorder, counterftimer, 8-bit ADCS, 50K of non-volatile acquisi- with speed and precision. By combining
frequency meter, signal averager, data tion memory per channel, 200K of this technology with ease of use,
\ogger and digits\ vohmeter. \t offers the addiliona\ waveform storage memory, LeCroy's portabie instrument provides
highest performing data acquisition and extensive pulse parameter analysis, and the best leatures of both analog and
processing system available in any a highly sophisticated trigger system to digital oscilloscopes.
portable instrument. capture the most complex signals,
The front-panel controls of the 9450A TRIGGER For instance, the oscilloscope can be set
have been laid out in the style of an up to PASS if:
analog oscilloscope, making it easy to Push-button control enables the user to
use from the very first moment. The choose the appropriate trigger functions 1, The waveform in Channel 1 is
analog feel is enhanced by the rapid for his signal: standard triggering for contained in the mask in Memory C
instrument response and the fact that basic measurements and advanced (all points inside the mask).
waveforms are presented instantly on triggering to meet highly sophisticated
a bright high-resolution screen. For requirements. 2. The frequency in Channel 2 is less
automated test applications at1 the than 10 kHz.
front-panel controls, including cursor The standard trigger facility provides all
positions and internal functions, are fully the conventional trigger functions. Front- 3. The maximum value of Function F
programmable over RS-232-C or GPlB panel controls select and adjust param- is more than 1.45 V.
interfaces. eters such as pre- and post-trigger
settings, trigger level, slope, mode and 4. The RMS value in Channel 1 is
Capturing and measuring signals has coupling. To help users quickly deter- less than 850 mV.
never been easier. For repetitive signals mine the 9450A's trigger mode and
an auto-setup facility finds and displays conditions, LeCroy has created a series If any of these four conditions is not
signals in less than 2 seconds. For one- of illustrative trigger graphics. satisfied, the test will FAIL.
time phenomena the 9450A's long 50K
memories and extensive triggering SMART triggering offers a solution to Whether the test PASSes or FAILS,the
capabilities enable signals to be cap- even the most intricate triggering oscilloscope can, if the user wishes,
tured the very first time, even when problems. For example, FASTGLITCH perform any or all of the following
signal speed and duration are uncertain. trigger can be used to locate and reveal actions:
glitches and spikes less than 2.5 nsec
LONG NOH-VOLATILEMEMORIES wide. Time-qualified trigger is ideal for - Stop the acquisition.
Only long memories allow high-fidelity
ranging applications and can be used to
ignore unwanted signal ref[ections. Other
- Make a screen dump.
recording over extended periods of time. trigger features include hold-off (by time - Store a trace to Memory D.
On equal time-base settings the 9450A, or number of events), gated triggering - Store the selected traces to the
with 50K of memory per channel, will and conditional triggering, qualified memory card.
sample waveforms up to 50 times faster trigger, and trigger delayed by time or
number of events.
- Emit a "beep".
than an oscilloscope with only 1K of
memory. Faster sampling means better - Send a pulse from the rear-panel
single-shot bandwidth, better time accessory port.
resolution and the power to expand
waveforms up to 1000 times to see The PASSiFAlL routine enables the The mask envelope can also be gener-
details that completely elude other oscilloscope to compare a source trace ated inside the oscilloscope.
digital oscilloscopes. In addition, when against a tolerance mask while simulta-
segmented, the 9450A's non-volatile neously testing a set of extracted
acquisition memories can store up to parameters.
200 waveforrns/channel (complete with
date and time stamps).
9450A Specifications
\/ERTICAL ANALGC; SECTION VERTICAL DIGITAL SECTION HORIZONTAL SECTION
Bandwidth (-3 dB): ADCs: One per channel, &bit Flash. Time Base
@ 50 ii, DC to 300 MHz Conversion rate: Up to 400 MSIsec for Range: 1 nsecldiv to 5000 secidiv.
@ 1 M . DC DC to 250 MHz typical at the
i! transients, up to 10 GS/sec for repetitive Clock accuracy: 5 -10.002"/0.
probe t ~ p slgnals, s~multaneouslyon both channels. lnterpolator resolution: 5 psec.
Input impedance: 1 MQ1l 5 pF and Aperture uncenalnty: +I 0 psec. Interpolator accuracy: 20 psec RMS.
50 Cl11% Acquisition memories, Channel 1 and 2: Sampling clock output: BNC connector on
Channels: Two Independent channels; Non-volallle memories (battery backed for rear panel.
standard BNC connector lnputs a rnlnlmum of 2 years) of 50 kllowords per
External clock in: BNC connector on rear
Sensitivity range: 5 mV:dtv to 2 Vidiv, channel can be segmented into 2,5, 10, 20,
panel.
continuously var ab e from 1 to 2 5 trmes 50. 100 or 200 segments.
the flxed setlrng F~xed settlngs range frow Reference memories, C and D: 50K. 16-bit
word rnernorles whlch can store one acquired Acquls~t~on Modes
5 mV1d1v 2 Vldlv (In a I 2, 5 sequence)
to
andlor processed waveform, or up to 205 Rendom Interleaved Sampling (RIS):
Vertical expansion: Up to 5 tlrnes (wlth For repetltlve signals from 1 nsectd~v
averaging up to 50 l~mes 100 rnV/dlv
or waveforms when segmented.
Function memories E and F: Two 50K, 16- to 5 psecidlv.
sensltrvlty).
bjt word memo-ies for waveform processing. S~ngle shot: For translent s~gnalsand
Scale factors: Probe attenuation factors of repetitive slgnals from 10 nsectdlv to
X I X l o , X100, XlG00 X10G00 may be
200 msecld~v
selected and are remotely programmable PEAK AND GLITCH DETECTION
Roll: For s owly changlng s~gnals from
Offset: i 1 2 times the flxed ssnsitivity setting Minimum and maximum peaks, as fast as
500 rnsecidiv to 5000 sec!d~v
In 0 02 drv~s~on increments up to 5 ' 0 V rnax ; 0.002% of the record length (minimum
j;24 dlv @ 10 mV~div, 248 drv @ 5 mVidiv 2.5 nsec), are captured and displayed with Sequence mode: D~vldes acqulsll~on
the
100% probabili:y. Using LeCroy's new memory inlo 2, 5 10, 20, 50, 100 or 200
DC accuracy:
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