Vertical expansion: 2 times maximum.
Typical execution time for 1250 points:
400-1000 msec.
MEAN VALUE SMOOTHING
Number of adjacent blocks processed: 50 to 32000 in
10 steps,
Number of points per block: varies with the time base
and the number of blocks selected,
Typical execution time for 1250 points: 700 msec.
N-POINT SMOOTHING
Filter coefficients with weighting factors for successive
data points:
3 point - (1:2:1) 1/4
5 point - (1:4:6:4:1) 1/16
7 point - (1:6:15:20:15:6:1) 1/64
9 point- (1:8:28:56:70:56:28:8:1) 1/256.
Number of points processed: 50 to 32000 in 10 steps.
Vertical expansion: 2 times maximum.
Typical execution time of 1250 points: 500 msec.
EXTREMA MODE
Logs all extreme values of a waveform over a pro-
grammable number of sweeps. Maxima and minima
are displayed separately by ROOF and FLOOR traces.
Number of sweeps: selected in a 1-2-5 sequence
from 1 up to 1,000,000.
Number of points processed: 50 to 32000 in 10 steps.
Glitches as short as 10 nsec or 0.04% of the time-
base setting are displayed.
Vertical expansion: 2 times maximum.
Typical execution time for 1250 points: 300 msec.
CHAINING OF OPERATIONS
Two functions can be automatically chained using
functions E and F.
Example:
E = CH1 - CH2
F = summed average of E
Manual chaining using memory C and D for
intermediate results may continue indefinitely.
REMOTE CONTROL
All front-panel controls and Waveform Processing
functions are fully programmable via either the
9400A’s GPIB or RS-232-C interfaces. Simple English-
like mnemonics are used.
STORED FRONT PANELS
Up to 7 front-panel setups, including WP01 menus,
can be stored and recalled by the menu buttons at
the left side of the 9400A screen.
The +_ 1 V amplitude sine wave in channel 1 (upper trace) is squared
(function E: 1 * 1, lower trace) and then integrated (functions F:IE).
The value of the integral between the two cursors is 4.00 pV2s. the
RMS value can be calculated with the formula RMS =
( 1_. ,/" V2dt)
I/2
In this case: RMS = (1. 414V2s)
1/2
= 0.707 V.
At
8ps
A fast negative going signal at 5 nsec/div (upper trace) recorded
Random Interleaved Sampling mode is inverted and stored in
memory C (lower trace). Integral and differential are shown
function E and function F. The area under the inverted curve is
measured by first defining the area with the time cursors and then
reading the value of C, In this case: 11.44 nVs.
LeCroy
Innovators in Instrumentation
LeCROY CORPORATE HEADQUARTERS
700 Chestnut Ridge Road
Chestnut Ridge, NY 10977-6499
Telephone:(914) 578-6097
800-5-LeCroy (532 769)
TWX: (710) 577-2832
Fax: (914) 425-8967
LeCROY EUROPEAN HEADQUARTERS
Route du Nant-d’Avri1101
P.O. Box 341
1217 Meyrin 1-Geneva, Switzerland
Telephone:(022) 823355 Telex: 419058
Fax: (022) 823915
Other sales and service representatives throughout the world.
Copyright © January 1989 LeCroy is the registered trademark of LeCroy Corporation All rights reserved¯ Information in this publication supersedes all earlier versions. Specifications subject to change
without notice
TDS 013/QO2
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