Dual channel acquisition – Teledyne LeCroy WavePro 7 Zi_Zi-A User Manual
Page 49
Getting Started Manual
922137-00 Rev A
41
Dual Channel Acquisition
When using 7 Zi and Zi-A oscilloscopes, you can combine or interleave
channels to increase sample rate, memory, and bandwidth. When you
combine channels, uncombined channels remain available for triggering,
even though they are not displayed.
In 2-channel operation, channels 1
or 2, and 3 or 4 can be used in
Auto operation for 40 GS/s. When
channels are paired in the
following combinations, the
maximum sampling rate is
doubled and the record length is
greatly increased:
In 2-channel operation, channels 2 and 3 are made active. Channels 1 or 2,
and 3 or 4 can be used in Auto operation for 40 GS/s. When channels are
paired in the following combinations, the maximum sampling rate and
record length is doubled:
Note: These sample rates apply to all WavePro 7 Zi and Zi-A oscilloscopes
(except the 715Zi, Zi-A without the 4x20 GS option).
In short, sampling can be maximized to 40 GS/s using two channel
combinations except for channels 1 and 2, or channels 3 and 4 (which
always yield 20 GS/s. Use best practice by choosing channel 1 or 2 for your
first input, and channel 3 or 4 for the second.
Refer to Acquisition Modes in the specifications o
for
maximum sample rates.
C
OMBINING
C
HANNELS
P
ROCEDURE
Set up channel combinations on the interface as follows:
1. Touch Timebase → Horizontal Setup... on the menu bar and the
Horizontal Setup... dialog is shown.
2. Under Active Channels, touch 4, 2 or Auto. The maximum sample
rate is shown alongside each button.
Note: As mentioned previously, Auto mode provides channels 1 or
2, and 3 or 4 while 2-channel mode activates channels 2 and 3.
Combinations Receiving 20 GS/s
Channels 1 and 3
Channels 1 and 4
Channels 2 and 3
Channels 2 and 4