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Waveform Digitizers 7 Analog Modules

System Reference, January 2001

203

Waveform Digitizers

There are two types of waveform digitizers available as

follows:

• High Resolution Digitizer (2 MSample/s 16-bit)

 Code name: WDB

• High Speed Digitizer (41 MSample/s 12-bit)

 Code name: WDA

Waveform Digitizer Overview

The waveform digitizer can digitize the analog signal

output from DUT, then store the digitized waveform data

in the waveform memory in real-time. The digitizer

sequencer controls the waveform memory area where

data is stored, and the number of sample points.

The digitizers start waveform measurements by entering

the external triggers. Generally, a digital channel is used

for each digitizer as the external trigger source. A trigger

signal must be supplied at the SYNC CLK pin. For more

information of the synchronization trigger, see “Synchro-

nization Trigger” on page 248.

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