3152B User Manual
Publication No. 980935 Rev. A
Figure 1-5, ArbConnection Serial Data Composer Example
General
Description
This section describes the 3152B general features and
performance, as well as output functions, run modes, and
functions.
Output
Waveforms
The 3152B is a digital waveform generator that creates virtually any
type of waveform. Unlike conventional function and pulse
generators, the 3152B creates waveforms digitally and stores them
in memory. A clock generator then clocks the data from memory to
a digital to analog converter (DAC) to convert the digital data to an
output waveform. Since the waveform memory is volatile, its data is
lost when you turn off the instrument. However, you may create as
many waveforms as desired on the host computer, and quickly
download them to the 3152B memory as needed.
The memory size is large enough for most applications. However,
you may maximize the effective memory capacity by downloading
specific waveforms only when they are required. For example, if
one part of your ATE sequence requires a complex waveform that
consumes nearly all of the waveform memory, you may delete this
waveform after that portion of your sequence is completed, and
then quickly download a new waveform for the next part of the
sequence.
Depending upon your application, you may be able to change
waveform parameters even more quickly without downloading new
data. After you download a waveform, you may change the sample
clock frequency, amplitude, offset, and run modes without
disturbing the downloaded data.
The 3152B can divide its memory into smaller segments, and then
use these segments to create complex sequences of waveforms.
The 3152B can generate, and even measure, the following
functions:
•
Standard waveforms. The 3152B computes these automatically
from its built-in equations for sine, square, triangle, and other
common waveforms.
•
Arbitrary waveforms. Download these to the instrument
1-6 Introduction
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