Specifications

User Manual 301/302
What Are
Arbitrary
Waveforms?
Arbitrary waveforms are generated from digital data points, which are
stored in memory. Each data point has a vertical resolution of 12 bits
(4096 points), i.e., each sample is placed on the vertical axis with a
precision of 1/4096.
The Model 301/302 has the following waveform memory capacity:
4 Meg – standard memory configuration
16 Meg optional memory expansion
Each horizontal point has a unique address - the first being 00000 and
the last depends on the memory option. In cases where smaller
waveform lengths are required, the waveform memory can be divided
into smaller segments. Then it is possible to select which segment is
sampled, how many times and in what sequence.
When the instrument is programmed to output arbitrary waveforms,
the clock samples the data points (one at a time) from address 0 to
the last address. The rate at which each sample is replayed is defined
by the sample clock rate parameter. The Model 301/302 provides
programmable sample clock rates from 100 mSa/s to 300 MSa/s.
The Arbitrary Waveform Control Panel (figure 3-14) in WaveWiz
allows adjustment of arbitrary waveforms.
Figure 3.14 WaveWiz Arbitrary Waveform Control Panel
Unlike the built-in standard waveforms, arbitrary waveforms must first
be loaded into the instrument's memory. Correct memory
management is required for best utilization of the arbitrary memory.
An explanation of how to manage the arbitrary waveform memory is
Configuring the Instrument
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