Racal Instruments 3162A/B, User Manual

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3162A/B User Manual
Getting Started 1-2
Waveform Generator. It has the same performance as the Model 3162A,
except it has two separate main outputs. While sample clock, frequency,
trigger and sequence modes are common to the two channels, each channel
has separate controls for amplitude, offset, and waveform shape.
NOTE
The Model 3162B has the same functionality as the Model
3162A. This manual describes all functions and features
that are available on the Model 3162B. If you own the
Model 3162A, simply ignore all references in this chapter
to the second output channel.
Despite its small size, the Model 3162B offers many features and functions
such as
VXIplug&play compatibility, frequency hopping, amplitude
modulation, FSK modulation, front panel or backplane PLL, phase modulation,
counted burst, internal trigger-generator, and more. The instrument generates
high quality, high accuracy waveforms throughout the specified frequency
range, amplitude span and operating temperature.
The Model 3162B generates standard waveforms at frequencies ranging from
100
µ
Hz to 250 MHz. It can also generate arbitrary waveforms with clock rates
ranging from 100mHz to 500 MHz. Clock rates and frequency may be set with
7 digits of resolution. The accuracy and the stability of the output frequency
depend on the reference clock. As standard, a TCXO circuit provides 1ppm
accuracy and stability. With the TCXO reference, the output frequency can be
controlled to a full seven digits of resolution and accuracy.
Output amplitude may be programmed separately for each channel within the
range of 20mV to 10Vp-p into an open circuit, and 10mV to 5V into 50
Ω
.
Amplitude and offsets are programmed with 4 digits of resolution.
Using its PLL function, the generator can be phase locked to an external
reference. An internal frequency counter detects the frequency of the external
signal and adjusts the 3162B to its optimal lock-in range. After the instrument
has locked, the phase offset between the two signals can be changed from 0
°
to +360
°
. Phase offset adjustment is controllable via SCPI commands or by
using the PM input as a phase modulation control.
Besides its normal continuous mode, the Model 3162B responds to a variety
of trigger modes. The output waveform may be gated, triggered, or may
generate a counted burst of waveforms. A built-in trigger generator with a
programmable period can be used as a replacement for an external trigger
source.
The Model 3162B generates arbitrary waveforms with 12 bits of resolution.
While ten standard waveforms are memory resident, up to 4096 additional
waveforms may be downloaded from the controller to the instrument, using
shared memory or standard data bus transfer. Waveforms may also be
generated using the WaveCAD program.
The Model 3162B is a digital instrument. With the exception of standard
waveforms, any waveform it generates must be first downloaded to waveform
memory. The arbitrary waveform memory is a bank of 12-bit words. Each word