Introduction; The 2642A Analyzer - Tektronix 2642A Reference

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Introduction
This manual covers the installation and features of the Tektronix
2642A Analyzer.
The 2642A Analyzer
The 2642A is high performance analog data acquisition and signal
processing peripheral for personal computers. The 2642A interfaces
with an IBM PC, XT. AT, or PS/2 (referred to as the host computer)
via the PC's serial port. It also operates on many IBM-compatible
computers running MS-DOS. See Minimum System Requirements in
Section 2 for a complete description of the compatibility requirements.
The 2642A acquires and processes two channels (four channels are
optional) of analog input data.
It
can also generate one channel of
analog output data.
Both the input and output subsystems process data al bandwidths
starting from DC-to-5 Hz, up to 200 kHz. Thus the 2642A is useful for
analysis and testing of mechanical systems, electro-mechanical
systems, and low frequency electrical systems.
The 2642A uses digital low pass anti-aliasing filters as a major part of
the data acquisition subsystem. The digital filters are preceded by
a
high quality 200 kHz analog low pass filter. Filter ripple and alias
protection characteristics are guaranteed for the entire bandwidth.
The effective sample rate is 2.56 times the selected bandwidth. For
example, when the bandwidth is set lo 20 kHz, the effective sample
rate is 5 l.2 kHz.
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