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C-size
One of several possible sizes for VXI modules. The HP E1432A and HP
E1433A are C-size modules.
channel-dependent commands
Commands that are channel-dependent change a parameter for each
channel independently.
COLA
Constant Output Level Amplifier.
continuous mode
A mode of data-collecting used in the HP E1432A, the HP E1433A, and in
other instruments such as the HP E1431A. The instrument collects data
continuously and stops only if the FIFO overflows.
D32, D16, and D08 (EO)
The VXI Bus provides 32 data lines. Modules can use all 32 lines, or 16
lines, or 8 lines. For example, “D16 access” refers to data read across 16
lines.
daisy-chain
A set of instruments or modules connected together in a line. Data and
instructions enter each one before being buffered and passed out to the
next module in line.
decimation filter
A digital filter that simultaneously decreases the bandwidth of the signal
and decreases the sample rate. The digital filter provides alias protection
and increases frequency resolution. For more information, see Spectrum &
Network Measurements available through your Hewlett-Packard Sales Office.
delta sigma
A method for converting an analog input to digital data. It involves using a
difference of two voltages (delta) and a summation of signals (sigma) to
improve accuracy.
digitizer
An instrument which converts analog signals into digital data suitable for
digital signal processing.
DRAM
Dynamic Random Access Memory.
DSP
HP 1432A User's Guide
Glossary
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