XVME-500/590 Manual
February, 1988
Table l-l
Versions
Version
Conversion Time
Settling Time
Throughput Frequency
XVME-500/ 1
25uSec
25uSec
20KHz
XVME-590/ 1
25uSec
25uSec
20KHz
XVME-500/2 25uSec 10 uSec 28.5KHz
XVME-590/2 25uSec 10uSec 28.5KHz
XVME-500/3 10uSec 10uSec 50KHz
XVME-590/3 10uSec 10uSec 50KHz
1
.
Two types of differential amplifiers are available: fixed gain (version 1 of both
modules) and programmable gain (version 2 & 3 of both modules).
The fixed-gain amp offers jumper-selectable gains of xl, x10, xl00 and x1000. In
addition, the fixed-gain amp may offer resistor-programmable gain (to any number
between 1 and 1000) if a resistor (Rl0) and potentiometer (R13) are added (see
Section 2.6.4.3).
The programmable amplifier provides three ranges of jumper-selectable programmable
gains (see Section 2.6.4.-l).
Range 1: xl, x2, x5 and x10. Range 2: x4, x8, x20
and x40. Range 3: x10,
x20, x50 and x100. A 32-element RAM buffer is provided
with the programmable amps to hold separate gain values for the 32 analog inputs.
Within each range, the four options are software-programmable.
XYCOM’s
XVME-500 and XVME-590
are designed to be addressed within the VMEbus
defined 64K Short I/O Address Space. The module address is jumper-selectable to
any of the sixty-four 1K boundaries within the Short I/O Address Space. There are
three 8-bit registers which are used for channel status, control-setting interrupt
vector, programmable gains (versions 2 & 3 on both modules) and channel selection.
In addition, there is a 16-bit
data register for reading converted digital data.
1.4 SPECIFICATIONS
The following table lists the electrical, environmental, and VMEbus compliance
specifications for the XVME-500 and XVME-590 Analog Input Modules:
1 - 6
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