Model VM32PAFF
32 Channel VME Module
Programmable Amplifier
Description
With Fixed Frequency Filter
(a)
3-pole Low Pass
Filter
Output
Amplifier
Differential Input PGA
+
-
Ch
x
IN
VMEBus
Interface
Ch
x
OUT
(b)
Figure 3-2 (a) and (b): A daughter module.
X
represents the channel number of 1 up to 32.
Anti-Alias Filters
Each channel provides a fixed frequency 3-pole Bessel or Butterworth linear analog low-pass filter. The
corner frequency for each filter is user specified between 100 Hz and 100 kHz. There is no bypass mode
for the anti-alias filter.
Output Amplifiers
The output of each filter module is applied to the output amplifier. This output stage converts the signal to
a differential output with a low output impedance. The output is clamped to ±9V on each wire of the
diferential pair. This results in a linear operation range of ±5V.
7
1784 Chessie Lane., Ottawa, IL 61350
•
Tel: 800/252-7074, 815/434-7800
•
FAX:815/434-8176
e-mail: [email protected]
•
Web Address: http://www.freqdev.com
