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Model VM300PAFF
Programmable Amplifiers
with Fixed Frequency Filters
32 Channel VME Board
Description
Frequency Devices' Model VM300PAFF comprises a
family of VMEbus amplifier/filter boards offering software
programmable differential amplifiers combined with
precision 3-pole Butterworth or Bessel linear analog filters
in a single width B-size (6U) VME form factor.
VM300PAFF boards provide simultaneous access to 32,
DC-coupled wideband signals while providing
programmable gain from -12dB to +42dB, in 6dB steps
and fixed frequency filters with corner frequencies from
>100 kHz to 300 kHz. VM300PAFF boards may be
configured with 8, 16, or 32 channels. The boards
conform to VME revision C.1 as an A16/D16 Slave.
Available options include AC coupled input and/or
differential output.
Features/Benefits:
· Simultaneous access over 32 channels offers a low
cost, versatile and convenient way to provide
amplification and filtering.
· Three active read/write registers provide
programming and set-up verification.
· Interchannel crosstalk <-100 dB provides precision
performance solutions to design engineers, system
integrators and OEM's.
· Three pole Butterworth or Bessel transfer functions
with a broad range of corner frequencies to meet a
wide range of applications.
· High channel count density without sacrificing
performance maximizes chassis utilization.
Signal conditioning applications include:
· Sonar, navigation and aerospace
· Engine test and simulation AMPLIFIER/FILTER OPTIONS
· Acoustic, vibration analysis & control
PGAB5 -12 dB to +42 dB in 6 dB steps
· Satellite and telecommunications Butterworth 3-pole 100 Hz to 300 kHz
· Automatic test equipment (ATE) PGAL5 -12 dB to +42 dB in 6 dB steps
Bessel 3-pole 100 Hz to 300 kHz
Ordering Information
Transfer Function Options
B - Butterworth A - AC Coupled Input
L - Bessel D - Differential Output
VM300PAFF-16-PGAB5-300kHz-D
8, 16 or 32 Channels
-3dB Corner Frequency
e.g. 100 Hz to 300 kHz
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
Model VM300PAFF
Programmable Amplifiers
Specifications with Fixed Frequency Filters
(@ 25°C and rated Power Input) VME Board
32 CHANNEL VME SIGNAL CONDITIONING BOARD
Analog Input
1. Impedance 1 MW//22pF
2. Maximum Input ±15V
3. AC Couple (Optional) Fixed frequency from 1 kHz to 100kHz
Analog Output
4. Impedance 1.0W typ., 10W max.
5. Linear Operating Range ±5V, Output clamped to ±9 V
6. Channel to Channel Crosstalk <-100dB @ 1 kHz, <-90dB @ 20 kHz
7. Maximum Current 5.0mA
8. Offset Voltage 2mV RTI, NTE 25mV max.
9. Offset Temp. Coeff., RTI ±(5 + 100/G) mV/°C max.
Filter Characteristics
10. Anti-alias filtering 3-pole low-pass Butterworth or Bessel fixed frequency
11. Cut-off Frequency fc (-3dB) Fixed frequency from 100 Hz to 300 kHz
12. Amplitude Match* ±0.1dB @ DC, linear to ±0.25dB at fc
13. Phase Match* 0.5° typ., 2.0° max. @ fc
14. Noise Voltage, RTI 20nV/Hz @ 1 kHz, G=128
15. Distortion PGA5, G=1X -83dB, 1 kHz single ended
@ 1VRMS Output, RL=2kW -86dB, 1 kHz differential
Gain
16. Gain Programming (G) 0.25X to 128X in factors of 2:1 (before filtering)
32 channels programmed over VMEbus with read-back
17. Gain Accuracy @ DC ±0.1dB max.
VMEbus
18. Interface A16/D16, D08 (EO), Slave
19. Registers Three active R/W registers in 64 byte block
Power Supply
20. From VME Backplane +5V - 1.0A max.
±12 - 0.7A max. each
Environmental
21.Operating 0°C to +70°C
22. Storage -25°C to +85°C
23. Humidity 0-95% non-condensing
Mechanical
24. Card Size VMEbus 6U single slot 9.17 x 6.3 inches, (233 x 160 mm)
25. No. of Input Channels 32 Differential - DC coupled
26. No. of Output Channels 32 Single Ended - DC coupled, Two groups of 16
27. Differential Output (Optional)
28. Mating Connectors Input: Male high density 78-pin D-sub
Output: Female high density 44-pin D-sub
29. Weight 1 LB., (454 grams)
* Any two channels set to same gain and loading
We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements,
recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements,
recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright. PR-VM300PAFF-00
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CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de