Model VM16FFFA
16-Channel
Description
Frequency Devices' Model VM16FFFA comprises a
family of VMEbus filter/amplifier boards offering
sixteen channels of linear analog filtering with jumper-
select gain of 1, 10, 100, 200 and 500 in a single width
B-size (6U) VME form factor. Each instrument offers
sixteen differential signal inputs through a shielded
front panel connector that provides signal buffering,
gain setting, and fixed frequency filtering for each
channel. VM16FFFA boards may be configured with
one of several filters with standard factory set cut-off
frequencies from 0.02 Hz to 100 kHz, and with high- or
low-pass transfer functions allowing user to externally
cascade filters into band-pass configurations. The
boards use the VMEbus for power only.
Features/Benefits:
• A convenient way to provide simultaneous access
to 16 channels of precise filtering and gain in a VME
system.
• Individual I/O offset adjustment for each channel
allows for offset adjustment independent of gain.
• Broad range of transfer characteristics and corner
frequencies are offered to meet a wide range of
applications.
• Low harmonic distortion and wide signal-to-noise
ratio to 16-bit resolution with interchannel crosstalk
<-80 dB.
Signal conditioning applications include:
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Engine test and simulation
Automotive test cells
Aerospace, navigation & sonar
Laboratory R & D
Acoustic and vibration analysis
Satellite & Telecommunications
Automatic test equipment (ATE)
Industrial process control
LOW-PASS FILTER OPTIONS
2-pole
D72, DP72
4-pole
D61, D64, DP64, D74, DP74
6-pole
D66, DP66, D76, DP76
8-pole
D68, DP68, D78, DP78
HIGH-PASS FILTER OPTIONS
2-pole
D72
4-pole
D61, D64, D74
6-pole
D66, D76
8-pole
D68, D78
BAND-PASS FILTER OPTIONS
2-pole pair
D64BP
4-pole pair
D68BP
BAND-REJECT(NOTCH) FILTER OPTIONS
4-pole pair
D68BR
Fixed Frequency Filter with
Selectable Gain VME Board
25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
Model VM16FFFA
Specifications
(@ 25°C and rated Power Input)
Analog Input
1. Impedance
2. Input Range
3. Maximum Input
4. Common Mode Rejection
Analog Output
5. Impedance
6. Linear Operating Range
7. Channel to Channel Crosstalk
8. Maximum Current
9. Offset Voltage
10. Short Circuit Protection
11. Peak Distortion @ 1 kHz,
Gain of x1
12. In-band Spectral Noise,
Gain of x500
Filter Characteristics
13. See Series Specifications
Gain
14. Jumper Selectable Steps
15. Accuracy
Power Supply
16. From VME Backplane
17. Isolation
Environmental
18. Operating
19. Storage
20. Humidity
Mechanical
21. Card Size
22. No. of Input Channels
23. No. of Output Channels
24. Mating Connectors
25. Weight
VME Filter Board
1 MΩ//47pF
±10V pk. linear
±30V peak, either input
70 dB typ., 60 dB min. @ 60 Hz.
1
Ω
typ., 10
Ω
max.
±10V pk.
<-80 dB @ 20 kHz
±5mA
±2mV max. trimmable to zero
Short to Ground
-95 dBc max., D68 w/7.07 Vrms input
__
80nV /
√Hz
max., D68 idle channel
D61, D64, D66, D68, D72, D74, D76, D78, D64BP, D68BP, D68BR
1, 10, 100, 200, 500
±2%
+5V ± 5%
4.0 A max., outputs unloaded
Analog ground may be isolated from VME and chassis
ground by jumper.
0°C to +70°C
-25°C to +85°C
0-95% non-condensing
VMEbus 6U single slot 9.17 x 6.3 inches, (233 x 160 mm)
16 Differential - DC coupled
16 Single Ended - DC coupled
62-pin "D", Quantity 2, Input and Bypass
44-pin "D", Quantity 1, Output
1.5 lbs., (0.68 kg.)
16 CHANNELS OF FIXED FREQUENCY FILTERS AND SELECTABLE GAIN
Ordering Information
8 or 16 Channels
VM16FFFA-8-Filter Type and fc
e.g. D61L4B-0.10 Hz
D68L8B-100 kHz
D74H4B-96.0 kHz
D78L8L-75 Hz
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-VM16FFFA-02
2
25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
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