Model VM32FF 32 Channel Fixed Frequency VME Filter Board Description Frequency Devices model VM32FF comprises a family of VMEbus filter boards offering 32 channels of fixed frequency, linear analog filtering in a single width B-sized (6U) form factor. VM32FF boards receive up to 32 high level differential signal inputs through a shielded front panel connector and provide signal buffering and unity gain for each channel (optional customer specified gain). Boards may be configured with 2-pole D72 or 4-pole D74 filters from 1.0 Hz to 100.0 kHz, and with high-pass or low-pass (anti-alias) transfer functions allowing user to externally cascade filters into band-pass configurations. Each channel provides low harmonic distortion and wide signal-tonoise ratio to 12 bit resolution. Features/Benefits: • Simultaneous access over 32 channels offers a low cost, versatile and convenient way to provide amplification and filtering. • Interchannel crosstalk <-80 dB provides precision performance solutions to design engineers, system integrators and OEM's. • 2- and 4-pole Butterworth or Bessel transfer functions with a broad range of corner frequencies are offered to meet a wide range of applications. • High channel count density without sacrificing performance maximizes chassis utilization. Signal conditioning applications include: • Industrial process control • Engine test and simulation • Acoustic, vibration analysis & control LOW-PASS FILTER OPTIONS 2-pole D72, DP72 4-pole D74, DP74 HIGH-PASS FILTER OPTIONS 2-pole D72 4-pole D74 • Satellite and telecommunications • Automatic test equipment (ATE) • Aerospace, navigation & sonar • Automotive test cells 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com Model VM32FF Fixed Frequency VME Filter Board Specifications (@ 25°C and rated Power Input) 32 CHANNEL VME SIGNAL CONDITIONING BOARD Analog Input 1. Impedance 2. Maximum Input 3. Over Voltage Protection 4. Common Mode Rejection 1 GW//15pF ±10V pk linear ±60 V 75 dB min. @ 60 Hz Analog Output 5. Impedance 6. Linear Operating Range 7. Channel to Channel Crosstalk 8. Maximum Current 9. Offset Voltage 10. Offset Temp. Coeff. 11. Short Circuit Protection 12. Peak Distortion @ 1 kHz, 3.54 Vrms 13. In-band Spectral Noise, Gain of X500 0.1W typ., 1.0W max ±10V pk <-80 dB @ 10 kHz ±2.0mA ±10mV max. 20 mV/°C Short to Ground 80dBc max. 230nV/√ Hz Filter Characteristics 14. See D72 or D74 Series Specifications 15. Cut-off Frequency fc (-3dB) Fixed frequency from 1 Hz to 100 kHz Gain 16. Nominal Gain 17. Accuracy (optional) 1X ± 1.0% 10X, 100X, 1000X, Contact factory for other gain options Power Supply 18. From VME Backplane 19. Isolation Environmental 20. Operating 21. Storage 22. Humidity Mechanical 23. Card Size 24. No. of Input Channels 25. No. of Output Channels 26. Mating Connectors 27. Weight +12V and -12V, ±5%, 0.9A max. each, no load 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) 32 Differential - DC coupled Two groups of 16 32 Single Ended - DC coupled Input: Female high denisty 62-pin D-sub Output: Male high density 44-pin D-sub 1.5 LB2., (681 grams) Ordering Information VM32FF-32-D74L4B-100 kHz - 100 Optional Gain 10, 100, 1000 Filter Type and Corner Frequency D72, DP72, D74, DP74 8, 16 or 32 Channels 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-VM32FF-02 2 25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839 e-mail: [email protected] • Web Address: http://www.freqdev.com