Subassembly > VM300PAFF

VM300PAFF


32-Channel
VME Board

Specifications

Ordering Information


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Model VM300PAFF
Programmble Amplifier/
Fixed Frequency Filter
 

 

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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.

 

 

Applications

  • Sonar, navigation and aerospace
  • Engine test and simulation
  • Acoustic and vibration analysis
  • Satellite and telecommunications
  • Automatic test equipment (ATE)

Amplifier/Filter Options

PGAB5-300   -12 dB to +42 dB in 6 dB steps
    Butterworth 3-pole >100 kHz to 300 kHz
PGAL5-300   -12 dB to +42 dB in 6 dB steps
    Bessel 3-pole >100 kHz to 300 kHz

     

 


Specifications

(@ 25°C and rated power input)

Analog Input
  • Impedance: 1 MΩ // 22pF
  • Maximum Input: ±15V
  • AC Couple (Optional Fixed Freq.):
    10 Hz to 1.0 kHz

Analog Output

  • Impedance: 1.0 Ω typ., 10 Ω max.
  • Linear Operating Range:
    ±5V linear operating range,
    Output clamped to ±9 V
  • Channel to Channel Crosstalk:
    <-100dB @ 1 kHz, <-9OdB @ 20 kHz
  • Maximum Current: 5.0mA
  • Offset Voltage: 2mV RTI, NTE 25mV max.
  • Offset Temp. Coeff., RTI:
    ±(5 +100/G) µV/°C max.

Filter Characteristics

  • Anti-alias filtering: 3-pole low-pass Butterworth or Bessel fixed frequency
  • Cut-off Frequency fc (-3dB):
    Fixed frequency from 100Hz to 300 kHz
  • Amplitude Match*:
    ±0.1dB @ DC, linear to ±0.25dB at fc
  • Phase Match*: 0.5° typ., 2.0° max. @ fc
  • Noise Voltage, RTI:
    20nV/sqrt(Hz) @ 1 kHz, G=128
  • Distortion PGA5, G=1X @ 1Vrms Output, RL=2kohm:
    -83dB, 1 kHz single ended
    -86dB, 1 kHz differential

* Any two channels set to same gain and loading

Gain
  • Gain Programming (G): 0.25X to 1024X in factors of 2:1 (before filtering), 32 channels programmed over VMEbus with read-back
  • Gain Accuracy @ DC: ±0.1 dB max.

VMEbus

  • Interface: A16/D16, D08 (EO), Slave
  • Registers: Three active R/W registers in 64 byte blocks

Power Supply

  • From VME Backplane:
    +5V - 1.0A max.
    ±12 V - 0.7A max.

Environmental

  • 0perating Temperature: 0°C to +70°C
  • Storage Temperature: -25°C to +85°C
  • Humidity: 0-95% non-condensing

Mechanical

  • Card Size: VMEbus 6U single slot,
    9.17 x 6.3 inches, (233 x 160 mm)
  • No. of Input Channels:
    32 Differential - DC coupled
  • No. of Output Channels:
    32 Single Ended - DC coupled,
    Two groups of 16
  • Differential Output (Optional)
  • Mating Connectors:
    • Input: Male high density 78-pin D-sub, Quantity 1
    • Output: Female high density 44-pin D-sub, Quantity 2
  • Weight: 1 LB., (454 grams)


Ordering Information


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.


Frequency Devices, Inc.
Your engineering partner for signal conditioning
  1784 Chessie Lane
Ottawa, IL 61350

Fax: (815) 434-8176
e-mail: sales@freqdev.com

 

Phone: (815) 434-7800
or (800) 252-7074 (U.S. only)

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