Ward-Beck Systems, First by Design - Professional Audio Signal Management Solutions

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D8204A

AES/EBU Reclocking Distribution Amplifier - Analog Output - 75 Ohm

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Description

The D8204A is a four output digital audio distribution amplifier designed specifically for use in 75 Ohm, unbalanced, coaxial cable installations.  The D8204A is a DA in Ward-Becks' 8200 Series, and it uses BNC2 or BNC4 (* MF8210 only) rear modules. With an on board digital-to-analog converter the D8204A also provides two stereo analog audio outputs.  Features such as cable equalization and data reclocking allow the unit to reliably recover the incoming digital signal.  Lock, Confidence, No Lock and equalizaton LED indicators are all visible from the front edge of the card.  Located at the top edge of the card is the EQ insert switch, which automatically activates the cable equalization without having to set any jumpers.

Specifications

Digital
  • Input Impedance
    Selectable 75 Ohm, and HiZ (Transformer balanced)
  • Sampling Frequency Range
    30kHz to 50kHz
  • Input Level
    0.2-7V p-p
  • Conversion
    2 4 bit
  • Equalization
    5000 ft 75 Ohm coaxial cable
  • Jitter
    Less than 5 ns
  • Output Impedance
    75 Ohm unbalanced
  • Output Level
    1 V p-p terminated
Analog Output
  • Frequency Response
    ± 0.2 dB, 20Hz to 20kHz
  • Noise
    better than 84 dBu (Digital Silence)
  • Total Harmonic Distortion
    less than 0.01%
  • Stereo Separation
    better than 80 dB, 20Hz to 20kHz
  • Output Impedance
    60 Ohm balanced
General
  • Weight
    0.279 lbs. (127 grams)
  • O.C. Outputs
    10 Ohm, 60 mA MAX, 30 V MAX
  • Power Requirements
    +22 V, 165 mA MAX, -22 V, 137 mA MAX
  • Dimensions
    1" w x 2.75" h x 10.06" d (25.4 mm x 70 mm x 270 mm)

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