D8204C — AES/EBU Distribution Amplifier

DIGITAL INPUT

Resolution 24 bit Input Level 0.2-7 V p-p Input Impedance 110 Ohm (transformer balanced) Sampling Frequency Range 30 kHz to 50 kHz

DIGITAL OUTPUT

Resolution 24 bit Output Level 2.5 V p-p Output Impedance AES/EBU 110 Ohm balanced Sampling Frequency Range 30 kHz to 50 kHz Jitter Less than 5 ns

ANALOG (fs=48 kHz, 0 dBFs = +24 dBu

Maximum Output Level +26 dBu Frequency Response +/-0.2 dB, 20 Hz to 20 kHz Noise better than 84 dBu (Digital Silence), 20 Hz to 20 kHz Total Harmonic Distortion better than 0.01% Stereo Separation better than 90 dBu, 20 Hz to 20 kHz Output Impedance 60 Ohm balanced

GENERAL

Power Requirements +21 V, 110 mA, MAX -21 V, 80 mA, MAX Dimensions approx. 1” wide x 2.75” high x 10.06” deep (25.4mm x 70mmx 270mm) Weight approx. 0.116 kg (0.252 lbs)

Ward-Beck Systems Inc. reserves the right to change performance specifications without prior notice. D8204C TERMINAL OPTIONS

Equalization

For most applications, the D8204C only requires installation in the appropriate mounting frame and connection of input and output wiring. Factory calibrated, the D8204C can recover digital audio signals conforming to AES/EBU specifications and transmitted over 110 Ohm digital audio cabl up to 250 metres (750 ft.) long. For cable lengths in excess of 250 metres, we recommend that the input cable equalizer be activated.

To activate the cable equalization, simply press the push-button located on the front edge of the card. The yellow LED located below the switch will illuminate. STATUS TALLIES AND MONITOR Status

The D8204C is equipped with four LED status tallies located on the front edge of the card, above the handle. The function of these tallies are:

GREEN LED LOCK- Indicates that the receiver is locked to the incoming AES/EBU signal. YELLOW LED CONF - Indicates an eye pattern violation. It is a warning that the incoming signal is approaching the limits beyond which reliable recovery may be jeopardized. This may be due to the band limiting effects of long cable runs. To eliminate confidence errors, activate the input cable equalizer. RED LED ERROR- Indicates that the receiver cannot lock to the incoming signal. This may mean loss of signal or that the signal is beyond the recoverable range of the receiver, and input cable equalization may be required. YELLOW LED EQ - Indicates that the input cable equalization has been enabled

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