AAV-DMUX
Rev. 1
3.4.2 Audio Outputs:
Number of analogue outputs:
4 electronically balanced.
Audio sampling frequency:
48 kHz
Impedance:
50
differential, 5 k
common mode
Connector:
25 pin D-sub.
De-embedded audio wordlength: Up to 24 bits.
Frequency response:
1
20 Hz – 20kHz
Dynamic range:
2
> 106 dB(A)
THD+N @ 0 dBFS:
better than 0.01%, -80 dB
Intermodulation distortion:
3
better than 0.01%, -80 dB
Crosstalk:
< -90 dB
Noise:
< -75 dBqp CCIR-468 weighted
< -90 dBu A-weighted
3.4.3 GPI
GPI Output:
Power good, SDI unlock, de-embed, error, audioA
invalid, audioB invalid.
GPI Connector:
RJ45
Signal type:
Open collector transistor.
Maximum voltage:
50 V
Maximum current:
400 mA if only one output driven, 100 mA all
outputs driven.
4 Detailed Description
The digital video comes either through the receiver or the optical receiver. EDH
information is processed in the de-serialiser and the signal passes to the to the de-
embedding processor . The video signal is then re-serialised and sent to the electrical
output. Digital audio comes from the de-embedding processor and goes to the D/A
converters. The gain is adjusted before the audio is fed to each of the outputs.
1±0.1 dB relative to the level at 500 Hz
2|THD+N @ -60 dBFS A-weighted| + 60
3SMPTE IM, 60 Hz + 7 kHz 4:1 @ -12 dBFS (RMS)
6
