Grass Valley 8920ADT - Manual (Page 14)

8 8920ADT Instruction Manual
8920ADT Analog Audio to AES/EBU Converter with Delay Tracking
Table 5 provides the possible input conditions and the resulting output
condition.
Table 5. Possible Operating Conditions
Audio Input Condition Reference Input Condition Output Condition
Audio inputs present Valid reference input present AES/EBU serial digital output sampled at 48 kHz.
No audio input signal present Valid reference input present AES/EBU serial digital output sampled at 48 kHz. See S/N specification for level.
Audio inputs present Reference not present AES/EBU serial digital output sampled at approximately 48 kHz ±1 Hz. Internal
free run clock rate.
Audio inputs present Invalid reference input Will pull AES/EBU output toward high or low limit of lock range and could pro-
duce erratic timing shift and Channel Status Bit errors. Reference Lock LED will
be invalid and GUI tally will indicate 48 K Word Clock reference present even if a
video reference is used.