Functional Description and Specifications RUB SW
Page 49
4.6
“Word Clock“: Set-Up of Word Clock Monitoring
This function offers to set up the word clock monitoring and changeover characteristic.
Configuration (example shows a screen shot of the PC program tab):
Word Clock Monitoring Mode
The signals of a pair (signals 1 of
CLOCK IN 1
and
CLOCK IN 2
, etc.) should have same level
and frequency.
SW
measures level (non-recurring) and frequency (permanently) of all word
clock signals.
Frequency: A valid word clock frequency should be a multiple of one of the basic sample
frequencies: 32 kHz, 44.1 kHz or 48 kHz. Any pull-up or pull-down frequency will
not be regarded at this point. Example: 96 kHz = 48 kHz x 2. The factor can be
out of 1, 2, 4, 8, 16, 32, 64, 128 or 256.
If you know the frequency of the signal, you can enter this frequency here. In this
case,
SW
compares the measured frequency with the selected frequency, and
raises an alarm in case of any differences.
The result of the frequency measurement will be presented at the status monitor.
→
C
hapter ‘
Word Clock Monitoring
’
→
‘
Measurement of Signal Frequency
’
.
