214
Issue 21
TX500 series technical manual
12.3 Performance
System
Timing - Video
For PGM output to be transparent to embedded
information, all router inputs must be within 54
µ
S
of the reference input, and each other.
Genlock range with respect to
analogue video reference
Between 5 lines early and 4
7/
8
lines late
System Delay**
No DVE
1 line
With DVE
1 Frame and 1 line
**The system delay is defined with respect to the settings of the card edge switches relative
to the analogue reference. i.e. if the switches are set to 0, then the PGM output will be
coincidental with the analogue reference. The overall delay also depends on the number of
keyer cards present in the system. The Mixer card gives ½ line delay from switch setting and
each additional keyer card adds a further 1/8 line, when tuned to REF but can be set ½ line
earlier – so output is only 1/8 delayed from input.
Vision
Data acquisition period:
20ms
Rise and fall time:
<0.5ns (rise and fall shall not differ by > 0.25ns)
Jitter:
<0.5ns (<0.75ns with >200m input cable)
Audio
Sample rate
48kHz
Output Wordlength
24bit
Re-frame performance (mixer)
Re-framers on all inputs, outputs AES-11
compliant
Channel status data re-written
Transients
No disturbance in digital bitstream
Operating temperature
Range:
0
°
C to 40
°
C
Cooling:
Internal fans
