Genlock - Barco STELLAR User And Service Manual

A
N

Genlock

Interface specification
Video performance
VBI performance
Audio performance
Linear audio
performance
A-16
Genlock
Type of reference
Accepted line frequency tolerance
Type of connector
Number of reference inputs
Return loss using external 75 Ω termination
Nominal input level
Synchronization method
Delay adjustment
Synchronization method
Steady-state delay relative to video
Delay relative to video when
repeating or dropping a video frame
On secondary Layer II output
On secondary NICAM output
Steady-state delay relative to video
Delay relative to video when
repeating or dropping a video frame
PAL/NTSC composite sync with
black and burst
±0.1 Hz, both NTSC and PAL
BNC
One high-impedance allowing
loop-through via external T-con-
nector. Termination to be done
externally.
> 35 dB, 10 Hz to 5.5 MHz, with or
without power
0 dBV
Drop or repeat a video frame
Up to ±7 lines in steps of one
27 MHz clock period.
Drop or repeat VBI for the video
frame being dropped or repeated
respectively.
-20 to +40 ms on primary audio
output
±5 ms on secondary Layer II audio
output
Primary output: Defined by
decoder chip.
±45 ms up to 200ms (TBC) after
video genlock. Hereafter steady-
state delay is required.
As primary audio output.
±5 ms
±45 ms up to 200ms (TBC) after
video genlock. Hereafter steady-
state delay is required.