5700MSC-IP
IP Network Grand Master Clock & Video Master Clock System
Revision 0.2 Page - 33
3.2.9. PAL Video Genlock Operation
Figure 3-9: Lock Diagram #3 – PAL Genlock
Refer to Figure 3-9 for the timing relationship of signals when the 5700MSC-IP is locked to a PAL
black burst reference. The color frame sequence is decoded from the PAL reference and provides a 4
frame phase reference. As with NTSC references, the 5700MSC-IP locks to both the horizontal sync
edges and colorbursts of the PAL reference. If the Subcarrier to Horizontal sync error is higher than
30º the 5700MSC-IP will fall back to horizontal sync edge locking only. If the SCH error is higher than
50º, or the colorburst cannot be measured, the unit will report that the reference is unlockable.
160
ms
4 PAL Frames
Phase and Frequency Locked Outputs
PAL-B
SD 625i/50
HD 1080i/50
HD
1080p/50
HD 720p/50
HD 1080p/25
576p/50
LTC 25Hz
DARS, AES, Wordclock
PAL Color Frame Pulse
PAL Subcarrier
Frequency Locked Outputs
(Random Phase)
Slo-PAL 625i/48
Slo-PAL
625i/47
.95
480p/59.94
LTC 23.
98Hz,
29.97
Hz
LTC 24Hz, 30Hz
1Hz Pulse
1/1.
001Hz Pulse
6/1.001Hz Pulse
NTSC Subcarrier
NTSC-
M
SD 525i/
59.
94
HD 1080i/59.94
HD 1080p/59
.94
HD 720p/59.94
HD 1080i/60
HD 1080p/
30
HD 1080p/
23.98(sF)
HD 1080p/24(
sF)
X Y
PAL
-
B
Reference In
Frequency Locked,
Random Phase
Color Frame
1
Color Frame
1
Z Preamble
Z Y
X Y
X Y
X Y
X Y
PAL-B Subcarrier (U)
Output
(4
.43
MHz
)
PAL
-B
Output
1080i/50
Output
720p/50
Output
LTC
25Hz
Output
DARS/
AES
Outputs
48kHz
Wordclock
NTSC-
M
Output
Color Frame 1
Color Frame 1
6
7
5
4
3
2
1
6
5
4
3
2
1
End of Sync Word
End of Sync Word
Z Preamble
X Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
Z Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
X Y
AES Anchored to PAL
1
2
3
1
2
1
2
3
1
2
1
2
3
4
5
1
2
3
4
MASTER CLOCK/SPG
model 5601MSC
PAL
-
B
Black Burst
Color Frame 4
Color Frame 4