5700MSC-IP
IP Network Grand Master Clock & Video Master Clock System
Revision 0.2 Page - 35
3.2.10. HD Tri-Level Genlock
Figure 3-10: Lock Diagram #4 – HD Tri-Level Genlock Operation
The 5700MSC-IP can lock to several different HD analog tri-level signals. The main oscillator
frequency is locked to the rising edge of the tri-level waveform. The phase information provided by tri-
level reference signals is limited and each signal standard can only be used to deterministically phase
lock standards of a similar frame rate. Lock diagram #4 above gives an example for 1080i/59.94 tri-
level sync. Refer to Table 3-5 for a summary on the phase locking capability with other tri-level
references.
It should be noted that tri-level references do not supply enough phase information to color frame
NTSC-M or PAL-B sync outputs. When multiple 5700MSC-IP units are locked to a tri-level source, the
33.36ms
1 Frame
Phase and Frequency Locked Outputs
NTSC-M
SD 525i/59.94
1080i/59.94
1080p/59.94
720p/59.94
1080p/29.97
29.97Hz LTC
Note: NTSC-M is field aligned
but is not color framed
Frequency Locked Outputs (Arbitrary Phase)
Slo-PAL 625i/47.95
DARS, AES, Wordclock
LTC 23.98Hz, 24Hz
LTC 25Hz, 30Hz
PAL Subcarrier
NTSC Subcarrier
1Hz Pulse
1/1.001Hz Pulse
6/1.001Hz Pulse
PAL Color Frame Pulse
PAL-B
SD 625i/50
HD 1080i/50
HD 1080p/25
HD 1080i/60
HD 1080p/30
HD 720p/50
HD 1080p/23.98(sF)
HD 1080p/24(sF)
Slo-PAL 625i/48
X YX
1080i/59.94
Reference In
Field1, Color Field 1 or 3
Random Phase
X Y
X Y X Y X Y X Y X Y X Y X Y X Y X Y
X Y X Y X Y X Y X Y X Y X Y X Y X Y X YX Y X Y X Y
NTSC-M Subcarrier
Output (3.57MHz)
Not Phase Locked
NTSC-M
Output
1080i/59.94
Output
720p/59.94
Output
LTC 29.97Hz
Output
DARS/AES
Outputs
48kHz
Wordclock
PAL-B
Output
X Y
4 5 6 4
5
Field1, Color Field 1 or 3
1
2 3 4 5 6 1 2 3 4
6 75432
1 654321
End of Sync Word
End of Sync Word
1
2 3 4 5 6
1 2 3
4
MASTER CLOCK/SPG
model 5601MSC
Frequency Locked, Random Phase
Random Phase
1080i/59.94
HD Tri-Level
Y
Field1
Field1
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