5700MSC-IP
IP Network Grand Master Clock & Video Master Clock System
Revision 0.2 Page - 17
3. THEORY OF OPERATION
The 5700MSC-IP is equipped with six programmable sync outputs along with a 10MHz and a
Wordclock output. When equipped with a test generator option (+SDI-TG, +10G-TG, +AUX),
analog/digital audio and analog/digital video outputs will be available.
3.1. OUTPUTS
3.1.1. Sync Outputs
The sync output section provides six sync outputs along with a 10MHz and a Wordclock output. The
10MHz and Wordclock outputs can be configured as additional sync outputs, if required. All sync
outputs are generated from the master oscillator and will be locked in frequency to the selected
reference. Most sync output types will be phase locked to the reference, depending on the reference
type and the phase information supplied. When a video sync mode is selected, an independent phase
offset can be applied to the output. The sync outputs are configured from the OUTPUT root menu.
All sync outputs are fully programmable to output several different sync formats by changing the sync
mode. The different output modes are described below.
Black Burst Signals
NTSC-M
PAL-B
There are two color black output modes, one in NTSC-M format and the other in
PAL-
B format. These modes are referred to as “black burst” or “color black”
because
they contain black video and have a colorburst to provide a colorframe
reference. Vertical Interval Time Code (VITC) can be inserted on up to two lines in
these modes. Additionally, a SMPTE ST 318 ten-
field reference can be inserted
onto line 15 for the NTSC-
M output mode. Both these outputs modes can be
phased independently over the entire color frame sequence.
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