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1.
OVERVIEW
The 7751SRG-HD generates various analog bi-level and tri-level sync signals for both HD and SD
applications. The 7751SRG-HD provides an analog genlock input that allows you to synchronize the sync
signals to your plant horizontal and vertical timing.
The 7751SRG-HD generates all analog sync signals defined by SMPTE 274M (1080i/p except 50/59.94
and 60p) and 296M (720p) as well as those required for NTSC, PAL and slow PAL (625i/48) applications.
Sync signals generated for NTSC, PAL and slow PAL applications are sync signals only and do not
include colour burst signals. The four independent sync outputs can be configured to output different sync
signals. The common combinations of HDTV and SD analog sync outputs can be selected via card edge
control.
In conjunction with the 7700ADA Analog Distribution Amplifier and the 7750TG2-HD HDTV Test Signal
Generator, this module will fulfill all of your slave sync generation requirements. (PKG7752RGTS-HD
system brochure for details on our HDTV Reference Generator Test Set System applications)
Features:
• NTSC or PAL colour black genlock or free-runs with no genlock reference
• Phase adjustment of outputs with respect to genlock input
• Selectable frame rate divisor of 1 or 1/1.001
• Wide variety of 1080I, 1035I, 1080p, 720p, NTSC, PAL and slow PAL sync output sync signals (no
colour burst on NTSC, PAL and slow PAL sync signals)
• HSDL tri level sync for 2K data transfers
• 4 separate analog sync signal outputs
• 8 position DIP switch selects combinations of sync signals available
• Card edge LEDs indicate genlock presence, module fault
• 6Hz or 1Hz TTL pulse shows relationship between HD & SD Sync outputs
• VistaLINK
-capable offering remote control and configuration capabilities via SNMP (using
®
VistaLINK
PRO, 9000NCP or 9000NCP2 Network Control Panel) is available when modules are
®
used with the 3RU 7800FR frame and a 7700FC VistaLINK
frame
Gen Lock
Separator
Sync
Sync Pulse
Generator
Gen Lock
Card Edge
Module
Present
Control
Status
Figure 1-1: 7751SRG-HD Block Diagram
7751SRG-HD HD-SDI Tri-Level Sync Generator
Frame Controller module in slot 1 of the
®
D to A
Converter
D to A
Converter
D to A
Converter
Divisor
D to A
Converter
Revision 1.5.2
7700 MultiFrame Manual
Cable
Driver
Cable
Driver
Analog Sync
Outputs
Cable
Driver
Cable
Driver
Page - 1
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