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Broadcast Pix
V5
1.9 Input Timing
Reference
The Broadcast Pix Switcher can auto-detect external reference, either analog blackburst or
Tri-Level sync in these formats: 480i29.97 (NTSC), 720p59.94, 1080i59.94, 1080p29.97,
1080PsF29.97, 576i25 (PAL), 720p50, 1080i50, 1080p25, 1080PsF25
.
If no reference is connected, the Granite Switcher will generate internal sync. In this mode
the 3 Ref outputs on the Granite switcher can output blackburst to external equipment. The
Ref out LED will illuminate orange when outputting blackburst.
On Reference boards shipped after March 1, 2011, the reference outputs can output the
format of the input signal. The Ref out LED will illuminate orange when outputting blackburst,
green when outputting 720p and blue when outputting 1080i.
Synchronous Inputs
All Granite systems work well with all video inputs that accept a reference input for genlock,
including broadcast cameras, tape recorders, servers, etc. The timing window for genlocked
sources is +/- 10 lines. The delay through the Granite system on synchronous sources is 1
frame, even if the image is inside a DVE box (picture in picture).
Asynchronous Inputs
The system will also accept and self time asynchronous sources, such as a DVD player. All
11/22 live inputs accept asynchronous inputs. The delay through the Granite system on
asynchronous sources is 2 frames.
1.9