Cobalt Digital Inc 9902-DC-4K Product Manual page 34

Quad-input 3g/hd uhd broadcast downconverter with optional frame sync
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3
Table 3-1
9902-DC-4K Function Menu List — continued
•Video Lock Mode Select
• Frame Delay Control
HDMI controls described below provide settings to force an HDMI or DVI output suitable for direct connection to monitors using
a DVI input in case the connection is not detected by the monitor. Also provides color mode controls to match HDMI/DVI output
to the color space of the monitor.
• Mode Control
• Format Manual (Forced) Mode Controls
Note: The HDMI output on this card conforms with CEA-861D HDMI audio channel line-up specifications. As such, a swap
between the C and LFE channels for the HDMI output is automatically performed.
If connecting to a device that does not meet CEA-861D HDMI, a Ch3 / Ch4 swap using the Output Audio Routing/Controls may
be required to effect desired C - LFE line-up.
3-10
(continued)
(Option +FS) Selects lock to reference functions from the choices shown
and described below.
• Lock to Reference: Quadrant inputs and output video is locked to
selected external reference (Ref 1 or Ref 2) received on the frame
reference bus, else input.
• Lock to Input A: Uses Input A program video input video signal as
the reference standard, else free-run.
• Free Run: Quadrant inputs and output video is locked to the card's
internal clock. Output video is not locked to external reference.
Note: Lock to reference provides the most stable operation, and is
preferred where available. In this case, source video should also be
locked to the same reference.
When Framesync is enabled, specifies the smallest amount of latency
delay (frames held in buffer) allowed by the frame sync. The frame sync
will not output a frame unless the specified number of frames are captured
in the buffer.
Sets HDMI/DVI output to use the connected monitor to inform
9902-DC-4K to automatically detect the monitor format, or to use manual
(forced) control.
Where the monitor may not be able to provide this handshake signal, it is
recommended to use Manual mode and force the desired mode as
described below.
When Mode control is set to Manual, allows setting HDMI output as
forced HDMI or DVI mode.
Also when in manual mode, allows setting HDMI output colorspace as
either forced YCbCr or RGB.
SDI SMPTE
9902-DC-4K
Convention
Conversion
L
R
C
LFE
Ls
Rs
9902-DC-4K PRODUCT MANUAL
9902-DC-4K Function Menu List and Descriptions
Automatic Re-Line-up
to CEA-861 Convention
L
R
LFE
C
Ls
Rs
9902DC4K-OM (V1.5)

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