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1.
OVERVIEW
The 7711HDC High Definition Downconverter provides broadcast quality down conversion of your
1.5 Gb/s HDTV signals. This High Definition Downconverter has 10-bit processing with Serial Digital &
optional Composite Analog outputs and is designed to fit easily into a plant that is fully digital, analog or
mixed. The 7711HDC accepts all the major HD video formats as shown in Table 3-1 and provides
extensive control over the downconversion process. When the 7711HDC downconverts 1080p/24sf input
video to 525i/60 with a 3:2, the 3:2 pulldown can be free run or locked to embedded RP188 or an external
6Hz input.
The 7711HDC provides card edge LEDs to indicate signal present, genlock present and audio groups
present. The 7711HDC has colour space conversion from ITU rec. 709 to ITU rec. 601, and will provide
various down converted formats such as 16:9 letterbox, 14:9 letterbox, 13:9 letterbox, 4:3 center crop, and
4:3 anamorphic squeeze.
The 7711HDC is available in two versions to support a wide variety of customer applications.
Model
7711HDC-S
7711HDC-SN-EAES4
The 7711HDC-SN-EAES4 version de-embeds two groups of audio and re-embeds the audio on the SDI
output in time with the video.
7711HDC-SN-EAES4 also handles VANC data like captioning and timecode on the HD and moves it onto
the SDI outputs.
The 7711HDC occupies two card slots in the 3 RU frame, which will hold up to 15 modules or one slot in
the 1RU frame, which will hold up to three modules.
Features:
•
Broadcast quality HD -> SD down conversion
•
Optional broadcast quality analog outputs
•
Supports 16:9 letterbox, 14:9 letterbox, 13:9 letterbox, 4:3 center crop, and 4:3 anamorphic squeeze
aspect ratio conversions
•
1080p/24sF conversion to 525i/60 with 3:2 pulldown sequence determined by RP188 or 6Hz input
•
HD to SD colour space conversion (ITU rec. 709 to ITU rec. 601)
•
Reference input allows for phasing of output video
•
Module supports min. delay or variable delay for video output without reference
•
Module supports video output referenced to genlock with variable delay
•
Analog monitor output on screen display used to configure the operating modes
•
EAES4 version de-embeds Audio from HD video and embeds into SD video (2 groups)
•
EAES4 version moves VANC data (e.g. captioning, timecode) from the HD video onto the SDI outputs
•
VistaLINK
- enabled offering remote monitoring, control and configuration capabilities via SNMP.
®
VistaLINK
is available when modules are used with the 3RU 7700FR-C frame and a 7700FC
®
VistaLINK
Frame Controller module in slot 1 of the frame
®
Video
Monitor
Broadcast
SDI
Analog
Analog
2
2
2
2
The audio is also available as 4 unbalanced AES outputs. The
Revision 1.1
7711HDC HD Broadcast Quality Down Converter
Embedded
In
---
2
2 groups
7700 MultiFrame Manual
Audio
Embedded
AES
Out
Out
---
2 groups
4
7711HDC - 1
TimeCode/
Captions
Yes
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