Table of Contents
Advertisement
1.
OVERVIEW
The 7712HDC 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 7712HDC accepts all the major HD video formats as shown in Table 2 and provides extensive
control over the downconversion process.
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 7712HDC provides card edge LEDs to indicate signal present, genlock present and audio groups
present. The 7712HDC has color 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 7712HDC is available in two versions to support a wide variety of customer applications.
Model
7712HDC-S
7712HDC-SN-EAES4
The 7712HDC-SN-EAES4 version de-embeds two groups of audio and re-embeds the audio on the SDI
output in time with the video.
7712HDC-SN-EAES4 also handles VANC data like captioning and timecode on the HD and moves it onto
the SDI outputs.
The 7712HDC 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
(EAES4 version only)
•
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 1.2
7712HDC HD Broadcast Quality Down Converter
When the 7712HDC-SN-EAES4 version downconverts
Embedded
In
---
2
2 groups
7700 MultiFrame Manual
Audio
Embedded
AES
Out
Out
---
2 groups
4
TimeCode/
Captions
Yes
7712HDC-1
Advertisement
Table of Contents
