Cobalt Digital OBSIDIAN 3G 9501-DCDA-3G Downconverter - Manual (Page 9)

9501DCDA-OM (V1.3) 9501-DCDA PRODUCT MANUAL 1-5
Introduction
9501-DCDA Functional Description
9501-DCDA Functional Description
Figure 1-1 shows a functional block diagram of the 9501-DCDA. The
9501-DCDA downconverter also includes embedded audio support and
de-embedding to AES and analog outputs, and analog composite video
outputs. 4x distribution amplifiers (DAs) are provided for both
down-converted SD-SDI and SD analog composite outputs. These outputs are
selected through four, 2:1 crosspoints allowing any combination of SD-SDI
or analog composite (CVBS) outputs on the four card processed video
outputs.
The 9501-DCDA also provides ARC processing and timecode/
closed-captioning conversion from packet-based timecode formats and
CEA608/708 HD formats to SD VITC-based (waveform) timecode and
line 21 closed captioning (available on both SDI and analog video outputs).
9501-DCDA Input/Output Formats
The 9501-DCDA provides the following inputs and outputs:
• Inputs:
• 3G/HD/SD SDI IN A / SDI IN B – two dual-rate HD/SD-SDI inputs
(GUI-selectable or basic failover)
• Outputs:
• PROCESSED VIDEO OUT (1-4) – via four independent 2:1
GUI-selectable mux crosspoints, each of the four BNC outputs can
independently be set as SD-SDI or analog composite (CVBS)
outputs
• RCK OUT (1-4) – four 3G/HD/SD-SDI reclocked buffered video
outputs
• AN-AUD OUT (1-4) – four balanced analog audio outputs (0 dBFS
=> 24 dBu)