Cobalt Digital OBSIDIAN 3G 9502-DCDA-3G Downconverter - Manual (Page 9)

9502DCDA-OM (V1.3) 9502-DCDA PRODUCT MANUAL 1-5
Introduction
9502-DCDA Functional Description
9502-DCDA Functional Description
Figure 1-1 shows a functional block diagram of the 9502-DCDA. The
9502-DCDA downconverter also includes embedded audio support and
de-embedding to AES outputs. 4x distribution amplifiers (DAs) are provided
for the card down-converted HD/SD-SDI output.
The 9502-DCDA also provides ARC processing and timecode/
closed-captioning conversion from packet-based timecode formats and
CEA608/708 HD formats to HD ATC, SD_ATC, and SD VITC-based
(waveform) timecode. Closed captioning from CEA708 to HD formats and
line 21 SD closed captioning are available on the processed HD-SD-SDI
outputs.
9502-DCDA Input/Output Formats
The 9502-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:
• HD/SD-SDI OUT (1-4) – four dual-rate HD/SD-SDI buffered video
outputs
• RCK OUT (1-4) – four 3G/HD/SD-SDI reclocked buffered video
outputs
• AES OUT (1-8) – eight AES-3id (coaxial 75
Ω) outputs (16 AES
channels)