Sierra Video ADC-142 - Manual (Page 6)

Page 6 of 29 ADC-142 Owner’s Manual •••• (V 2.1)
Introduction
In This Chapter
This chapter includes the following sections:
• A Word of Thanks
• Overview
• Functional Block Diagram
• Supported Audio and Video Formats
• Documentation Terms
A Word of Thanks
Congratulations on choosing the openGear
TM
ADC-142 Analog to Digital Converter with Audio
Embedding and Frame Sync. The ADC-142 is part of a full line of modular conversion gear for
broadcast TV environments. The Sierra Video Systems openGear
TM
line includes video decoders and
encoders, audio embedders and de-embedders, distribution amplifiers, format converters, and much
more. Sierra openGear
TM modular conversion gear will meet your signal conversion needs now and
well into the future.
Should you have questions pertaining to the installation or operation of your ADC-142, please contact
us at the numbers listed on the back cover of this manual. We are happy to help with any questions
regarding this or any other openGear
TM
card.
Overview
The ADC-142 is a high quality format converter that also includes a full 16 channel audio embedder, a
12-bit analog to digital video converter, a 8 channel 24-bit balanced analog to digital audio converter,
and a full video frame synchronizer.
The ADC-142 has a full featured, high quality, 12-bit analog to 10-bit serial digital converter. The dual
rate HD/SD analog video input can accept all common analog video formats and will autodetect
between HD and SD.
The embedder functions like an audio router internal to the card. On the input side of the router are the
up to 16 channels (8 pairs) of discrete AES input, up to 8 channels of differential analog audio input.
On the output side are the up to 16 channels of embedded AES audio, and the up to 16 channels (8
pairs) of discrete AES output. The router acts as a full audio cross point: each of the 32 output channels
(16 embedded AES, 16 discrete AES) can receive signal from any one of the 29 (16 discrete AES, 8
Analog, 4 tone generator, 1 silence) input channels. Each output also allows gain adjustment and
optional polarity inversion.