Grass Valley ADX-171p - Manual (Page 8)

ADX-171P - Guide to Installation and Operation
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1 ADX-171p Miniature Analog Audio Demultiplexer
1.1 Introduction
The ADX-171p is a member of the picoLink family of miniature
products. The ADX-171p Analog Audio DEMUX is the world’s
smallest audio demultiplexer, packing both audio extraction and
20 bits quality D to A conversion in a very compact unit. The
ADX-171p can extract either AES pair from any of the 4 embed-
ded audio groups in a 4:2:2 video stream. The full scale output
level (0 dBFS) can be set at 20, 22 or 24 dBU. The ADX-171p
provides a re-clocked serial digital output and is ideal for stand-
alone monitoring and DEMUX application.
Figure 1.1 Functional Block Diagram
1.2 Features
- Serial 4:2:2 input detection
- Automatic 525/625 input detection
- 20-bit high-quality digital to analog audio conversion
- AES1/AES2 audio channel pair selection
- Selectable group 1,2,3 or 4 extraction
- Selectable +24 dBu, +22 dBu or +20 dBu output level range
(0 dBSF)
- Single stereo/2 monaural analog audio output
- Synchronous & asynchronous audio capability
- Valid input signal LED