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AT2008 Datasheet

  • AT2008

  • 8 Channels ADPCM Processor

  • 19頁

  • ETC

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AT2008
8 Channels ADPCM Processor
Atelic Systems, Inc.
AT2008 Application Note
Preliminary
8 Channels ADPCM Processor
Version 1.0 January 29, 2001
Description
The AT2008 is an eight full-duplex channels ADPCM processor. It follows the G.726 ITU Standard for ADPCM
compression for 40k, 32k, 24k and 16k bit rates with selectable
碌-law
and A-law input/output. This chip can operate on 16
channels of PCM to ADPCM compression, 16 channels of ADPCM to PCM decompression, 8 channels of full-duplex
operation in an 8KHz frame basis, or any combination of M-channels of compression plus N-channels of decompression
when M+N <= 16. Using the 3-wire command serial port, each individual half-channel can be dynamically configured to
perform the ADPCM algorithm at different bit rates, idle or reset of the algorithm. It can also be programmed to set up
different input/output time slots, or to select, (1) bypass without compression, (2) idle, or (3) reset of the algorithm.
Features
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8 full channels of ITU G.726 ADPCM
ADPCM coding and decoding with bypass mode
Per channel selectable
碌-Law
and A-law input/output
Up to 8 synchronous signals for direct interface with popular combo/codec.
On-chip time slot assignment
Available internal clock generator and frame sync. generator
Simple 3-wire serial command port for chip configuration
On-chip power-up/power down/reset
The two clock pins (CLKA and CLKP) used as PCM/ADPCM data clocks, and the FSY pin used for Frame Sync signals
can be programmed to become either as input pins or as output pins. (The defaults are as input pins).
Applications
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DECT
VoIP / VoDSL
Wireless PBX systems
Default Settings
3-wire serial command is required to configure the chip running ADPCM in 8 full channels.
Page 1 of 19
漏2001 Atelic Systems, Inc.

AT2008相關(guān)型號PDF文件下載

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  • 英文版
    BEZEL BLACK FOR MLW SERIES
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    BEZEL WHITE FOR MLW SERIES
  • 英文版
    SW CAP .787" BEZEL RED
  • 英文版
    SW CAP .787" BEZEL AMBER
  • 英文版
    SW CAP .787" BEZEL YELLOW
  • 英文版
    SW CAP .787" BEZEL GREEN

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