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AD1843JS Datasheet - ADI

Part Name
Description
MFG CO.
AD1843JS
ADI
Analog Devices ADI
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GENERAL PRODUCT DESCRIPTION
The AD1843 SoundComm™ Codec is a complete analog front end for high performance DSP-based telephony and audio applications. The device integrates the real-world analog I/O requirements for many popular functions thereby reducing size, power consumption, and system complexity.

FEATURES
  Single Chip Integrated Speech, Audio, Fax and Modem Codec
  Highly Configurable Stereo ∑∆ ADCs and Quad ∑∆ DACs
  Supports V.34, V.32bis, and Fallback Modem Standards As Well As Voice Over Data
  Dual Digital Resamplers with Programmable Input and Output Phase and Frequency
  Three On-Chip Phase Lock Loops for Synchronization to External Signals, Including Video
  Thirteen Analog Inputs and Seven Analog Outputs
  Advanced Analog and Digital Signal Mixing and Digital to-Digital Sample Rate Conversion
  Programmable Gain, Attenuation and Mute
  On-Chip Signal Filters
    Digital Interpolation and Decimation
    Analog Output Low Pass
  1 Hz Resolution Programmable Sample Rates from 4 kHz to 54 kHz Derived from a Single Clock Input
  80-Lead PQFP and 100-Lead TQFP Packages
  Operation from +5 V or Mixed +5 V/+3 V Supplies
  FIFO-Buffered Serial Digital Interface Compatible with ADSP-21xx Fixed-Point DSPs
  Advanced Power Management
  VHDL Model of Serial Port Available; Evaluation Board and MAFE Board Available

 

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