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.
Feature
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
