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DESCRIPTIONThe PCM3501 is a low cost, 16-bit CODEC designedfor modem Analog Front End (AFE) and speech processingapplicaTIons. The PCM3500’s low power operaTIonfrom +2.7V to +3.6V power supplies, alongwith an integrated power-down mode, make it ideal forportable applicaTIons.The PCM3501 integrates all of the functions needed fora modem or voice CODEC, including delta-sigmadigital-to-analog and analog-to-digital converters, inputanti-aliasing filter, digital high-pass filter for DCblocking, and an output low-pass filter. The synchronousserial interface provides for a simple, or glue-freeinterface to popular DSP and RISC processors. Theserial interface also supports Time Division Multiplexing(TDM), allowing up to four CODECs to share asingle 4-wire serial bus.
