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TCM320AC46 - GENERAL-PURPOSE AUDIO INTERFACE

General Description

The general-purpose audio interface for digital signal processors (DSPs) is designed to perform the transmit encoding (A/D conversion) and receive decoding (D/A conversion) together with transmit and receive filtering for voice-band audio systems.

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TCM320AC46 GENERAL-PURPOSE AUDIO INTERFACE FOR DSP • Single 5-V Operation • Low Power Consumption: Operating Mode . . . 55 mW Typ Standby Mode . . . 8 mW Typ Power-Down Mode . . . 3 mW Typ • Combined ADC, DAC, and Filters • Extended Variable-Frequency Operation Pass-Band up to 10 kHz • Electret Microphone Bias Reference Voltage Available • Directly Drives a Piezo Speaker • Compatible With All DSPs • Selectable Between 8-Bit, µ-Law Companded and 13-Bit Linear Conversion • Programmable Volume Control in Linear Mode • Designed for Standard 2.048-MHz Master Clock for U.S. Analog, U.S.