TCM320AC38 Datasheet (Texas Instruments) - VOICE-BAND AUDIO PROCESSORS

TCM320AC38, VOICE-BAND AUDIO PROCESSORS

The TCM320AC38 and TCM320AC39 voice-band audio processor (VBAP) integrated circuits are designed to perform the transmit encoding (A /D conversion) and receive decoding (D/A conversion) together with transmit and receive filtering for voice-band communications systems.

Cellular telephone systems are

D Single 5-V Operation D Low Power Consumption: Operating Mode .

40 mW Typ Standby Mode .

5 mW Typ Power-Down Mode .

3 mW Typ D Combined A/D, D/A, and Filters D Extended Variable-Frequency Operation Sample Rates up to 16 kHz Pass-Band up to 7.2 kHz D Electret Microphone Bias Reference Voltage Available D Drive a Piezo Speaker Directly D Compatible With All Digital Signal Processors (DSPs) TCM320AC38, TCM320AC39 VOICE-BAND AUDIO PROCE