PCM1870 datasheet(12/52 Pages) TI2

Part #	PCM1870

Description	16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier

PDF	52 Pages

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Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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Zero-Cross Detection

Power Up/Down for Each Module

Digital Interface

Power Supply

PCM1870

SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007

Zero-cross detection minimizes audible zipper noise while changing analog volume and digital attenuation. This

function can be applied to digital input or digital output by register 86 (ZCRS).

Using register 73 (PBIS), register 82 (PAIR, PAIL, PADS, PMCB, PADR, PADL), and register 90 (PCOM),

unused modules can be powered down to minimize power consumption (13 mW when recording only).

All digital I/O pins can interface at various power supply voltages. The VIO pin can be connected to a 1.71-V to

3.6-V power supply.

The VCC pin can be connected to 2.4 V to 3.6 V. The VDD pin and VIO pin can be connected to 1.71 to 3.6 V. A

different voltage can be applied to each of these pins (for example, VDD = 1.8 V, VIO = 3.3 V).

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PCM1870 Datasheet(PDF) 12 Page - Texas Instruments