DRC

Left

DAC

+

+

*

DRC

Right

DAC

*

DAC Signal Proc.

Vol. Ctrl

Vol. Ctrl

-6...+29dB

1dB steps

-6...+29dB

1dB steps

HPL

HPR

miniDSP

SPI / I2C

Control Block

Pin Muxing/ Clock Routing

Secondary

I

Primary

I

Interrupt

Ctrl

ALDO

PLL

Mic Bias

INL

INR

SPI_Select

AVss

DVss

IOVss

DVdd

IOVdd

DMCLK/

MFP4

DMDIN/

MFP3

AVdd

LDOin

Dig.

Mic IF

Reset

miniDSP

DAC Signal Proc.

ADC Signal Proc.

Ref

TLV320AIC3253

www.ti.com

SLOS631 – MARCH 2010

Ultra Low Power Stereo Audio Codec With Embedded miniDSP

Check for Samples: TLV320AIC3253

1

FEATURES

APPLICATIONS

•

Mobile Handsets

2

•

Stereo Audio DAC with 100dB SNR

•

Communication

•

4.1mW Stereo 48ksps Playback

•

Portable Computing

•

PowerTune™

•

Extensive Signal Processing Options

DESCRIPTION

•

Embedded miniDSP

The TLV320AIC3253 (sometimes referred to as the

•

Stereo Digital Microphone Input

AIC3253) is a flexible, low-power, low-voltage stereo

•

Stereo Headphone Outputs

audio codec with digital microphone inputs and

programmable

outputs,

PowerTune

capabilities,

•

Low Power Analog Bypass Mode

fully-programmable miniDSP, fixed predefined and

•

Programmable PLL

parameterizable signal processing blocks, integrated

•

Integrated LDO

PLL, integrated LDO and flexible digital interfaces.

Extensive

register-based

control

of

power,

•

2.7mm × 2.7mm WCSP or 4mm × 4mm QFN

input/output channel configuration, gains, effects,

Package

pin-multiplexing and clocks is included, allowing the

device to be precisely targeted to its application.

Figure 1. Simplified Block Diagram

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerTune is a trademark of Texas Instruments.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2010, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.