TLV320AIC29_15 Datasheet, PDF (1/88 Pages) Texas Instruments – STEREO AUDIO CODEC WITH INTEGRATED HEADPHONE AND SPEAKER AMPLIFIERS

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TLV320AIC29
SLAS494B − DECEMBER 2005 − REVISED OCTOBER 2007
STEREO AUDIO CODEC WITH INTEGRATED HEADPHONE AND
SPEAKER AMPLIFIERS
FEATURES
D Stereo Audio DAC and Mono Audio ADC
Support Rates Up to 48 ksps
D High Quality 95-dB Stereo Audio Playback
Performance
D MIC Preamp and Hardware Automatic Gain
Control With Up to 59.5-dB Gain
D Stereo 16-W Headphone Amplifier With
Capless Output Option
D 400-mW 8-W Audio Power Amp With Direct
Battery Supply Connection
D 32-W Differential Earpiece Driver
D Differential Interface to Cellular Phone
Module
D Integrated PLL For Flexible Audio Clock
Generation
D Low Power 19-mW Stereo Audio Playback at
48 ksps and 3.3-V Analog Supply level
D Programmable Digital Audio Bass/Treble/
EQ/De-Emphasis
D Auto-Detection of Jack Insertion, Headset
Type, and Button Press
D Direct Battery Measurement Accepts Up to
6-V Input
D On-Chip Temperature and Auxiliary Input
Measurement
D Programmable Measurement Converter
Resolution, Speed, Averaging, and Timing
D SPI and I²S Serial Interfaces
D Full Power-Down Control
D 48-Pin QFN Package
APPLICATIONS
D Personal Digital Assistants
D Cellular Smartphones
D Digital Still Cameras
D Digital Camcorders
D MP3 Players
DESCRIPTION
The TLV320AIC29 is a low-power, high-performance
audio codec with 16/20/24/32-bit 95-dB stereo playback,
mono record functionality at up to 48 ksps. Two
microphone inputs include independent programmable
bias voltages, built-in pre-amps, and hardware automatic
gain control, with single-ended or fully-differential signal
input capabilities.
The stereo 16-Ω headphone drivers on the AIC29 support
capless as well as ac-coupled output configurations. An
8-Ω BTL differential speaker driver provides up to 400 mW
of power and 98-dB SNR, while a differential driver is also
available for driving a 32-Ω speaker or telephone earpiece.
A programmable digital audio effects processor enables
bass, treble, midrange, or equalization playback
processing. The digital audio data format is programmable
to work with popular audio standard protocols (I²S, DSP,
left/right justified) in master or slave mode, and also
includes an on-chip programmable PLL for flexible clock
generation capability. Highly configurable software power
control is provided, enabling 48 ksps stereo audio
playback to 16-Ω headphones at 19 mW with a 3.3-V
analog supply level.
The AIC29 offers a 12-bit measurement ADC and internal
reference voltage. It includes an on-chip temperature
sensor capable of reading 0.3°C resolution, as well as a
battery measurement input capable of reading battery
voltages up to 6 V, while operating at an analog supply as
low as 3 V. The AIC29 is available in a 48-lead 7 x 7 mm
QFN package.
US Patent No. 624639
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.
SPI is a trademark of Motorola, Inc. I2S is a trademark of Philips Corporation.
PRODUCTION DATA information is 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.
Copyright  2005 − 2007 Texas Instruments Incorporated