描述 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- 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.

特性 Features

? Stereo Audio DAC and Mono Audio ADC Support Rates Up to 48 ksps
? High Quality 95-dB Stereo Audio Playback Performance
? MIC Preamp and Hardware Automatic Gain Control With Up to 59.5-dB Gain
? Stereo 16- Headphone Amplifier With Capless Output Option
? 400-mW 8- Audio Power Amp With Direct Battery Supply Connection
? 32- Differential Earpiece Driver
? Differential Interface to Cellular Phone Module
? Integrated PLL For Flexible Audio Clock Generation
? Low Power 19-mW Stereo Audio Playback at 48 ksps and 3.3-V Analog Supply level
? Programmable Digital Audio Bass/Treble/EQ/De-Emphasis
? Auto-Detection of Jack Insertion, Headset Type, and Button Press
? Direct Battery Measurement Accepts Up to 6-V Input
? On-Chip Temperature and Auxiliary Input Measurement
? Programmable Measurement Converter Resolution, Speed, Averaging, and Timing
? SPI? and I2S? Serial Interfaces
? Full Power-Down Control
? 48-Pin QFN Package
? APPLICATIONS
? Personal Digital Assistants
? Cellular Smartphones
? Digital Still Cameras
? Digital Camcorders
? MP3 Players

US Patent No. 624639 SPI is a trademark of Motorola, Inc. I2S is a trademark of Philips Corporation.