Audio Codec 2ADC / 2DAC 32-Bit 48-Pin VQFN EP T/R

The TLV320AIC28 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 16O. headphones at 19 mW with a 3.3-V analog supply level. The AIC28 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 AIC28 is available in a 48-lead 7 x 7 mm QFN package. 

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 16O Headphone Amplifier With Capless Output Option

400-mW 8O Audio Power Amp With Direct Battery Supply Connection

32O Differential Earpiece Driver

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