Audio Codec 1ADC / 2DAC 12-Bit 48-Pin VQFN EP T/R

The TSC2111 is a low-power highly integrated high performance codec and touch screen controller, which supports stereo audio DAC, mono audio ADC and SAR ADC. The TSC2111 features a high-performance audio codec with 16, 20, 24, or 32-bit stereo playback, mono record functionality at up to 48 ksps. The device integrates several analog features such as support for headset interface, cellular headset interface, microphone interface, and speaker and receiver drivers. The device supports auto detection of headset and button press without any glue logic. The TSC2111 has fully programmable audio. 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 PLL for flexible clock generation capability. The TSC2111 contains a 12-bit 4-wire resistive touch screen converter complete with drivers, and interfaces to the host controller through a standard SPI serial interface. The on-chip processor provides extensive features specifically designed to reduce host processor and bus overhead, with capabilities that include fully automated operating modes, programmable conversion resolution up to 12 bits, programmable sampling rates up to 125 kHz, programmable conversion averaging, and programmable on-chip timing generation. The TSC2111 offers battery measurement inputs capable of reading battery voltages up to 6 V, while operating at only 3 V. It also has an on-chip temperature sensor capable of reading 0.3°C resolution. The TSC2111 is available in a 48-lead QFN.

Stereo Audio DAC and Mono ADC Support Rates Up to 48kHz

High Quality 95dB Stereo Audio Playback Performance

Low Power 19-mW Stereo Audio Playback at 48kHz Sample Rate and 3.3V Analog Supply Level

Programmable Digital Audio Effects/Bass/Treble/EQ/De-Emphasis Filters

Programmable Gain Amplifiers

MIC Preamp and Hardware Automatic Gain Control With Up to 59.5dB Gain

32-O Stereo Headphone Driver With Support for Both Cap or Capless Option

Cellular Headset Interface

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

32-O Differential Earpiece Driver

Differential Interface to Cellular Phone Module

Auto-Detection of Headset and Button Press

Programmable Audio Routing

4-Wire Touch Screen Interface

Integrated Touch Screen Processor With Fully Automated Modes of Operation

Programmable Converter Resolution, Speed, and Averaging

Programmable Autonomous Timing Control

Direct Battery Measurement Accepts up to 6-V Input

Built-In Buffer for Touch Screen Data

SPI™ Serial Interface

Low Power

Full Power-Down Control

48-Pin QFN Package

APPLICATIONS

• Personal Digital Assistants
• Smart Cellular Phones
• MP3 Players