TSC2302IRGZR

Overview

The TSC2302 is a programmable touch screen controller with an integrated stereo audio codec. It features a 12-bit SAR ADC for resistive touch screens, supporting up to 125 kS/s sampling and 8-, 10-, or 12-bit resolution. The audio section includes a 20-bit delta-sigma codec with I2S interface, 48 kHz sampling, and a 16 W headphone driver. Additional functions include dual battery monitoring (up to 6 V), on-chip temperature sensing, and an 8-bit current DAC. Operating voltage ranges from 2.7 V to 3.6 V in a 48-lead QFN package.

Feature Summary

• Integrated 12-bit SAR ADC with programmable 8/10/12-bit resolution and 125 kS/s sampling rate
• 20-bit stereo audio codec with I2S interface, 98 dB dynamic range, and 16 W headphone amplifier
• Dual battery monitor inputs supporting voltages up to 6 V
• On-chip temperature sensor with 0.3°C resolution

Applications

• Personal Digital Assistants
• Cellular Phones
• MP3 Players
• Smartphones

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation. The 'RGZR' suffix indicates tape and reel packaging containing 2000 units. Confirm availability status as production data may vary by region.

Selection Notes

Select this component for applications requiring combined resistive touch control and high-fidelity audio processing. Ensure the host system supports SPI for touch data and I2S for audio streams. Verify that the 2.7 V to 3.6 V supply range matches the system power architecture.

Part Context

The TSC2302 belongs to Texas Instruments' family of highly integrated analog interface circuits for human interface devices. It combines touch screen processing with audio capabilities to reduce system component count in portable electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.