TSC2301IPAGG4

Overview

The TSC2301IPAGG4 is a programmable touch screen controller with an integrated stereo audio codec, manufactured by Texas Instruments. It features a 12-bit SAR ADC for resistive touch screens with sampling rates up to 125 kHz and a 20-bit delta-sigma audio codec supporting up to 48 kHz sampling. The device operates on a single 2.7 V to 3.6 V supply and includes battery monitors, temperature sensing, and a 4x4 keypad interface. Communication is handled via SPI for control and I2S for audio data. It is housed in a 64-lead TQFP package.

Feature Summary

• Integrated 12-bit SAR ADC for touch screen position and pressure measurement with programmable resolution (8/10/12 bits) and sampling rates up to 125 kHz.
• High-performance 20-bit stereo audio codec with dynamic range of 98 dB, supporting microphone inputs, line outputs, and headphone drivers at up to 48 kHz.
• Includes dual battery voltage monitors (up to 6 V input), on-chip temperature sensor with 0.3 °C resolution, and a 4x4 keypad scanner with programmable debounce.
• Interfaces via standard SPI for host control and I2S for digital audio transfer, featuring internal timing control to reduce host CPU overhead.

Applications

• Personal Digital Assistants (PDAs)
• Cellular Phones
• MP3 Players
• Internet Appliances
• Smartphones

Procurement Notes

Verify the specific ordering suffix GG4 corresponds to the Tray transport media containing 160 units as listed in the packaging information. Confirm the operating temperature range is -40 °C to +85 °C for the IPAG variant. Ensure compatibility with the 64-pin TQFP footprint during PCB design.

Selection Notes

Select this component when a single IC is required to manage both resistive touch screen inputs and high-fidelity stereo audio processing. It is suitable for designs needing low power consumption with full power-down modes and integrated headphone amplifiers. Verify that the host system supports SPI and I2S protocols for proper integration.

Part Context

This part belongs to the TSC2301 series from Texas Instruments, designed as a highly integrated analog interface circuit for human interface devices. It combines touch screen conversion, keypad scanning, and audio codec functionalities into one package to simplify system architecture for portable electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Texas Instruments for current cross-reference data if alternative sourcing is required.