TSC2301IPAGR

Overview

The TSC2301IPAGR is a highly integrated analog interface circuit designed for human interface devices, featuring a 4-wire resistive touch screen controller and a stereo audio codec. It operates on a single 2.7-V to 3.6-V supply within the -40°C to 85°C temperature range. The device includes a programmable SAR ADC with 8-, 10-, or 12-bit resolution and sampling rates up to 125 kHz for touch and sensor inputs. The audio section comprises a 20-bit delta-sigma ADC/DAC with a dynamic range of 98 dB, supporting sampling rates up to 48 kHz via an I2S interface. Additional features include battery monitoring, temperature sensing, and keypad scanning.

Feature Summary

• Integrated 4-wire resistive touch screen controller with programmable resolution (8/10/12 bits) and pressure measurement capability.
• Stereo audio codec with 20-bit delta-sigma ADC/DAC, 98 dB dynamic range, and I2S serial interface.
• On-chip peripherals including two battery monitors (up to 6 V), temperature sensor (0.3°C resolution), and 4x4 keypad scanner.
• Standard SPI control interface with internal timing control to reduce host CPU overhead.

Applications

• Personal Digital Assistants (PDAs)
• Cellular phones
• MP3 players
• Internet appliances
• Smartphones

Procurement Notes

Verify the 'R' suffix indicates tape and reel packaging containing 1500 units per reel. Confirm the operating temperature range is industrial (-40°C to 85°C). Ensure the host system provides a 3.3 V digital supply compatible with the CMOS logic levels specified in the datasheet.

Selection Notes

Select this component when a combined touch input and low-power audio solution is required for portable devices. The TSC2301 supports both SPI for control and I2S for audio data, simplifying system architecture. Consider the 64-lead TQFP package availability if board space permits, as it offers easier manual handling compared to the BGA option.

Part Context

The TSC2301IPAGR is the tape-and-reel variant of the TSC2301 family, housed in a 64-pin Thin Quad Flatpack (TQFP) package. It is part of Texas Instruments' portfolio of PDA analog interface circuits, designed to replace discrete touch controllers and audio codecs in compact mobile designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Texas Instruments for current cross-reference data or newer generations of integrated interface controllers.