TSC2301IGQZR

Overview

The TSC2301IGQZR is a highly integrated analog interface circuit manufactured by Texas Instruments, designed for personal digital assistants and mobile devices. It combines a 12-bit SAR touch screen controller with a 20-bit stereo audio codec. The device supports SPI communication for touch data and I2S for audio streams. Key electrical parameters include a supply voltage range of 2.7 V to 3.6 V, programmable sampling rates up to 125 kHz for the touch interface, and up to 48 kHz for the audio codec. It features an internal oscillator, battery monitors, and temperature sensing capabilities.

Feature Summary

• Integrated 12-bit SAR ADC for resistive touch screen coordinate and pressure measurement
• 20-bit delta-sigma stereo audio codec with dynamic range of 98 dB and 48 kHz sampling rate
• Stereo headphone amplifier capable of driving 16-ohm loads
• On-chip crystal oscillator and programmable PLL for audio clock generation

Applications

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

Procurement Notes

Verify the ordering suffix 'R' indicates tape and reel packaging containing 2500 units per reel. Confirm the 'GQZ' package designation corresponds to the 120-ball MicroStar Junior BGA form factor. Ensure the operating temperature range matches the industrial specification of -40°C to +85°C for the specific batch requirements.

Selection Notes

Select this component when a single IC solution is required for both resistive touch input and high-fidelity stereo audio output. The 120-ball BGA package is suitable for high-density PCB layouts. Consider the power consumption profiles if battery life is critical, as the device offers full power-down modes. Verify host processor compatibility with SPI and I2S interfaces.

Part Context

The TSC2301 belongs to the TSC2301 family of programmable touch screen controllers with audio codecs. The IGQZR variant specifically denotes the industrial temperature grade (-40°C to +85°C) and the tape-and-reel shipping method in the 120-ball VFBGA package. Other variants in the series include TQFP packages such as the IPAG.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Texas Instruments for current cross-reference information or evaluate other members of the TSC2301 family if pinout compatibility is required.