TSC2301IZQZR

Overview

The TSC2301IZQZR is a highly integrated analog interface circuit manufactured by Texas Instruments, designed for human interface devices. It combines a programmable resistive touch screen controller with a stereo audio codec. The device features an 8-bit DAC for LCD contrast control and supports SPI communication. Key electrical parameters include a supply voltage range of 2.7 V to 3.6 V, a maximum SAR sampling rate of 125 kS/s, and an audio codec sampling rate up to 48 kSps. It offers programmable ADC resolution of 8, 10, or 12 bits and includes internal battery monitors and a temperature sensor.

Feature Summary

• Integrated 20-bit delta-sigma stereo audio codec with I2S interface and dynamic range of 98 dB
• Programmable 4-wire resistive touch screen controller with pressure measurement capability
• Built-in keypad scanner supporting 4x4 matrix with programmable de-bounce and key masking
• On-chip temperature sensor with 0.3°C resolution and dual battery voltage monitors (up to 6 V)

Applications

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

Procurement Notes

Verify the specific ordering suffix 'ZQZR' corresponds to the tape and reel packaging quantity of 2500 units as documented in the manufacturer's ordering information. Confirm that the 'I' designation indicates the industrial operating temperature range of -40°C to +85°C. Ensure compatibility with the 120-ball MicroStar Junior BGA package dimensions for PCB layout.

Selection Notes

Select this component when a single IC solution is required for both touch input and audio processing in portable electronics. The TSC2301 reduces host CPU overhead through internal timing control and interrupt generation. Consider the 120-ball VFBGA package constraints if board space is limited compared to the 64-lead TQFP alternative.

Part Context

The TSC2301 series includes variants such as TSC2301IPAG (TQFP) and TSC2301IGQZ (VFBGA). The TSC2301IZQZR specifically denotes the industrial grade version in the 120-ball MicroStar Junior BGA package, supplied in a tape and reel format. This part number represents the final assembly configuration for mass production integration.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited. The TSC2301IGQZ serves as the tray-packaged equivalent in the same VFBGA-120 footprint. Other TSC series controllers like TSC2000 lack the integrated audio codec functionality.