TMA568-70BUI58CB

Overview

The TMA568-70BUI58CB is a capacitive touchscreen controller from the TrueTouch Gen5 family, originally developed by Cypress Semiconductor and now part of Infineon Technologies. It features an all-new analog front end combining narrow-band response with high-frequency sampling and hardware DSP filtering for superior noise immunity. The device supports up to 10 simultaneous fingers, hover detection up to 10 mm, and 2-mm passive stylus input with palm rejection. It eliminates charger noise up to 40 Vpp at 1–500 kHz and supports display sizes up to 8.3 inches with screen inputs up to 58.

Feature Summary

• Charger Armor technology provides immunity to charger noise up to 40 Vpp (1–500 kHz).
• Supports hover functionality, tracking fingers up to 10 mm above the surface.
• Enables 2-mm passive stylus support with built-in palm rejection.
• Features DualSense architecture for best-in-class waterproofing and glove tracking.

Applications

• Smartphones and superphones
• Tablets and e-readers
• Wearables

Procurement Notes

Verify component authenticity through authorized Infineon or Cypress distribution channels. Confirm that the ordering suffix corresponds to the specific package and tape-and-reel configuration required for your assembly line. Ensure compliance with RoHS directives as specified in the official datasheet.

Selection Notes

Select the TMA568 for designs requiring support for screens larger than 5 inches, up to 8.3 inches. This model is appropriate when advanced features such as hover, thick-glove operation, and high-noise immunity are necessary. Compare against the TMA545 or TMA525 if smaller form factors or lower power consumption are prioritized over large-screen support.

Part Context

This component belongs to the TrueTouch TMA5XX series, representing the fifth generation of Cypress/Infineon capacitive touch controllers. The TMA568 variant specifically expands the platform with 58 sense I/Os to accommodate larger displays compared to the TMA545 or TMA525 models within the same family.

Replacement Considerations

The TMA545 and TMA525 are related members of the TMA5XX family but offer fewer sense inputs. Verify interface compatibility and pinout differences before substituting, as these variants target different screen size requirements and feature sets.

FAQ

What is the maximum screen size supported by the TMA568?

The TMA568 supports screen sizes up to 8.3 inches, making it suitable for tablets and superphones.

Does the TMA568 support passive stylus input?

Yes, it supports 2-mm passive stylus input with 1-mm accuracy and linearity, along with built-in palm rejection.

How does the TMA568 handle charger noise?

It utilizes Charger Armor technology to eliminate charger noise up to 40 V peak-to-peak in the frequency range of 1 to 500 kHz.