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Shenzhen Mingjiada Electronics Original Infineon PSoC™ Automotive Multi-Touch 6XL Generation _CYAT81688-100AS77KH_Touch Screen Controller 2-Wire Capacitive I2C, SPI Interface 100-TQFP (14x14)

Product Description

The CYAT81688-100AS77KH is a capacitive touch screen controller that uses sensing and processing technology to determine and report the position of up to ten fingers on a touch screen. The touch screen controller converts an array of sensor capacitance to an array of digital values, which are processed by touch detection and position resolution algorithms in the controller. These algorithms determine the position and signal amplitude of each finger on the touchscreen.

Provided by Infineon:

- Application Firmware 

- Design Guidance for Sensors and FPCs 

- Touch Screen Sensor MTK 

The device contains a high-performance Arm® 32-bit CPU with an integrated hardware multiplication unit that controls all sensing and processes the measured capacitance results for tracking and reporting of touches. The controller is optimised for low power consumption and fast response times and has built-in support for manufacturing testing. The touchscreen controller communicates with the host via an I2 C slave interface at rates up to 400 kbps or an SPI interface at rates up to 8 Mbps.The CYAT81688-100AS77KH uses the touch subsystem to collect touchscreen sensor information. The touch subsystem consists of a 5 V TX pump, TX driver, RX channel, and programmable transmit/receive (TX/RX) multiplexer. The multiplexer electrically connects the analogue front end of each RX channel and TX driver to the corresponding row and column electrodes of the touchscreen sensor.

The controller TX/RX multiplexer allows for flexible chip placement on the FPC. All pins connected to the touchscreen sensor are programmable as TX or RX.

Features

- Automotive Electronics Council (AEC) AEC-Q100 certified

- Multi-touch capacitive touchscreen controller

- 32-bit Arm® Cortex® CPU

- Configurable registers

- Noise suppression technology for display and EMI

- Efficient 20 V drive for higher signal-to-noise ratio (SNR)[1]

- AutoArmor for improved EMI and immunity

- External display synchronisation

- Waterproof and wet finger tracking with DualSense

- Multi-touch glove with automatic mode switching

- Ten-finger, thin glove (≤ 1 mm thick)

- Two-finger, thick glove (≤ 5 mm thick)

- Nail tracking

- Large object rejection

- Automatic baseline tracking in response to environmental changes

- Field upgrades via guided loading programme

- Manufacturing Test Kit (MTK)

- Touchscreen sensor self-test

- Low-power wake-up button (< 50 µA)

- System performance (depending on configuration)

- Screen sizes up to 15 inches diagonal

- 6.0 mm electrode pitch; 16:10 aspect ratio

- Up to 88 sense pins, 1836 crosspoints; 16:10 aspect ratio (34 TX × 54 RX)

- Reports up to ten fingers

- Supports fingers as small as 5 mm

- Refresh rate up to 250 Hz; other rates configurable

- Transmit frequency up to 350 kHz

For further information, please contact Mr Chen by phone:

Phone: +86 13410018555

Email: sales@hkmjd.com

Company homepage: www.hkmjd.com