Capacitive touch platform supports high resolution sensing

Capacitive touch platform supports high resolution sensing

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By eeNews Europe

This enables the host to go into sleep mode during system standby and minimizes the overall power consumption. The analog sensor front end in this platform is equipped with a high-resolution ADC, which can detect down to 4fF of capacitance and is optimized for robust touch and proximity detection. These controllers also feature an advanced 256-step LED driver for various blinking and breathing control providing enhanced visual feedback in TV applications. Each device is designed with a unique innovative circuitry which combines the capacitive sensor with the LED driver to reduce the overall solution footprint. The core design in the new SX95xx platform addresses this concern by providing high-resolution sensing with robust noise immunity. The SX9510/11/12/13 are in an 8-channel configuration which are offered as space saving 4x4mm 20-QFN and 4.4×7.8mm 24-TSSOP packages; and the SX9500/01 provide 4-channels in a 3x3mm 20-QFN package. Semtech guarantees all of these devices to operate over the extended -40 to +85°C temperature range.

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