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AP3890 - Enhanced Multi-touch Capacitive Touch Screen Controller

Features

  • (Continued) The AP389X is a low-cost high-resolution single chip solution for APA capacitive touch screen. It is an 8-bit single cycle 8051 microcontroller with I2C Interface. The chip includes 8-bit successive approximation analog-to-digital converters with an I2C interface and multiplexer-switcher circuits for flexible measurement of analog signal from APA panel. An accurate switched-capacitor integrator is built-in and it can auto calibrate the pixel parameters for a wide range of capacitanc.

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Datasheet Details

Part number AP3890
Manufacturer BCD
File Size 388.84 KB
Description Enhanced Multi-touch Capacitive Touch Screen Controller
Datasheet download datasheet AP3890 Datasheet

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Full PDF Text Transcription

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Data Sheet Enhanced Multi-touch Capacitive Touch Screen Controller AP389X General Description Features (Continued) The AP389X is a low-cost high-resolution single chip solution for APA capacitive touch screen. It is an 8-bit single cycle 8051 microcontroller with I2C Interface. The chip includes 8-bit successive approximation analog-to-digital converters with an I2C interface and multiplexer-switcher circuits for flexible measurement of analog signal from APA panel. An accurate switched-capacitor integrator is built-in and it can auto calibrate the pixel parameters for a wide range of capacitance on the touch screen (0.1pF to 4pF). On-chip capacitor can replace external component.
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