LDS6000 08-09/MG/BWD/PDF FLYR-LDS6000-089

® ® LDS6000 PureTouchTM Capacitance Touch IC The LDS6000 PureTouchTM controller empowers system designers to create

semiconductor solutions ® ® LDS6000 LDS6000 PureTouchTM Capacitance Touch IC The LDS6000 LDS6000 PureTouchTM controller empowers system designers to create streamlined, attractive, and reliable product designs, enabling the replacement of mechanical controls with capacitive touch buttons, sliders, and scroll wheels. LDS6000 LDS6000 Features Versatile, accurate capacitanceto-digital converter (CDC) · 500 kHz sigma-delta CDC · 15 capacitance sensor input channels · 2 ms update rate per active sensor Integrated, automatic calibration algorithms · Environmental compensation · On-chip RAM to store calibration data Integrated touch preference modes · Strongest single touch Description The LDS6000 LDS6000 is a programmable capacitance-to-digital converter (CDC) designed for use with capacitive sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons. Featuring 15 sensor inputs, the LDS6000 LDS6000 provides the flexibility to implement multiple touch inputs using a single controller. The capacitive sensor inputs are directed through an integrated switch matrix to a 500 kHz sigma-delta CDC which senses changes in the external sensor array. When a sufficiently large change in capacitance occurs, a sensor activation is registered and the host processor is notified. On-chip calibration logic continuously monitors the environment and automatically adjusts on-and-off threshold levels to prevent false sensor activation. The LDS6000 LDS6000 is offered with both SPI-compatible and 2 I C-compatible interfaces (active interface selected by I/F select pin) and features a general-purpose input/ output (GPIO) and interrupt output for additional communication with the host processor. · Strongest two touches Æ · Unrestricted (all) touches LDS6000 LDS6000 · Shutdown mode (typical):