KT9025 is Touch Controller with an enhanced analog front end (AFE) and digital front end (DFE) circuit including a HV charge driver on multi-touch capacitive panels. It has a maximum resolution of 64 senses (CS) and 45 drives (CD). High sensitivity of sensing channels allows to sense small diamond size and thus it is suitable for touch detection on panels.
Data acquisition (DAQ) consists into a charge sense amplifier (CSA) followed by AD converter (ADC). CD is unipolar and includes several line excitation sequences that can be programmed to improve noise rejection. The minimum conversion period is 16µs.
Touch controller + AFE & DEF with Hi-V Drive for Touch Input
Support CD x 45 Channel, CS x 64 channel
CD timing controller
Embedded XTAL for USB device controller
Internal oscillator (max. ~394MHz)
Support Windows Home-Key touch detection
Built-in with SPI flash for firmware
Package type : BGA156