Infineon CYAT61652-64AS48

A capacitive slider detects changes in capacitance to determine the location of one or more fingers on the surface of the slider. A typical slider system consists of a capacitive slider sensor, an FPC bonded to the sensor, and the slider controller mounted on the FPC. The FPC connects the slider controller to the host processor. Users can interact with the user interface through finger movements and gestures on the surface of the slider. CYAT6165X is a capacitive slider controller with the sensing and processing technology to resolve the locations and report the positions of up to ten fingers on the slider. The slider controller converts an array of sensor capacitances into an array of digital values, which are processed by touch-detection and position-resolution algorithms in the controller. These algorithms determine the location and signal magnitude of each finger on the slider. This device contains a high-performance Arm 32-bit CPU with an integrated hardware multiply unit. This CPU controls all sensing and processing of measured capacitance results to allow tracking and reporting touches. The controller is optimized for low power and fast response time, with built-in support for manufacturing test. The slider controller communicates with a host through an I²C slave interface at up to 400 kbps or an SPI interface at up to 8 Mbps. CYAT6165X collects the slider sensor information using the touch subsystem. This touch subsystem consists of a 5-V TX pump, TX drivers, RX channels, and a programmable transmit/receive (TX/RX) multiplexer. The multiplexer electrically connects the analog front end of each RX channel and TX driver to the appropriate row and column electrodes of the slider sensor.

• Automotive Electronics Council (AEC) AEC-Q100 qualified
• Multitouch capacitive slider controller
• 32-bit Arm Cortex CPU
• Register-configurable
• Noise-suppression technologies for EMI
• Effective 20-V drive for higher signal-to-noise ratio (SNR)
• AutoArmor improves both electromagnetic emissions and immunity
• Water rejection and wet-finger tracking using DualSense
• Multitouch glove with automatic mode switching
• Ten fingers with thin glove (≤ 1-mm thick)
• Two fingers with thick glove (≤ 5-mm thick)
• Up to 3 TX configuration supported
• Large object rejection
• Supports 1 TX single layer configuration
• Automatic baseline tracking to environmental changes
• Low-power look-for-touch mode
• Field upgrades via bootloader
• Infineon Manufacturing Test Kit (MTK)
• Slider sensor self-test
• Low power CAPSENSE wake-up button with power consumption of 50 μA
• Up to 48 sense pins, 135 intersections (45 RX and 3TX)
• Swipe speed of up to 1000 mm/sec
• Reports up to ten fingers
• Small finger support down to 4 mm
• Support up to 10 capacitive sensing buttons
• Refresh rate up to 250 Hz; other rates configurable
• TX frequency up to 350 kHz
• 1.71-V to 1.95-V and 3.0-V to 5.5-V logic and digital I/Os supply
• 3.0-V to 5.5-V analog supply
• 9-mW average power
• 11-μW typical deep-sleep power
• Supports a variety of slider sensors and stackups
  • Manhattan, diamond
  • Plastic (PET) and glass-sensor substrates
  • Metal mesh
• Communication interface
  • I²C slave at 100 and 400 kbps
  • SPI slave bit rates up to 8 Mbps
• Package
  • 56-pin QFN wettable flank, 8×8×1 mm, 0.5-mm pin-pitch
  • 64-pin TQFP 10×10×1.4 mm, 0.5-mm pin-pitch
• Ambient temperature range
  • Automotive-A: -40°C to 85°C
  • Automotive-S: -40°C to 105°C