PSOC™ Automotive Multitouch Gen7XL

Overview

Infineon designed the new PSOC™ Automotive & Transportation Multitouch Gen7XL touchscreen controller family specifically to meet rigorous automotive quality standards while enabling innovative driver and passenger usage models. The family offers class-leading Hover and Force Touch features while meeting stringent automotive ElectroMagnetic Interference (EMI) and ElectroMagnetic Compatibility (EMC) requirements.

For infotainment systems, the CTAT817X can replace mechanical on/off buttons with a capacitive touchscreen, enabling sleek, modern interior designs. The controllers perform acoustic and haptic feedback processing on-chip for faster response times compared to distributed implementations where the chip is connected to a head-unit via a Controller Area Network (CAN) or Low-Voltage Differential Signaling (LVDS) backchannel.

Features

key features

  • Multi-touch capacitive touchscreen controller
  • 32-Bit ARM Cortex CPU
  • Register configurable
  • Noise suppression technologies for display and RF noise
  • 35 mm hover
  • Force Touch with 120 Hz refresh rates
  • Haptic and acoustic feedback
  • Low-power CapSense button for Power On/Off
  • Wake-on-screen with typical power consumption of 150uA
  • Slider support
  • Water rejection and wet-finger tracking
  • Large object rejection
  • Low-power look-for-touch mode
  • Field upgrades via bootloader
  • Android™ driver support
  • Cypress manufacturing test kit (MTK)
  • Touchscreen sensor self-test
  • Runtime Diagnostics
  • Split screen support
  • Support for free form shapes

  • Screen sizes up to 15-inch diagonal
    • 3-mm sensor pitch, 16:9 aspect ratio
  • Up to 103 sense pins
    • 2500 intersections
    • (50 TX × 50 RX)
  • Reports up to 10 fingers
  • Small finger support down to 4 mm
  • Reports gloved fingers
    • Up to 10 thin (≤1 mm) gloved fingers
    • Up to 2 thick (≤5 mm) gloved fingers
  • Refresh rates of 120 Hz; other rates configurable

  • 71- to 1.95-V and 3- to 5.5-V digital and I/O supply
  • 3V- to 5.5-V analog supply
  • 30-mW average power
  • 30-μW typical deep-sleep power

  • Supports a variety of touchscreen sensors, stack-ups, and materials
    • Manhattan and Diamond, patterns
    • Sensor-on-lens (SOL)
    • On-cell touch integrated display modules
    • Hybrid In-Cell
    • SLIM
    • Plastic (PET) and glass sensor substrates
    • LCD, AMOLED, and IPS displays
    • ITO and metal mesh I2C and SPI interface options

  • I2C slave
    • 100 kbps and 400 kbps
  • SPI slave bit rates up to 8 Mbps
  • Additional SCB and CAN block for parallel data reporting
    • Two SCB block
    • CAN block

  • 100 pin 14x14x1.4TQFP (0.5 mm pitch
  • 128 pin 14x20x1.4TQFP (0.5-mm pitch)

  • A-Grade: –40 °C to +85 °C
  • S-Grade: –40 °C to +105 °C
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