Resistive Touch Controllers
  • SX8674
  • Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
  • SX8675
  • Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
  • SX8676
  • Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
  • SX8677
  • Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
  • SX8678
  • Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
Semtech SX8657

Semtech SX8657

Haptics Enabled 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing

The SX8657 and SX8658 belong to a family of high performance haptics enabled 4/5-wire resistive touch screen controller with proximity detection optimized for hand held applications such as mobile phones, portable music players, game machines, point-ofsales terminal and other consumer and industrial applications. They feature a wide input supply range from 2.3V to 3.6V.

Features


  • Low Voltage Operation
    • 2.3V to 3.6V Supply
    • Integrated Low Drop Out (LDO) Regulator
  • Low Power Consumption
    • 30uA@2.3V 8ksps (ESR)
    • 0.4uA Shut-Down Current
  • 4/5-Wire Touchscreen Interface
    • Precision, Ratiometric 12-bit ADC
    • Up to 5000 (X-Y) coordinates/second (c/s)
    • Programmable Digital Filtering/Averaging
    • Touch Pressure Measurement (4-Wire)
    • Programmable Operating Mode (Manual, Pen Detect, Pen Trigger)
  • Capacitive Proximity Sensing (SX8657)
    • No Additional Components Required
    • Uses Resistive Touchscreen or a Simple Conductive Area as the Sensor
    • >5 cm Detection Distance
    • 8uA @ 200ms Scan Period
    • Fully Programmable (Sensitivity, etc)
  • Haptics Driver for LRA and ERM (SX8657/58)
    • Supports Immersion TouchSense® 3000 haptic control software
    • Haptics Waveform Generation Control (I2C or PWM Input)
    • Short Circuit Protection
    • Early Warning and Over-Temperature Monitoring and Protection
  • 400kHz I2C Serial Interface
  • Several Host Operating Modes Available
    • Maskable Interrupt Output (NIRQ)
    • Real-time Events Monitoring (AUX1-3)
    • Polling (I2C)
  • Hardware, Software, and Power-On Reset
  • -40°C to +85°C Operating Temperature Range
  • 15kV HBM & IEC ESD Protection
  • Small Footprint Packages
  • AEC-Q100 Qualified Part
  • Pb & Halogen Free, RoHS/WEEE compliant

Applications


  • Game Machines, Portable Music Players
  • Mobile Phones
  • DSC, DVR, Phones
  • POS/POI Terminals
  • Touch-Screen Monitors

Packaging

  • QFN-20

Order Codes

  • SX8657IWLTR - Pb & Halogen Free, RoHS/WEEE compliant