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Semtech SX8652

Semtech SX8652

15kV ESD Low Power 4-Wire / 5-Wire Resistive Touchscreen Controller with SPI Interface

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The SX8652 is a very low power, high reliability controller for 4-wire and 5-wire resistive touch screens used in PDAs, portable instruments and point-of-sales terminal applications. It features a wide input supply range from 1.65V to 3.7V and low power modes to preserve current when the screen is unintentionally touched.

Features


  • Extremely Low Power Consumption: 23uA@1.8V 8kSPS
  • Superior On-chip ESD Protection
    • ±15kV HBM (X+,X-,Y+,Y-)
    • ±2kV CDM
    • ±25kV Air Gap Discharge
    • ±15kV Contact Discharge
    • ±300V MM
  • Single 1.65V to 3.7V Supply/Reference
  • 4-Wire or 5-Wire Resistive Touch Screen Interface
  • Integrated Preprocessing Block to Reduce Host Loading and Bus Activity
  • Four User Programmable Operation Modes provides Flexibility to address Different Application Needs Manual, Automatic, Pen Detect, Pen Trigger
  • Low Noise Ratiometric Conversion
  • Precision, High Speed 12-bit SAR ADC Operating At 74k SPS
  • Throughput: 5000 (X-Y) coordinates/second (c/s) with 7-Sample Averaging
  • Low Power Shut-Down Mode < 1uA
  • SPI™ Serial Interface
  • Touch Pressure Measurement (4-Wire)
  • Auxiliary Input (4-Wire) For Alternate ADC Input or Start of Conversion Trigger
  • Hardware & Software reset
  • -40°C to +85°C operation
  • Pb-Free, Halogen Free, RoHS/WEEE compliant product
  • Windows CE 6.0, Linux Driver Support Available

Applications


  • DSC, DVR, Cell Phones
  • PDA, Pagers
  • Point-of-Sales Terminals
  • Touch-Screen Monitors

Packaging

  • 12 - Ball WLCSP (1.5 mm x 2.0 mm)
  • 14 - Lead DFN (4.0mm x 3.0mm)

Order Codes

  • SX8652EVK: Evaluation Kit
  • SX8652ICSTRT 3000 pcs, Tape and Reel
  • SX8652IWLTRT 3000 pcs, Tape and Reel
 
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