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SX8650ICSTRT1 Datasheet(PDF) 1 Page - Semtech Corporation |
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SX8650ICSTRT1 Datasheet(HTML) 1 Page - Semtech Corporation |
1 / 39 page SX8650 www.semtech.com Page 1 World’s Lowest Power & Smallest Footprint 4-wire Resistive Touchscreen Controller with 15kV ESD ADVANCED COMMUNICATIONS & SENSING DATASHEET Revision V2.19/October 2010 ©2010 Semtech Corp. 4 The SX8650 is an ultra low power 4-wire resistive touchscreen controller optimized for portable equipment where power and board-space are at a premium. It incorporates a highly accurate 12-bit ADC for data conversion and operates from a single 1.65 to 3.7V supply voltage. The SX8650 features a built-in preprocessing algorithm for data measurements, which greatly reduces the host processing overhead and bus activity. This complete touchscreen solution includes four user-selectable operation modes which offer programmability on different configurations such as conversion rate and settling time, thus enable optimization in throughput and power consumption for a wide range of touch sensing applications. The touch screen inputs have been specially designed to provide robust on-chip ESD protection of up to ±15kV in both HBM and Contact Discharge, and eliminates the need for external protection devices. The SX8650 supports the Fast-mode I²C (400kbit/s) serial bus data protocol and includes 2 user-selectable slave addresses. A custom I2C address is possible on request. The SX8650 is offered in two tiny packages: 3.0 mm x 3.0 mm DFN and a 1.5 mm x 2.0 mm wafer-level chip-scale package (WLCSP). Portable Equipment Mobile Communication Devices Cell phone, PDA, MP3, GPS, DSC Touch Screen Monitors 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 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 High Precision 12-bit Resolution Low Noise Ratiometric Conversion Selectable Polling or Interrupt Modes Touch Pressure Measurement 400kHz Fast-Mode I²C Interface Hardware Reset & I²C Software Reset -40°C to 85°C Operation 12-LD (3.0 mm x 3.0 mm) DFN Package 12-Ball (1.5 mm x 2.0 mm) WLCSP Package Pin-compatible with SX8651 Pb-Free, Halogen Free, RoHS/WEEE compliant product Windows CE 6.0, Linux Driver Support Available GENERAL DESCRIPTION APPLICATIONS Block Diagram KEY PRODUCT FEATURES ORDERING INFORMATION Part Number Package SX8650ICSTRT1 1. 3000 Units / reel 12 - Ball WLCSP (1.5 mm x 2.0 mm) SX8650IWLTRT1 12 - Lead DFN (3.0 mm x 3.0 mm) Touch Screen Interface SX8650 VDD AUX X+ Y+ X- Y- A0 NIRQ NRST SCL SDA GND HOST Control I2C Digital Filter ref+ ref- ADC in out OSC POR Vref |
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