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SX8657 Datasheet(PDF) 6 Page - Semtech Corporation |
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SX8657 Datasheet(HTML) 6 Page - Semtech Corporation |
6 / 61 page ADVANCED COMMUNICATIONS & SENSING Rev 1 – 25 th July 2011 6 www.semtech.com SX8657/SX8658 Haptics Enabled 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing 1.3 Pin Description Name Type Description VDD P Main Power Supply GND P Main Ground VREG P Internal Regulator Output (must be connected to an external capacitor; see §13) MVDD P Haptics Motor Power Supply MGND P Haptics Motor Ground (must be electrically connected to GND) MOUTP AO Haptics Motor Positive Drive MOUTN AO Haptics Motor Negative Drive MIN DI Haptics Motor PWM/Clock Input X+/BR A • 4-wire Touchscreen : X+ Electrode • 5-wire Touchscreen : Bottom Right (BR) Electrode Y+/TR A • 4-wire Touchscreen : Y+ Electrode • 5-wire Touchscreen : Top Right (TR) Electrode X-/TL A • 4-wire Touchscreen : X- Electrode • 5-wire Touchscreen : Top Left (TL) Electrode Y-/BL A • 4-wire Touchscreen : Y- Electrode • 5-wire Touchscreen : Bottom Left (BL) Electrode AUX1/WIPER D/A • 4-wire Touchscreen : First Programmable Auxiliary Function (see §9) • 5-wire Touchscreen : WIPER Electrode AUX2 D/A Second Programmable Auxiliary Function (see §9) AUX3 D/A Third Programmable Auxiliary Function (see §9) ADDR DI I2C Address Selection (QFN only, internally connected to GND on CSP) SCL DI I2C Clock Input SDA DIO I2C Data Input/Output NIRQ DO Interrupt Output (active low) NRST DI Reset Input (active low) A/D/I/O/P: Analog/Digital/Power/Input/Output Table 1 – Pin Description 1.4 Block Diagram Figure 5 – SX8657 Block Diagram |
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