Semtech SX8678
Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
The SX8677 and SX8678 belong to a family of high performance haptics enabled multitouch 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-of-sales 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 (SX8677)
- 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 (SX8677/78)
- 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
- Pb & Halogen Free, RoHS/WEEE compliant
Applications
- Game Machines, Portable Music Players
- Mobile Phones
- DSC, DVR, Phones
- POS/POI Terminals
- Touch-Screen Monitors
Packaging
- SX8677IWLTRT QFN-20
- SX8677ICSTRT WLCSP-19
- SX8678IWLTRT QFN-20
- SX8678ICSTRT WLCSP-19
Order Codes
SX8677IWLTRT - Pb & Halogen Free, RoHS/WEEE compliant SX8677ICSTRT - Pb & Halogen Free, RoHS/WEEE compliant SX8678IWLTRT - Pb & Halogen Free, RoHS/WEEE compliant SX8678ICSTRT - Pb & Halogen Free, RoHS/WEEE compliant SX8674EVK Evaluation Kit
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their products and speed up time-to-market.
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may be requested.
Purchase
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Order Evaluation Boards
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To order, use our Evaluation Board Request Form here. One (1) free evaluation board may be requested per order form.
Eval boards are readily available for most of our new and popular products. If you wish to request boards for other parts, simply type the part number in the “Select Part Number” field space of the order form. These will be subject to availability.
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