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Active Stylus

Overview

This advanced tablet active stylus system is designed to replicate the feel and functionality of a real pencil. It offers pressure sensitivity for natural writing and drawing, acceleration detection for usage tracking and power efficiency, and wireless charging for added convenience.

System Benefits:

  • Small enough to be integrated into a cell phone.
  • Extremely low power consumption for prolonged usage.
  • Wireless charging and optional pressure detection enhance usability.

Block Diagram

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4:3 ratioSheet.1Sheet.2Sheet.3Sheet.4WS022WS022WS022HapticHapticHapticFlashFlashFlashASICASICASICPressure SensorPressure SensorPressure SensorConnector LineConnector Line.28Connector Line.29Connector Line.30Transformer Inductor Coreless (Air conductor)Sheet.32Sheet.33Sheet.34Sheet.35Sheet.36Sheet.37Sheet.38Sheet.39Sheet.40Connector Line.41Transformer Inductor Coreless (Air conductor).43Sheet.44Sheet.45Sheet.46Sheet.47Sheet.48Sheet.49Sheet.50Sheet.51Sheet.52Connector Line.53Charging PadCharging PadCharging PadConnector ArrowBi-directionalBi-directional.57Bi-directional.58Connector Arrow.60Connected signals arrowConnector Arrow.62Connector Arrow.63Bi-directional.64Connector Arrow.65Board - Optional.66Connector Arrow.68Battery.27Sheet.70Sheet.71Sheet.72Connector Arrow.73Connected signals line3.7V3.7V3.7VNFC 1W ChargerNFC 1W ChargerNFC 1W ChargerLoad SwitchLoad SwitchLoad SwitchButtonButtonButtonG SensorG SensorG SensorHall SensorHall SensorHall SensorUniversal NFC Wireless ChargerUniversal NFC Wireless ChargerUniversal NFC Wireless ChargerGreenPAKGreenPAKGreenPAKSheet.76Bluetooth Low EnergyBluetooth Low EnergyBluetooth Low EnergyI2CI2CI2CGPIOGPIOGPIOSPISPISPII2CI2CI2CI2CI2CI2CGPIOGPIOGPIO

Universal NFC Wireless Charger

This system uses Renesas' NFC technology for seamless device compatibility, offering hassle-free, reliable power delivery for wearables, medical sensors, and IoT devices.
View Diagram

NFC 1W Charger

NFC

Load Switch

Load Switches

Bluetooth Low Energy

Bluetooth Low Energy

Haptic

Haptic Drivers

Flash

SPI NOR Flash

GreenPAK

AnalogPAK

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