General Description:

As Telink’s unique Electro-Magnetic (EM) touch controller IC, the TLSC3590 integrates a powerful 32-bit MCU, a 64KB OTP, 16KB SRAM, an antenna controller, up to 5 channels of PWM, a 12-bit ADC, four timers, a SYNC module, abundant I/O interfaces, and nearly all of the peripheral blocks needed.

The TLSC3590 is designed to work with PCB type antenna and ITO type antenna and offers excellent accuracy and linearity. The latter type of sensors can be easily combined with multi-touch capacitive controller to support dual sense touch applications where both finger and pen inputs are possible. Featured with active/passive pen support, the TLSC3590 also has digital modulation signal reception capability for advanced digital pen support.

Key Features:

General features

  • Supports both active and passive pens
  • Supports digital pen with FSK modulation data
  • Supports both PCB and ITO antenna
  • Supports up to 10’’ screen size
  • 64 antenna sense input channels, extensible to up to 120 antenna sense input channels.
  • Flexible interfaces: SWM/SWS, USB, UART, I2C, SPI
  • I/O compatible with high voltage capacitive touch controller chips, allowing sensor dual-sense function.
  • The TLSC3590 is dedicated for EM touch screen, and it can be also used along with capacitive touch screen at the same time.

Advanced features

  • Fast acquisition and accurate tracking
  • Hover and pen tilt support
  • Dynamic scanning cycle configuration
  • Up to 5-channel, independent phase configurable PWM with high driving strength
  • Inter-chip interface for two chips to support screen size over 10’’
  • Unparalleled pen pressure and pen position resolutions through advanced signal processing technology.
  • Flexible working frequency and enhanced immunity to interference from other system components (e.g. capacitive touch frequency, RF EMI).


  • Scanning speed: up to 200Hz
  • Accuracy: +/-0.25mm
  • Reading height: 15mm
  • Resolution: 5080 LPI
  • Pen tilt: 60 degree
  • Pen pressure: 2048 levels
  • Pen diameter: 5mm~13mm
  • Frequency range: 150KHz~500KHz
  • Operating voltage: 1.8V~5.0V
  • Operating temperature: -40℃~+85℃
  • Low power consumption: operating average current less than 10mA; average current in suspend mode is less than 100uA.

Typical Applications:

  • Smart phone
  • Laptop computer
  • Tablet/Pen tablet.


  • TLSC3590ET88: 88-pin 10x10mm QFN package type
  • TLSC3590ET64: 64-pin 8x8mm QFN package type
  • TLSC3590EB101: 101-pin 6x6mm BGA package type.


E2_Product Brief