TSC2000

ACTIVE

4-wire Programmable Touch Screen Controller With 8/10/12-Bit 125-Khz ADC and SPI Interface

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Product details

Parameters

SAR ADC resolution (Bits) 12 Touch panel 4-Wire Control interface SPI Vref (int/ext) Int Rating Catalog Operating temperature range (C) -40 to 85 Input type Single-Ended open-in-new Find other Touch screen controllers

Package | Pins | Size

TSSOP (PW) 20 42 mm² 6.5 x 6.4 open-in-new Find other Touch screen controllers

Features

  • 4-WIRE TOUCH SCREEN INTERFACE
  • RATIOMETRIC CONVERSION
  • SINGLE 2.7V TO 3.6V SUPPLY
  • SERIAL INTERFACE
  • INTERNAL DETECTION OF SCREEN TOUCH
  • PROGRAMMABLE 8-,10-,OR 12-BIT RESOLUTION
  • PROGRAMMABLE SAMPLING RATES
  • DIRECT BATTERY MEASUREMENT (0.5V to 6V)
  • ON-CHIP TEMPERATURE MEASUREMENT
  • TOUCH-PRESSURE MEASUREMENT
  • FULL POWER-DOWN CONTROL
  • TSSOP-20 PACKAGE
  • APPLICATIONS
    • PERSONAL DIGITAL ASSISTANTS
    • CELLULAR PHONES
    • MP3 PLAYERS

SPI is a registered trademark of Motorola.
US Patent No. 624639.

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Description

The TSC2000 is a complete PDA analog interface circuit. It contains a complete 12-bit, Analog-to-Digital (A/D) resistive touch screen converter including drivers, the control to measure touch pressure, and an 8-bit Digital-to-Analog (D/A) converter output for LCD contrast control. The TSC2000 interfaces to the host controller through a standard SPI™ serial interface. The TSC2000 offers programmable resolution and sampling rates from 8- to 12-bits and up to 125kHz to accommodate different screen sizes.

The TSC2000 also offers two battery-measurement inputs, one of which is capable of reading battery voltages up to 6V while operating at only 2.7V. It also has an on-chip temperature sensor capable of reading 0.3°C resolution. The TSC2000 is available in a TSSOP-20 package.

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TSC2005 ACTIVE Nano-Power Touch Screen Controller with SPI Serial Interface Low power touch screen controller with SPI interface (10- or 12-bit resolution)
TSC2008 ACTIVE Nano-Power Touch Screen Controller with SPI Lower power touch screen controller with SPI interface (8- or 12-bit resolution)

Technical documentation

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Type Title Date
* Data sheet TSC2000: PDA Analog Interface Circuit datasheet Jan. 30, 2002
* Errata PDA Analog Interface Circuit Silicon Errata Feb. 12, 2003
Application note Apply TI TSC for Various and Multiple Functions Dec. 11, 2006
Application note Programming Sequences and Tips for TSC2000/2200/230x Applications Mar. 08, 2004
Application note Applying the Current DAC on the TSC2000, TSC2200, TSC2300, and TSC2301 Touch Scr Jun. 13, 2003

Design & development

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
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  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
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TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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TSSOP (PW) 20 View options

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