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TSC2004

ACTIVE

12-Bit, Nanopower, 4-Wire Touch Screen Controller

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Data sheet

TSC2004

ACTIVE
Data sheet Order now

Product details

SAR ADC resolution (Bits) 12 SAR sample rate (max) (ksps) 100 Touch panel 4-Wire Control interface I2C Vref (int/ext) External Rating Catalog Operating temperature range (°C) -40 to 85 Analog supply (min) (V) 1.2 Analog supply voltage (max) (V) 3.6 I/O supply voltage (min) (V) 1.2 I/O supply voltage (max) (V) 3.6 Input type Single-ended
SAR ADC resolution (Bits) 12 SAR sample rate (max) (ksps) 100 Touch panel 4-Wire Control interface I2C Vref (int/ext) External Rating Catalog Operating temperature range (°C) -40 to 85 Analog supply (min) (V) 1.2 Analog supply voltage (max) (V) 3.6 I/O supply voltage (min) (V) 1.2 I/O supply voltage (max) (V) 3.6 Input type Single-ended
DSBGA (YZK) 24 7.5625 mm² 2.75 x 2.75 WQFN (RTJ) 20 16 mm² 4 x 4
  • 4-Wire Touch Screen Interface
  • Ratiometric Conversion
  • Single 1.2V to 3.6V Supply
  • Preprocessing to Reduce Bus Activity
  • High-Speed I2C-Compatible Interface
  • Internal Detection of Screen Touch
  • Register-Based Programmable:
    • 10-Bit or 12-Bit Resolution
    • Sampling Rates
    • System Timing
  • On-Chip Temperature Measurement
  • Touch Pressure Measurement
  • Auto Power-Down Control
  • Low Power:
    • 760µW at 1.8V, 50SSPS
    • 580µW at 1.6V, 50SSPS
    • 285µW at 1.2V, 50SSPS
    • 74µW at 1.6V, 8.2kSPS Eq. Rate
    • 47µW at 1.2V, 8.2kSPS Eq. Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±12kV Contact Discharge
  • 2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Package
  • APPLICATIONS
    • Cellular Phones
    • Portable Instruments
    • MP3 Players, Pagers
    • Multiscreen Touch Control

U.S. Patent No. 6,246,394; other patents pending.

I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners
  • 4-Wire Touch Screen Interface
  • Ratiometric Conversion
  • Single 1.2V to 3.6V Supply
  • Preprocessing to Reduce Bus Activity
  • High-Speed I2C-Compatible Interface
  • Internal Detection of Screen Touch
  • Register-Based Programmable:
    • 10-Bit or 12-Bit Resolution
    • Sampling Rates
    • System Timing
  • On-Chip Temperature Measurement
  • Touch Pressure Measurement
  • Auto Power-Down Control
  • Low Power:
    • 760µW at 1.8V, 50SSPS
    • 580µW at 1.6V, 50SSPS
    • 285µW at 1.2V, 50SSPS
    • 74µW at 1.6V, 8.2kSPS Eq. Rate
    • 47µW at 1.2V, 8.2kSPS Eq. Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±12kV Contact Discharge
  • 2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Package
  • APPLICATIONS
    • Cellular Phones
    • Portable Instruments
    • MP3 Players, Pagers
    • Multiscreen Touch Control

U.S. Patent No. 6,246,394; other patents pending.

I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners

The TSC2004 is a very low-power touch screen controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultralow-power, 12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and the control logic to measure touch pressure.

In addition to these standard features, the TSC2004 offers preprocessing of the touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources that can then be redirected to more critical functions.

The TSC2004 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 10 or 12 bits to accommodate different screen sizes and performance needs.

The TSC2004 is available in a miniature, 18-lead, 5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm wafer chip-scale package (WCSP), and a 20-pin, 4 x 4 QFN package. Both packages are characterized for the -40°C to +85°C industrial temperature range.

The TSC2004 is a very low-power touch screen controller designed to work with power-sensitive, handheld applications that are based on advanced low-voltage processors. It works with a supply voltage as low as 1.2V, which can be supplied by a single-cell battery. It contains a complete, ultralow-power, 12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and the control logic to measure touch pressure.

In addition to these standard features, the TSC2004 offers preprocessing of the touch screen measurements to reduce bus loading, thus reducing the consumption of host processor resources that can then be redirected to more critical functions.

The TSC2004 supports an I2C serial bus and data transmission protocol in all three defined modes: standard, fast, and high-speed. It offers programmable resolution of 10 or 12 bits to accommodate different screen sizes and performance needs.

The TSC2004 is available in a miniature, 18-lead, 5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm wafer chip-scale package (WCSP), and a 20-pin, 4 x 4 QFN package. Both packages are characterized for the -40°C to +85°C industrial temperature range.
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Technical documentation

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Type Title Date
* Data sheet 1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Touch Scrn Cntrlr w/I²C™ Int datasheet (Rev. E) 21 Mar 2008
Application note PCB Layout Guideline for TI Resistive TSC Devices 04 Oct 2012
Application note POR and Resets in TSC2004/5/6 16 Oct 2011
Application note TSC2004 Linux® Driver 29 Mar 2009
Application note TSC2004 WinCE® 6.0 Driver 29 Mar 2009
Application note Important Considerations to Assure a Safe POR 10 Mar 2009
Analog Design Journal Using a touch-screen controller’s auxiliary inputs 12 Oct 2007
Application note On TSC2004 Power Consumption 08 Oct 2007
Application note Reducing Analog Input Noise in Touch Screen Systems (Rev. A) 15 Sep 2007
Analog Design Journal Calibration in touch-screen systems 10 Aug 2007
Application note Set Up and Use TSC Timings 07 Jun 2007
Application note Operation Schemes of Touch Screen Controllers 21 May 2007
EVM User's guide TSC2004EVM and TSC2004EVM-PDK 30 Mar 2007
Application note Apply TI TSC for Various and Multiple Functions 11 Dec 2006

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