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TSC2014

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1.2V to 3.6V,12-Bit, 4-Wire Touch Screen Controller with I2C

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Data sheet

TSC2014

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) 0 I/O supply voltage (max) (V) 3.6 Input type Differential, 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) 0 I/O supply voltage (max) (V) 3.6 Input type Differential, Single-ended
DSBGA (YZG) 12 3.9375 mm² 2.25 x 1.75
  • 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:
    • 430µW at 1.8V, 50SSPS
    • 320µW at 1.6V, 50SSPS
    • 190µW at 1.2V, 50SSPS
    • 58µW at 1.6V, 8.2kSPS Eq. Rate
    • 37µW at 1.2V, 8.2kSPS Eq. Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±11kV Contact Discharge
  • 1.5 × 2.0 WCSP-12 Package U.S. Patent No. 6,246,394; other patents pending.
  • 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:
    • 430µW at 1.8V, 50SSPS
    • 320µW at 1.6V, 50SSPS
    • 190µW at 1.2V, 50SSPS
    • 58µW at 1.6V, 8.2kSPS Eq. Rate
    • 37µW at 1.2V, 8.2kSPS Eq. Rate
  • Enhanced ESD Protection:
    • ±8kV HBM
    • ±1kV CDM
    • ±25kV Air Gap Discharge
    • ±11kV Contact Discharge
  • 1.5 × 2.0 WCSP-12 Package U.S. Patent No. 6,246,394; other patents pending.

The TSC2014 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 TSC2014 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 TSC2014 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 TSC2014 is available in a miniature, 12-lead,
3 × 4 array, (1.555 ±0.055)mm × (2.055 ±0.055)mm wafer chip-scale package (WCSP) package. The device is characterized for the –40°C to +85°C industrial temperature range.

The TSC2014 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 TSC2014 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 TSC2014 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 TSC2014 is available in a miniature, 12-lead,
3 × 4 array, (1.555 ±0.055)mm × (2.055 ±0.055)mm wafer chip-scale package (WCSP) package. The device is 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 TSC2014 1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire Touch Screen Controller with I2C Interface datasheet (Rev. B) PDF | HTML 07 Dec 2016
Application note PCB Layout Guideline for TI Resistive TSC Devices 04 Oct 2012
EVM User's guide TSC2014EVM, TSC2014EVM-PDK User Guide 18 Dec 2010
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 Operation Schemes of Touch Screen Controllers 21 May 2007

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Simulation model

TSC2014 IBIS Model (Rev. B)

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