TSC2006IRTJTG4

具有 SPI 串行接口的毫微功率触摸屏控制器 20-QFN -40 to 85

DESCRIPON

The TSC2006 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 TSC2006 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.

FEATURES

• 4-Wire Touch Screen Interface

• Ratiometric Conversion

• Single 1.2V to 3.6V Supply

• Preprocessing to Reduce Bus Activity

• High-Speed SPI-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:

   – 707µW at 1.8V, 50SSPS

   – 544µW at 1.6V, 50SSPS

   – 280µW at 1.2V, 50SSPS

   – 69µW at 1.6V, 8.2kSPS Eq. Rate

   – 43µW 1.2V, 8.2kSPS Eq. Rate

• Enhanced ESD Protection:

   – ±8kV HBM

   – ±1kV CDM

   – ±25kV Air Gap Discharge

   – ±12kV Contact Discharge

• 4 × 4 QFN-20 and 0.4mm 4 × 4 XTQFN-201 Packages

APPLICATIONS

• Personal Digital Assistants

• Cellular Phones

• Portable Instruments

• Point-of-Sale Terminals

• MP3 Players, Pagers

• Multiscreen Touch Control Systems