TSC2004 - 具有 SPI 串行接口的毫微瓦功耗触摸屏控制器

TSC2004是TI德州仪器公司的一款无产品，TSC2004是具有 SPI 串行接口的毫微瓦功耗触摸屏控制器，本站介绍了TSC2004的封装应用图解、特点和优点、功能等，并给出了与TSC2004相关的TI元器件型号供参考。

TSC2004 - 具有 SPI 串行接口的毫微瓦功耗触摸屏控制器 - 无 - 触摸屏控制器 - 德州仪器

产品描述

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.

产品特性

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

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