TSC2014中文资料具有 I2C 接口的 1.2V 至 3.6V、12 位、4 线触摸屏控制器数据手册TI规格书

描述 Description

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.

特性 Features

• 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.

简介

TSC2014属于开发板套件编程器的评估演示板及套件。由TI制造生产的TSC2014评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。