| 品牌 | tsc2046 | 型号 | tsc2046 |
| 批号 | tsc2046 | 封装 | sop |
| 营销方式 | 现货 | 产品性质 | 热销 |
| 处理信号 | 数模混合信号 | 工艺 | 半导体集成 |
| 导电类型 | 双极型 | 集成程度 | 小规模 |
| 规格尺寸 | 4×4,1mm（mm） | 工作温度 | -40~85（℃） |
| 静态功耗 | 0（mw） |
features
? same pinout as ads7846
? 2.2v to 5.25v operation
? 1.5v to 5.25v digital i/o
? internal 2.5v reference
? direct battery measurement (0v to 6v)
? on-chip temperature measurement
? touch-pressure measurement
? qspitm and spitm 3-wire interface
? auto power-down
? available in tssop-16, qfn-16, and vfbga-48 packages
applications
? personal digital assistants
? portable instruments
? point-of-sale terminals
? pagers
? touch screen monitors
? cellular phones
description
the tsc2046 is a next-generation version to the ads7846 4-wire touch screen controller which supports a low-voltage i/o interface from 1.5v to 5.25v. the tsc2046 is 100% pin compatible with the existing ads7846, and will drop into the same socket. this allows for easy upgrade of current applications to the new version. the tsc2046 also has an on chip 2.5v reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. the reference can also be powered down when not used to conserve power. the internal reference operates down to 2.7v supply voltage, while monitoring the battery voltage from 0v to 6v.
the low-power consumption of < 0.75mw typ at 2.7v (reference off), high-speed (up to 125khz sample rate), and on chip drivers make the tsc2046 an ideal choice for battery operated systems such as personal digital assistants (pdas) with resistive touch screens, pagers, cellular phones, and other portable equipment. the tsc2046 is available in tssop-16, qfn-16, and vfbga-48 packages and is specified over the –40°c to +85°c temperature range.