參數(shù)資料
型號： SX8652IWLTRT
廠商： Semtech
文件頁數(shù)： 12/29頁
文件大?。?/td> 0K
描述： IC TOUCH SCREEN CTRLR 14DFN
標(biāo)準(zhǔn)包裝： 1
類型： 電阻
觸摸面板接口： 4 線，5 線
輸入數(shù)/鍵： 2 鍵
分辨率（位）： 12 b
數(shù)據(jù)接口： 串行，SPI?
數(shù)據(jù)速率/采樣率 (SPS，BPS)： 74k
電壓基準(zhǔn)： 內(nèi)部
電源電壓： 1.65 V ~ 3.7 V
電流 - 電源： 10mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 14-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 14-DFN
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： SX8652IWLDKR
Revision V1.7/October 2010
2010 Semtech Corp.
SX8652
www.semtech.com
Page 2
Section
Page
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
Table of contents
1.
General Description ................................................................................................................................................. 4
1.1.
DFN Pinout Diagram and Marking Information (Top View).............................................................................. 4
1.2.
WLCSP Pinout Diagram and Marking Information (Top View) ........................................................................ 4
1.3.
Pin Description................................................................................................................................................. 5
1.4.
Simplified Block Diagram ................................................................................................................................. 5
2.
Electrical Characteristics ......................................................................................................................................... 6
2.1.
Absolute Maximum Ratings ............................................................................................................................. 6
2.2.
Recommended Operating Conditions.............................................................................................................. 6
2.3.
Thermal Characteristics ................................................................................................................................... 6
2.4.
Electrical Specifications ................................................................................................................................... 7
2.5.
Host Interface Specifications ........................................................................................................................... 9
2.6.
Host Interface Timing Waveforms.................................................................................................................... 9
3.
Functional Description ........................................................................................................................................... 10
3.1.
General Introduction ..................................................................................................................................... 10
3.2.
Device Interface and ESD protection ............................................................................................................. 11
3.2.1.
Touchscreen interface............................................................................................................................. 11
3.2.2.
Host Interface and Control Pins .............................................................................................................. 11
4.
4-wire Touch Screen Detailed Description ............................................................................................................ 12
4.1.
Touch Screen Operation ................................................................................................................................ 12
4.2.
Coordinates Measurement............................................................................................................................. 12
4.3.
Pressure Measurement.................................................................................................................................. 13
4.4.
Pen Detection ................................................................................................................................................ 13
5.
5-wire Touch Screen Detailed Description ............................................................................................................ 14
5.1.
Touch Screen Operation ................................................................................................................................ 14
5.2.
Coordinates Measurement............................................................................................................................. 14
5.3.
Pen Detection ................................................................................................................................................ 14
6.
Data Processing .................................................................................................................................................... 15
7.
Power-Up, Reset ................................................................................................................................................... 15
8.
Modes of Operation ............................................................................................................................................... 15
8.1.
MANual Mode ................................................................................................................................................ 16
8.2.
AUTOmatic mode .......................................................................................................................................... 16
8.3.
PENDET Mode .............................................................................................................................................. 17
8.4.
PENTRIG Mode ............................................................................................................................................. 17
9.
Host Interface ........................................................................................................................................................ 19
9.1.
SPI Read/Write Registers .............................................................................................................................. 19
9.2.
SPI Reading Channel Data............................................................................................................................ 19
9.3.
SPI Host Commands ..................................................................................................................................... 20
9.4.
SPI implementation and multiple Read/Write ................................................................................................ 20
9.5.
Invalid Qualified Data ..................................................................................................................................... 21
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