th July 2011 3 www.semtech.com SX8654/SX8655/SX8656 Ha" />
參數(shù)資料
型號: SX8654IWLTRT
廠商: Semtech
文件頁數(shù): 23/62頁
文件大?。?/td> 0K
描述: IC TOUCH SCREEN 12BIT 20QFN
標(biāo)準(zhǔn)包裝: 1
類型: 電阻式,觸感驅(qū)動器
觸摸面板接口: 4,5 線
輸入數(shù)/鍵: 1 TSC,雨刷,鑰匙
分辨率(位): 12 b
評估套件: *
數(shù)據(jù)接口: I²C,串行
電壓基準(zhǔn): 內(nèi)部
電源電壓: 2.3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 20-QFN(4x4)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: SX8654IWLDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
3
www.semtech.com
SX8654/SX8655/SX8656
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
5.3.5
PROXDIFF Update
32
5.3.6
PROXSTAT Update
32
5.4
Host Operation
33
5.4.1
General Description
33
5.4.2
Proximity Sensing vs Touch Operations
33
5.4.3
Minimum Scan Period (i.e. PROXSCANPERIOD)
35
6
HAPTICS INTERFACE (SX8654/55) .......................................................................................... 36
6.1
Introduction
36
6.2
ERM Load
36
6.2.1
Introduction
36
6.2.2
PWM Mode
37
6.2.3
I2C Mode
37
6.3
LRA Load
37
6.3.1
Introduction
37
6.3.2
PWM Mode
38
6.3.3
I2C Mode
38
6.4
Short-Circuit Protection
38
7
TEMPERATURE SENSOR.......................................................................................................... 39
8
INTERRUPT (NIRQ) .................................................................................................................. 40
8.1
Introduction
40
8.2
Registers Overview
40
8.2.1
RegIrqMsk
40
8.2.2
RegIrqSrc
40
8.2.3
RegStat
40
8.3
Host Procedure
40
9
AUXILIARY PINS (AUX1/AUX2/AUX3)...................................................................................... 41
10
RESET...................................................................................................................................... 42
10.1
Hardware (POR and NRST)
42
10.2
Software (RegReset)
42
10.3
ESD Event (RESETSTAT)
42
11
I2C INTERFACE........................................................................................................................ 43
11.1
Introduction
43
11.2
I2C Address
43
11.3
Write Register
43
11.4
Read Register
44
11.5
Write Command (Touchscreen Interface)
44
11.6
Read Channel (Touchscreen Interface)
45
12
REGISTERS DETAILED DESCRIPTION ...................................................................................... 47
13
APPLICATION INFORMATION ................................................................................................... 59
13.1
Typical Application Circuit
59
13.2
External Components Recommended Values
59
14
PACKAGING INFORMATION ..................................................................................................... 60
14.1
QFN Package
60
14.2
CSP Package
61
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