參數(shù)資料
型號(hào): SX8652IWLTRT
廠(chǎng)商: Semtech
文件頁(yè)數(shù): 25/29頁(yè)
文件大?。?/td> 0K
描述: IC TOUCH SCREEN CTRLR 14DFN
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: 電阻
觸摸面板接口: 4 線(xiàn),5 線(xiàn)
輸入數(shù)/鍵: 2
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(lèi)型: 表面貼裝
封裝/外殼: 14-WFDFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 14-DFN
包裝: 標(biāo)準(zhǔn)包裝
其它名稱(chēng): SX8652IWLDKR
Revision V1.7/October 2010
2010 Semtech Corp.
SX8652
www.semtech.com
Page 5
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
15kV ESD Low Power 4-Wire / 5-Wire Resistive
Touchscreen Controller with SPI Interface
1.3. Pin Description
Table 1. Pin description
1.4. Simplified Block Diagram
The SX8652 simplified block diagram is shown in Figure 3.
Figure 3. Simplified block diagram of the SX8652
Pin Number
#
Name
Type
Description
DFN WLCSP
1
A1
AUX/WIPER Digital Input /
Analog Input
Conversion Synchronization (4-wire) or
Analog Auxiliary Input (4-wire) / Wiper Input (5-wire)
2
A2
VDD
Power Input
Input power supply, connect to a 0.1uF capacitor to GND
3
A3
X+/BR
Analog IO
X+ Right electrode (4-wire) / Bottom Right (5-wire) channel
4
B3
Y+/TR
Analog IO
Y+ Top electrode (4-wire) /Top Right (5-wire) channel
5
C3
X-/TL
Analog IO
X- Left electrode (4-wire) /Top Left (5-wire) channel
6
D3
Y-/BL
Analog IO
Y- Bottom electrode (4-wire) /Bottom Left (5-wire) channel
7
D2
GND
Ground
8
D1
SCLK
Digital Input
SPI Serial Clock Input
9
C2
DIN
Digital Output
SPI Serial Data Input
10
C1
DOUT
Digital Output
SPI Serial Data Output
11
B1
NIRQ
Digital Output, open drain Interrupt Request Output, Active low, Need external pull-up
12
B2
NCS
Digital Input
SPI Chip Select Input, Active low
13
-
NRST
Digital Input
DFN package only, Reset Input, Active low, Internal pull-up resistor
14
-
(NC)
Not Connected
15
-
GND
Power input
Backside Ground
Touch
Screen
Interface
SX8652
VDD
X+/BR
Y+/TR
X-/TL
Y-/BL
DIN
NIRQ
SCLK
DOUT
GND
Control
SPI
Digital
Filter
ref+
ref-
ADC
in
out
OSC
POR
Vref
NCS
AUX/WIPER
VDD
To the
Host
To the
touch
screen
NRST (DFN only)
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