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AK4180 PDF预览

AK4180

更新时间: 2024-11-03 04:32:03
品牌 Logo 应用领域
AKM 控制器
页数 文件大小 规格书
17页 129K
描述
Touch Screen Controller

AK4180 数据手册

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[ASAHI KASEI]  
[AK4180]  
Touch Screen Controller  
AK4180  
General Description:  
Features:  
The AK4180 is a 4-wire touch screen controller that incorporates  
a 12-bit 125kHz sampling SAR A/D converter. The AK4180 can  
detect the pressed screen location by performing two A/D  
conversions. In addition to location, the AK4180 also measures  
touchscreen pressure.  
„ Sampling Frequency: 125kHz(max)  
„ Pen Pressure Measurement  
„ On-Chip Thermo Sensor  
„ Two Auxiliary Analog Inputs  
„ Direct Battery Measurement  
„ 4-wire I/F  
On-chip VREF can be utilized for two analog auxiliary inputs  
and battery monitoring, with the ability to measure voltages from  
0V to 5V.  
„ On-Chip Voltage Reference(2.5V)  
„ 12 bit SAR type A/D Converter  
„ Low Power Consumption (250µA)  
„ Low Voltage Operation (2.7V - 3.6V)  
„ Package  
The AK4180 also has an on-chip temperature sensor.  
16pin TSSOP  
DCLK  
CSN  
XP  
YP  
DIN  
Control  
XN  
Logic  
DOUT  
YN  
IN1  
IN2  
BUSY  
Internal  
VREF(2.5V)  
VREF  
VBAT  
R1  
VREF+  
VREF-  
AIN+  
12bit  
ADC  
R2  
AIN- (SAR type)  
PEN  
PENIRQN  
INTERRUPT  
Temp.  
Sensor  
VCC  
GND  
Block Diagram  
<MS0195-E-01>  
1
2003/02  

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