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參數資料
| 型號： | AK4180VT |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Touch Screen Controller |
| 中文描述： | 觸摸屏控制器 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 140K |
| 代理商： | AK4180VT |
[ASAHI KASEI]
[AK4180]
<MS0195-E-01>
2003/02
1
AK4180
Touch Screen Controller
YN
XN
YP
XP
12bit
ADC
(SAR type)
VBAT
VREF+
AIN+
VREF
DCLK
CSN
DIN
DOUT
IN1
BUSY
PENIRQN
VCC
GND
Internal
VREF(2.5V)
VREF-
Control
Logic
IN2
Temp.
Sensor
R1
R2
AIN-
PEN
INTERRUPT
Block Diagram
Features:
Sampling Frequency: 125kHz(max)
Pen Pressure Measurement
On-Chip Thermo Sensor
Two Auxiliary Analog Inputs
Direct Battery Measurement
4-wire I/F
On-Chip Voltage Reference(2.5V)
12 bit SAR type A/D Converter
Low Power Consumption (250
μ
A)
Low Voltage Operation (2.7V - 3.6V)
Package
16pin TSSOP
General Description:
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.
On-chip VREF can be utilized for two analog auxiliary inputs
and battery monitoring, with the ability to measure voltages from
0V to 5V.
The AK4180 also has an on-chip temperature sensor.
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