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參數(shù)資料
| 型號： | AK4181A |
| 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(shù)： | 13/17頁 |
| 文件大?。?/td> | 188K |
| 代理商： | AK4181A |
ASAHI KASEI
[AK4181A]
MS0313-E-00
2004/06
5
Analog Characteristics
Ta=-20
°C to 70°C, VCC=2.7V, External Vref =2.5V, fs=125kHz, fDCLK=16*fs, 12bit mode
Parameter
min
typ
max
Units
ADC for Touch Screen
Resolution
12
Bits
No Missing Codes
12
Bits
Integral Linearity Error
±2
LSB
DNL
±1
LSB
Analog Input Voltage Range
0
Vref
V
Offset Error
±6
LSB
Gain Error
±4
LSB
Touch Panel Driver
XP, YP, RL=300
XN, YN, RL=300
5
XP Pull Up Register (when pen interrupt enable)
50
K
PSRR (10KHz 100mVpp)
70
dB
Reference Output
Internal Reference
2.45
2.50
2.55
V
Drift
30
ppm/
°C
Load Capacitance
0.1
F
Reference Input
Input Voltage Range
VCC
V
Battery Monitor
Input Voltage Range
5.0
V
Input Impedance (Battery Measure Mode)
5
10
K
Accuracy (Note 2) External VREF = 2.5V is used
±2
%
Accuracy (Note 2) Internal Reference is used.
±3
%
Temperature Measurement
Temperature Range
-20
70
°C
Resolution (Note 3)
1.6
°C
Accuracy (Note 4)
±3
°C
Power Supply Current
Normal Mode (Internal Reference OFF)
250
500
A
Normal Mode (Internal Reference ON)
520
800
A
Full Power Down(when writing control command with PD1=PD0= “0”)
0
3
A
Note 2. Accuracy is the difference between the output code when 5 volts is input to the VBAT pin and the “ideal” code at 1.25
volts.
Note 3. “ideal” value derived from theory
Note 4. Accuracy is defined as the difference between the voltage measured by two current sources, and the ideal voltage derived
from theory at specific temperatures.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4181AVT | 制造商:AKM 制造商全稱:AKM 功能描述:TOUCH SCREEN CONTROLLER |
| AK4181AVTP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4182 | 制造商:AKM 制造商全稱:AKM 功能描述:Touch Screen Controller |
| AK4182A | 制造商:AKM 制造商全稱:AKM 功能描述:touch screen controller |
| AK4182AVN | 制造商:AKM 制造商全稱:AKM 功能描述:Touch Screen Controller |
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