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參數(shù)資料
| 型號(hào)： | AK4184VG |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | TSC with Keypad Scanner and GPIO Expander |
| 中文描述： | 臺(tái)糖與鍵盤掃描儀和GPIO擴(kuò)展 |
| 文件頁數(shù)： | 7/36頁 |
| 文件大?。?/td> | 597K |
| 代理商： | AK4184VG |
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[AK4184]
MS0603-E-00
2007/04
7
ANALOG CHARACTERISTICS
Ta=-40
°
C to 85
°
C, AVDD = IOVDD = 3.3V, fs = 125 KHz, fSCLK=5MHz
Parameter
ADC for Touch Screen
Resolution
No Missing Codes
Integral Nonlinearity (INL) Error
Differential Nonlinearity (DNL) Error
Offset Error
Gain Error
Touch Panel Drivers Switch On-Resistance
XP, YP, RL=300
Ω
XN, YN, RL=300
Ω
XP Pull Up Register (when pen interrupt enable)
Power Supply Current
Touch Screen only fs=125KHz (PD
bit=“0”)
Touch Screen only fs=125KHz (PD
bit=“1”)
Oscillator on, Touch Screen Driver off, A/D power down
Full Power Down
(all blocks power down when CSN=“H”, RESETN=“L”)
min
typ
12
12
-
±
1
-
-
10
10
50
max
-
-
±
2
-
±
6
±
4
-
-
-
Units
Bits
Bits
LSB
LSB
LSB
LSB
Ω
Ω
K
Ω
-
11
-
-
-
-
-
-
-
-
-
-
-
400
500
72
0
680
850
120
5
μ
A
μ
A
μ
A
μ
A
DC CHARACTERISTICS (Logic I/O)
Ta = -40
°
C to 85
°
C, IOVDD = 1.6V to 3.6V
Parameter
Digital Input(CSN, SCLK, DIN, R1
~
R5, GP0
~
GP7)
“H” level input voltage
“L” level input voltage
Input Leakage Current
Digital Output (DOUT, BUSY, BRCONT, PENIRQN, KEYIRQN)
“H” level output voltage (@ Iout = -250
μ
A)
“L” level output voltage (@ Iout = 250
μ
A)
Digital Output(GP0 ~ GP7)
“H” level output voltage (@ Iout = -1.5mA)
“L” level output voltage (@ Iout = 1.5mA)
Digital Output(C1 ~ C6)
“H” level output voltage (@ Iout = -1.5mA)
Resistance
Pulldown Resistance (R1
~
R5)
Pulldown Resistance (GP0
~
GP7 @ input)
Tri-state Leakage Current
All pins except for XP, YP, XN, YN pins
XP, YP, XN, YN pins
Symbol
min
typ
max
Units
VIH
VIL
IILK
0.8xIOVDD
-
-10
-
-
-
-
V
V
μ
A
0.2xIOVDD
10
VOH
VOL
IOVDD-0.4
-
-
-
-
V
V
0.4
VOH
VOL
IOVDD-0.4
-
-
-
-
V
V
0.4
VOH
IOVDD-0.4
-
-
V
Rkey
Rgp
IOLK
-
-
16
1000
-
-
-
-
K
Ω
K
Ω
μ
A
μ
A
-10
-50
10
50
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