參數(shù)資料
型號(hào): AK4181AVT
廠商: ASAHI KASEI POWER DEVICES CORP
元件分類: 消費(fèi)家電
英文描述: TOUCH SCREEN CONTROLLER
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO16
封裝: PLASTIC, LEAD FREE, TSSOP-16
文件頁數(shù): 14/17頁
文件大?。?/td> 156K
代理商: AK4181AVT
[AK4181A]
MS0313-E-02
2010/09
6
DC Characteristics (Logic I/O)
Ta=-20 to 70
°C, VCC=2.7V to 3.6V
Parameter
Symbol
min
typ
max
Units
“H” level input voltage
VIH
0.8xVCC
-
V
“L” level input voltage
VIL
-
0.2xVCC
V
Input Leakage Current
IILK
-10
10
μA
“H” level output voltage
(@ Iout = -250uA)
VOH
VCC-0.4
-
V
“L” level output voltage
(@ Iout= 250uA)
VOL
-
0.4
V
Tri-state Leakage Current
All pins except for XP, YP, XN, YN pins
XP, YP, XN, YN pins
IOLK
-10
-50
10
50
μA
PENIRQN “L” level output voltage (100K
Ω Pull-Up)
VOLP
0.8
V
Switching Characteristics
Ta=-20
°C to 70°C, VCC=2.7V to 3.6V
Parameter
Symbol
min
typ
max
Units
Touch Panel (A/D Converter)
Throughput Rate
Fs
125
kHz
DCLK
frequency
duty
fDCLK
duty
10
40
50
2100
60
kHz
%
Tracking Time (Rin=600
Ω) (Note 5)
tTRK
1.428
μs
Conversion Time
tCONV
12
1/fDCLK
CSN “
↓” to First DCLK “↑”
t1
100
ns
CSN “
↓” to BUSY Tri-State Disabled
t2
200
ns
CSN “
↓” to DOUT Tri-State Disabled
t3
200
ns
DCLK High Pulse Width
t4
190
ns
DCLK Low Pulse Width
t5
190
ns
DCLK “
↓” to BUSY “↑”
t6
160
ns
Data Setup Time
t7
100
ns
Data Valid to DCLK Hold Time
t8
10
ns
Data Access Time after DCLK “
↓”
t9
160
ns
CSN “
↑” to DCLK Ignored
t10
0
ns
CSN “
↑” to BUSY High-Z state
t11
200
ns
CSN “
↑” to DOUT High-Z state
t12
200
ns
Note 5. The actual tracking periods are 3tDCLK. (tDCLK=1/fDCLK)
CSN
DCLK
DIN
BUSY
DOUT
t1
t2
t3
t4
t5
t7
t8
t6
t9
t10
t11
t12
PD0
D11
D10
D0
50
%VCC
50
%VCC
VOH
VOL
50
%VCC
VOL
VOH
Figure 1 AK4181A Timing Diagram
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