ak4182 AKM Semiconductor, Inc., ak4182 Datasheet - Page 6

• Manufacturer Part Number: ak4182
• Description: Touch Screen Controllers
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Ta = -40°C to 85°C, IOVDD = 1.5V to 3.6V
Parameter
“H” level input voltage
“L” level input voltage
Input Leakage Current
“H” level output voltage
“L” level output voltage
Tri-state Leakage Current
Ta = -40°C to 85°C, VCC = 2.2V to 3.6V, IOVDD = 1.5V to VCC, CL = 50pF
Parameter
Touch Panel (A/D Converter)
Throughput Rate
DCLK
Tracking Time (Rin=600Ω) (Note 5)
Conversion Time
CSN “↓” to First DCLK “↑”
CSN “↓” to BUSY Tri-State Disabled
CSN “↓” to DOUT Tri-State Disabled
DCLK High Pulse Width
DCLK Low Pulse Width
DCLK “↓” to BUSY “↑”
Data Setup Time
Data Valid to DCLK Hold Time
Data Access Time after DCLK “↓”
CSN “↑” to DCLK Ignored
CSN “↑” to BUSY Hi-Z state
CSN “↑” to DOUT Hi-Z state
Note 5. The actual tracking periods are 3tDCLK. (tDCLK=1/fDCLK)
MS0411-E-00
frequency
duty
DOUT
BUSY
DCLK
CSN
DIN
All pins except for XP, YP, XN, YN pins
t1
t3
t2
(@ Iout = -250µA)
(@ Iout= 250µA)
XP, YP, XN, YN pins
t7
t4
t8
DC Characteristics (Logic I/O)
Figure 1 AK4182 Timing Diagram
Switching Characteristics
t5
Symbol
tCONV
fDCLK
tTRK
duty
t10
t11
t12
t4
fs
t1
t2
t3
t5
t6
t7
t8
t9
Symbol
IOLK
VOH
IILK
VOL
VIH
PD0
VIL
6
t6
0.8xIOVDD
IOVDD-0.4
1.428
min
min
100
190
190
100
-10
-10
-50
10
40
10
t6
0
-
D11
t9
typ
typ
D10
50
-
-
-
-
0.2xIOVDD
2100
max
max
125
200
200
160
160
200
200
0.4
10
10
50
60
12
D0
2005/08
[AK4182]
t10
t11
1/fDCLK
Units
Units
kHz
kHz
µA
µA
µA
µs
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t12
V
V
V
V
50%VCC
VOL
50%VCC
50%VCC
VOH
VOH
VOL