[AK4184]
ANALOG CHARACTERISTICS
Ta=-40°C to 85°C, AVDD = IOVDD = 3.3V, fs = 125 KHz, fSCLK=5MHz
Parameter
min
ADC for Touch Screen
Resolution
-
No Missing Codes
11
Integral Nonlinearity (INL) Error
-
Differential Nonlinearity (DNL) Error
-
Offset Error
-
Gain Error
-
Touch Panel Drivers Switch On-Resistance
-
XP, YP, RL=300Ω
-
XN, YN, RL=300Ω
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”)
-
DC CHARACTERISTICS (Logic I/O)
Ta = -40°C to 85°C, IOVDD = 1.6V to 3.6V
Parameter
Symbol
min
Digital Input(CSN, SCLK, DIN, R1
~
R5, GP0
~
GP7)
“H” level input voltage
VIH
0.8xIOVDD
“L” level input voltage
VIL
-
Input Leakage Current
IILK
-10
Digital Output (DOUT, BUSY, BRCONT, PENIRQN, KEYIRQN)
VOH
IOVDD-0.4
“H” level output voltage (@ Iout = -250μA)
VOL
-
“L” level output voltage (@ Iout = 250μA)
Digital Output(GP0 ~ GP7)
“H” level output voltage (@ Iout = -1.5mA)
VOH
IOVDD-0.4
“L” level output voltage (@ Iout = 1.5mA)
VOL
-
Digital Output(C1 ~ C6)
“H” level output voltage (@ Iout = -1.5mA)
VOH
IOVDD-0.4
Resistance
Rkey
-
Pulldown Resistance (R1
~
R5)
Rgp
-
Pulldown Resistance (GP0
~
GP7 @ input)
Tri-state Leakage Current
IOLK
All pins except for XP, YP, XN, YN pins
-10
XP, YP, XN, YN pins
-50
typ
12
12
-
±1
-
-
10
10
50
400
500
72
0
max
-
-
±2
-
±6
±4
-
-
-
680
850
120
5
Units
Bits
Bits
LSB
LSB
LSB
LSB
Ω
Ω
KΩ
μA
μA
μA
μA
typ
-
-
-
-
-
-
-
-
16
1000
-
-
max
-
0.2xIOVDD
10
-
0.4
-
0.4
-
-
-
10
50
Units
V
V
μA
V
V
V
V
V
KΩ
KΩ
μA
μA
MS0603-E-00
7
2007/04
AKM [ ASAHI KASEI MICROSYSTEMS ]
