AKD4184 View Datasheet(PDF) - Asahi Kasei Microdevices
Part Name
Description
Manufacturer
AKD4184 Datasheet PDF : 36 Pages
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[AK4184]
ANALOG CHARACTERISTICS
Ta=-40°C to 85°C, AVDD = IOVDD = 3.3V, fs = 125 KHz, fSCLK=5MHz
Parameter
min
typ
max
Units
ADC for Touch Screen
Resolution
-
12
-
Bits
No Missing Codes
11
12
-
Bits
Integral Nonlinearity (INL) Error
-
-
±2
LSB
Differential Nonlinearity (DNL) Error
-
±1
-
LSB
Offset Error
-
-
±6
LSB
Gain Error
-
-
±4
LSB
Touch Panel Drivers Switch On-Resistance
XP, YP, RL=300Ω
XN, YN, RL=300Ω
-
10
-
Ω
-
10
-
Ω
XP Pull Up Register (when pen interrupt enable)
-
50
-
KΩ
Power Supply Current
Touch Screen only fs=125KHz (PD bit=“0”)
-
400
680
μA
Touch Screen only fs=125KHz (PD bit=“1”)
-
500
850
μA
Oscillator on, Touch Screen Driver off, A/D power down
-
72
120
μA
Full Power Down (all blocks power down when CSN=“H”, RESETN=“L”) -
0
5
μA
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)
“H” level output voltage (@ Iout = -250μA)
VOH IOVDD-0.4
“L” level output voltage (@ Iout = 250μA)
VOL
-
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
Pulldown Resistance (R1 ~ R5)
Rkey
-
Pulldown Resistance (GP0 ~ GP7 @ input)
Rgp
-
Tri-state Leakage Current
IOLK
All pins except for XP, YP, XN, YN pins
-10
XP, YP, XN, YN pins
-50
typ
-
-
-
-
-
-
-
-
16
1000
-
-
max
Units
-
V
0.2xIOVDD V
10
μA
-
V
0.4
V
-
V
0.4
V
-
V
-
KΩ
-
KΩ
10
μA
50
μA
MS0603-E-00
7
2007/04
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