ak4184 AKM Semiconductor, Inc., ak4184 Datasheet - Page 7

• Manufacturer Part Number: ak4184
• Description: Tsc With Keypad Scanner And Gpio Expander
• Manufacturer: AKM Semiconductor, Inc.

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 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”)
Ta = -40 C to 85 C, IOVDD = 1.6V to 3.6V
Parameter
Digital Input(CSN, SCLK, DIN, R1 ~ R5, GP0 ~ GP7)
Input Leakage Current
Digital Output (DOUT, BUSY, BRCONT, PENIRQN, KEYIRQN)
“H” level output voltage
“L” level output voltage
Digital Output(GP0 ~ GP7)
Digital Output(C1 ~ C6)
Resistance
Pulldown Resistance (R1 ~ R5)
Pulldown Resistance
Tri-state Leakage Current
MS0603-E-00
“H” level input voltage
“L” level input voltage
“H” level output voltage
“L” level output voltage
“H” level output voltage
XP, YP, RL=300
XN, YN, RL=300
All pins except for XP, YP, XN, YN pins
(GP0 ~ GP7 @ input)
(@ Iout = -250 A)
(@ Iout = 250 A)
(@ Iout = -1.5mA)
(@ Iout = -1.5mA)
XP, YP, XN, YN pins
(@ Iout = 1.5mA)
DC CHARACTERISTICS (Logic I/O)
ANALOG CHARACTERISTICS
Symbol
IOLK
VOH
VOH
VOH
Rkey
IILK
VOL
VOL
VIH
VIL
Rgp
7
0.8xIOVDD
IOVDD-0.4
IOVDD-0.4
IOVDD-0.4
min
-10
-50
-10
-
-
-
-
-
min
11
-
-
-
-
-
-
-
-
-
-
-
-
1000
typ
16
-
-
-
-
-
-
-
-
-
-
400
500
typ
12
12
10
10
50
72
0
-
-
-
1
0.2xIOVDD
max
0.4
0.4
10
10
50
max
-
-
-
-
-
-
680
850
120
5
-
-
-
-
-
-
2
6
4
2007/04
[AK4184]
Units
Units
LSB
LSB
LSB
LSB
Bits
Bits
K
K
K
V
V
V
V
V
V
V
A
A
A
A
A
A
A