ak4184a AKM Semiconductor, Inc., ak4184a Datasheet - Page 7

• Manufacturer Part Number: ak4184a
• 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 = “H”)
Ta = -40°C to 85°C, IOVDD = 1.6V to 3.6V
Parameter
Digital Input (CSN, SCLK, DIN, R1 ~ R5, GP0 ~ GP7 pins)
Input Leakage Current
Digital Output (DOUT, BUSY, BRCONT, PENIRQN, KEYIRQN pins)
“H” level output voltage (@ Iout = -250μA)
“L” level output voltage (@ Iout = 250μA)
Digital Output (GP0 ~ GP7 pins)
Digital Output(C1 ~ C6)
Resistance
Pulldown Resistance (R1 ~ R5 pins)
Pulldown Resistance (GP0 ~ GP7 pins @ input)
Tri-state Leakage Current
MS0947-E-00
“H” level input voltage
“L” level input voltage
“H” level output voltage (@ Iout = -1.5mA)
“L” level output voltage (@ Iout = 1.5mA)
“H” level output voltage (@ Iout = -1.5mA)
XP, YP, RL = 300Ω
XN, YN, RL = 300Ω
All pins except for XP, YP, XN, YN pins
XP, YP, XN, YN pins
DC CHARACTERISTICS (Logic I/O)
ANALOG CHARACTERISTICS
Symbol
IOLK
VOH
VOH
VOH
Rkey
VOL
VOL
IILK
VIH
VIL
Rgp
- 7 -
0.8xIOVDD
IOVDD-0.4
IOVDD-0.4
IOVDD-0.4
min
-10
-10
-50
-
-
-
-
-
min
11
-
-
-
-
-
-
-
-
-
-
-
-
1000
typ
16
-
-
-
-
-
-
-
-
-
-
400
500
typ
12
12
±1
10
10
50
72
0
-
-
-
0.2xIOVDD
max
max
0.4
0.4
680
850
120
10
10
50
±2
±6
±4
-
-
-
-
-
-
5
-
-
-
-
-
-
2008/04
Units
Units
LSB
LSB
LSB
LSB
Bits
Bits
KΩ
μA
μA
μA
μA
KΩ
KΩ
μA
μA
μA
Ω
Ω
V
V
V
V
V
V
V