AK4182AVN

[AKD4182A-A]
AKD4182A-A
AK4182A Evaluation Board Rev.0
Abstract
AKD4182A-A is the board for evaluation of the touch screen controller AK4182A which adopted the QFN small package
suitable for the cellular phone, the handheld game machine, etc. Since AKD4182A-A has a touch-panel I/F and a digital
I/O power supply input terminal, it is easily connectable with a target system of low power/voltage drive. Furthermore,
since the analog input terminal is equipped analog voltage and external battery voltage can also be measured.
Function
„
„
„
„
„
AK4182A (QFN16 package)
Digital I/F for uP
Touch-panel I/F
Analog input terminal
Digital I/O power supply terminal
Touch Panel I/F
Digital I/F
VCC
AGND
AK4182A
AIN_P
IFVDD
AIN_N
DGND
VREF
IOVDD
Figure 1 AKD4182A-A Block Diagram
„ Operation procedure
1. Wiring of a power supply
VCC (Red) =2.2V∼3.6V
AGND (Black) = 0V
DGND (Black) = 0V
IOVDD (Blue) = IFVDD (Orange) = 1.5V∼VCC
JP1, JP5-short
2. A setup of evaluation mode and a jumper
3. Power supply injection
„ Evaluation mode selection
1) Position, Pen Pressure
2) Analog input voltage measurement
1) Position, Pen Pressure
4 wire touch-panel (X+, X-, Y+, and Y-) is connected to J1 connector.
Jumper setup
JP2 (XPSEL) ---------select XP
JP3 (YPSEL) ---------select YP
JP4 (XNSEL) ---------select XN
JP6 (YNSEL) ---------select YN
[KM077600]
-12007/07
[AKD4182A-A]
2) Analog input voltage measurement
AIN_P (Green) --------- Analog input
AIN_N (Black) --------- AGND
Input pin selection: PORT2 (VBAT, IN)
„ Power supply injection, Evaluation
1) Digital serial data input
When the control command data indicated by specification from digital I/F (P1 or PORT3) was inputted the AD
conversion is carried out and is outputted from a DOUT.
„ Driver install
Attached software is the application software which checks the function of the AK4182A. Windows(R) Win98, Win2K,
and WinXP are supported. However, to make it operate on Win2K and XP, it is necessary to install driver in advance.
Please follow a procedure with reference to DriverSetupe.pdf. Installation of a driver is unnecessary to use it by the
Windows 98 system.
„ Run the software
First match Port Address of your PC environment. Measurements are started when the start button is clicked after select
Channel Selection, MODE, and Power Down 1 and 2. A result will be displayed on AD OUT Section. When carrying out
position detection, the position where pen clicked on the touch panel is measured.
Operation can set up two control commands. Continuation operation can be performed. Each data (mean, max, and min)
is also displayed at the same time. PENIRQN can be seen by the break of a command.
[KM077600]
-22007/07
[AKD4182A-A]
„ Trouble Shooting
1.
Application error is occurred and doesn’t start up
If the operating system is Windows 2000/XP, Please install AKMport driver first.
2.
MEAN value in AD OUT section does not change when click start button (cannot write control command to
AK4182A)
Please set the port address to your PC platform environment.
3.
The MEAN, MAX, MIN value doesn't change wherever the pen pushes down on the panel.
There is a possibility of the trouble of the contact of the relay connector (plat 8pin-8-wire converter) that connects
the touch panel. Please open JP2, 3, 4, and 6 on the evaluation board, measure panel seat resistance (XP-XN,
YP-YN), and check the resistance. Generally, the panel seat resistance is hundreds of Ω. There is a possibility that
the touch panel is not correctly connected if the value is over thousands of kΩ. Please connect the relay connector
and check the resistance value again.
[KM077600]
-32007/07
[AKD4182A-A]
Revision History
Date
(YY/MM/DD)
07/07/09
Manual
Revision
KM077600
Board
Revision
0
Reason
Page
Contents
First Edition
IMPORTANT NOTICE
z These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei
EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
z AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the application or
use of any information contained herein.
z Any export of these products, or devices or systems containing them, may require an export license or other official
approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange,
or strategic materials.
z AKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or
other hazard related device or systemNote2), and AKEMD assumes no responsibility for such use, except for the use
approved with the express written consent by Representative Director of AKEMD. As used here:
Note1) A critical component is one whose failure to function or perform may reasonably be expected to result,
whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and
which must therefore meet very high standards of performance and reliability.
Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or
for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform
may reasonably be expected to result in loss of life or in significant injury or damage to person or property.
z It is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or otherwise
places the product with a third party, to notify such third party in advance of the above content and conditions, and the
buyer or distributor agrees to assume any and all responsibility and liability for and hold AKEMD harmless from any
and all claims arising from the use of said product in the absence of such notification.
[KM077600]
-42007/07
5
4
3
2
1
TouchScreen
VCC
AIN_P
PORT2
YP
5
4
3
2
1
R1 51
XN
XP
6
7
8
9
10
6
7
8
9
10
D1
BNCXP
BNCYP
VBAT
IN
LED(Red)
AIN_P
J1
PORT1
1
YN
2
8
7
6
5
4
3
2
1
5
4
3
2
1
P_DCLK
UPD I/F
PORT3
R2
AIN_N
P_DCLK
P_CSN
P_DIN
1K
D
PORT4
5
4
3
2
1
R3 51
6
7
8
9
10
BNCXN
BNCYN
IFVDD
6
7
8
9
10
5
4
3
2
1
D
4182 I/F
AIN_N
R4
51
1K
IOVDD
U1
DCLK
PENIRQN
BUSY
DOUT
R7
51
7
CSN
C
1
3
5
9
11
13
1A
2A
3A
4A
5A
6A
VCC
14
1Y
2Y
3Y
4Y
5Y
6Y
2
4
6
8
10
12
TP2
IN
R9
TP3 TP4 TP5 TP6
YN XN YP XP
PENIRQ
BUSY
DOUT
GND
IOVDD
P_DCLK
R10
IN
R15
DCLK
JP1
ICC
TP10
Tantalum
TP8
DOUT
BUSY
C5
0.1u
ceramic
100K
TP11
R17
DIN
YPSEL
1
2
3
4
R20
VCC
XP
YP
XN
0
16
15
14
13
5
6
7
8
XNSEL
JP6
DOUT
PENIRQN
IOVDD
AK4182 VREF
12
11
10
9
R19
R21
YN
2A4
2A3
2A2
2A1
1A4
1A3
1A2
1A1
17
15
13
11
8
6
4
2
YNSEL
51
R12
51
R14
51
4
3
2
1
RP3
RP2
CONNECTOR DB25
3
2
1
47K
47K
51
JP5
B
IOVDD
VREF
C7
0.1u
TP13
C8
open
DGND
CL2
C9
0.001u
1
C10
R11
IDD
2
0
P_DIN
C
IOVDD
AGND
BNCYN
19
1
SN74LVC244A
PENIRQN
YN
GND
VBAT
IN
XN
BNCXN
TP12
PEN
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
P_CSN
2OE
1OE
C6
47p
51
DCLK
CSN
DIN
BUSY
U3
0
JP4
Cut Land short
GND
VCC
R18
YP
BNCYP
1
XPSEL
JP3
C4
10u
R16
51
2
0
CSN
3
5
7
9
12
14
16
18
DCLK
CSN
DIN
R13
TP9
CL1
+
10
20
DOUT
BUSY
TP7
B
C3
0.1u
51
VCC
XP
47K
U2
open
BNCXP
R8
IOVDD
DIN
JP2
P1
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
0.1u
51
C2
VBAT
R6
51
RP1
SN74LVC07A
TP1
BAT
R5
51
1
2
3
C1
0.001u
C11
0.1u
C12
open
2
1
Cut Land open
C13
0.001u
CL5
Cut Land short
C14
0.001u
C15
0.001u
C16
0.001u
AGND
IN
DGND
CL3
2
VBAT
1
Cut Land open
AGND
DGND
CL4
A
2
A
1
Cut Land open
Title
-5-
AKD4182-A Main board
Size
A3
Date:
5
4
3
2
Document Number
<Doc>
Monday, July 09, 2007
Rev
0.84
Sheet
1
1
of
1
-6-
-7-
-8-
-9-
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