AKD4183 Datasheet, PDF (1/5 Pages) Asahi Kasei Microsystems – touch screen controller

[ASAHI KASEI]
[AKD4183]
AKD4183
AK4183 Rev.A Evaluation Board
Abstract
AKD4183 is the board for evaluation of the touch screen controller AK4183 which adopted the TMSOP small
package suitable for the cellular phone, the handheld game machine, etc. Since AKD4183 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.
„ AK4183 (TMSOP 10 package)
„ I²C I/F for uP
„ Touch-panel I/F
„ Digital I/O power supply terminal
Function
Touch Panel I/F
I²C I/F
VCC
AGND
AIN_XP
AIN_XN
AK4183
IFVDD
DGND
YN XN
„ Operation procedure
Figure 1 AKD4183 Block Diagram
1. Wiring of a power supply
VCC (Red) =2.5V∼3.6V
AGND (Black) = 0V
DGND (Black) = 0V
IFVDD (Orange) = VCC
JP1-short (default: CAD0pin = “L”), JP2-short
2. A setup of I²C address J1 (short: CAD0pin =”L“, open: CAD0pin = ”H“)
3. Connect I²C I/F (SCL, SDA) to uP.
4. A setup of evaluation mode, jumper
5. Power supply ON
6. Run the control soft
„ Evaluation mode selection
1) Position, Pen Pressure
4 wire touch-panel (X+, X-, Y+, and Y-) is connected to J1 connector.
Jumper setup
JP3 (XPSEL) ---------select XP
JP4 (YPSEL) ---------select YP
JP5 (XNSEL) ---------select XN
JP6 (YNSEL) ---------select YN
„ Power supply injection, Evaluation
1) Digital serial data input
When the control command data indicated by specification from digital I/F (P1 or PORT1) was inputted the AD
conversion is carried out and is outputted from a SDA.
„ Parallel Port Driver install
Attached software is the application software which checks the function of the AK4183. 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.
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2006/9