[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-