AKD4184-A Datasheet, PDF (1/24 Pages) Asahi Kasei Microsystems – Analog I/F IC which includes 4-wire resistive Touch Screen Controller

ASAHI KASEI
[AKD4184-A]
AKD4184-A
Evaluation Board Rev.0 for AK4184
GENERAL DESCRIPTION
The AKD4184 is an evaluation board for Analog I/F IC which includes 4-wire resistive Touch Screen
Controller, Keypad Scanner, GPIO Expander, LED Bias Controller and 12bit SAR ADC. It’s easy to
evaluate the Touch Screen function. The AKD4184 has also 6 x 5 Matrix Keypad, Switches on board
configured GPIO pin as input, LEDs for GPIO Output Circuits and LED Driver with dimmer control.
„ Ordering guide
AKD4184-A --- Evaluation board for AK4184
(Control software is packed with this. This control software does not operate on
Windows NT.)
FUNCTION
• 4-wire resistive Touch Screen Controller I/F
• 6 x 5 Matrix Keypad I/F
• 10pin header and 25pin D-sub connector for serial control interface
• LED dimmer control
• GPIO function
+
Touch Screen
8Pin Header
AVDD
GND
IOVDD
1035
Control Port
D-sub 25Pin
GPIO
8 Port
Keypad
6x5
AK4184
1035
Digital I/F
10Pin Header
1035
Digital I/F 2
10Pin Header
AK7953
(LED Driver)
LED
Figure 1. AKD4184 Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM085900>
-1-
2007/04