AKD4254-A Datasheet, PDF (2/24 Pages) Asahi Kasei Microsystems – 7:2 video switches

ASAHI KASEI
[AKD4254-A]
„ Operation sequence
EVALUATION BOARD MANUAL
1) Set up power supply lines.
Name of jack Color of jack Voltage
AVDD
Red
+3.0V
AGND
Black
0V
Used for
AVDD of AK4254
and Digital Logic
Analog Ground
Open / connect
Should be always
connected.
Should be always
connected.
Table 1. Set up the power supply lines
(Note) Each supply line should be distributed from the power supply unit.
2) Set-up jumper pins and DIP switches. (See the followings.)
3) Power on.
AK4254 should be reset once bringing SW1 (PDN) to “L” upon power-up.
Default Setting
+3V
0V
„ Evaluation Mode
AKD4254-A can evaluate AK4254 by the following mode.
[1] Parallel Mode
[2] Serial Mode (3-wire)
[3] Serial Mode (I²C)
[1] Parallel Mode
(1-1) Set up jumper pins [JP3, JP4]
JP3 SDA
JP4 CSN
(OPEN)
(OPEN)
(1-2) Set up DIP Switches [SW2]
Pin No. [SW2]
1
2
3
4
5
6
7
Pin Name
SEL10
SEL11
SEL12
SEL20
SEL21
SEL22
P/S
ON (“H”,“1”) / OFF (“L”,“0”)
Input Select of VOUT1
Input Select of VOUT1
Input Select of VOUT1
Input Select of VOUT2
Input Select of VOUT2
Input Select of VOUT2
ON (“H”)
Table 2. Set up DIP Switches for Parallel Mode
<KM085203>
-2-
2007/01