AKD4220-A Datasheet, PDF (2/34 Pages) Asahi Kasei Microsystems – various 7:3 audio and 6:3 video switches.

ASAHI KASEI
[AKD4220-A]
EVALUATION BOARD MANUAL
„ Operation sequence
1) Set up power supply lines.
Name of Color
jack of jack
+12V Green
AVDD Red
VVDD1 Bule
D5V
Red
DVDD Orange
D3.3V Orange
AGND
VVSS
DGND
Black
Black
Black
Voltage
+12V
+5V
+5V
+5V
+3.3V
+3.3V
0V
0V
0V
Used for
Open / connect
Regulator (T1)
Should be always connected when
power supply lines are supplied from
regulator of T1. In this case “JP9
(REG)” is set to short.
AVDD of AK4220 Should be always connected when
AVDD is not supplied from regulator
of T1. In this case “JP9 (REG)” is set to
open.
VVDD1 of AK4220 Should be always connected when
AVDD is not supplied from regulator
of T1. In this case “JP10 (VVDD1)” is
set to open.
Regulator (T2)
Should be always connected when
JP2(DVDD_SEL) is set to DVDD side.
Can be open when JP2(DVDD_SEL) is
set to REG side.
DVDD of AK4220 Should be always connected when
DVDD is not supplied from regulator
of T1 and T2. In this case “JP15
(DVDD)” is set to open.
Digital Logic
Should be always connected when
D3.3V is not supplied from regulator of
T1 and T2. In this case “JP13 (D3.3V)”
is set to open.
Analog Ground
Should be always connected.
Analog Ground
Should be always connected.
Digital Ground
Should be always connected, when JP1
(GND) is set to open.
Table 1. Set up the power supply lines
Default
Setting
+12V
Open
Open
Open
Open
Open
0V
0V
0V
(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.
AK4220 should be reset once bringing SW2 (PDN) to “L” upon power-up.
<KM083400>
-2-
2006/06