AKD4709-A Datasheet, PDF (2/28 Pages) Asahi Kasei Microsystems – AK4709 Evaluation Board Rev.2

ASAHI KASEI
[AKD4709-A]
EVALUATION BOARD MANUAL
„ Operation sequence
1) Set up the power supply lines.
Name of Color of
Jack
Jack
Voltage
VP
Orange +10.8∼+13.2V
Used for
VP of AK4709
VD1
Red
+3.13∼+3.47 VD1 of AK4709
VD2
Red +3.13∼+3.47V VD2 of AK4709
VVD
Red
+3.13∼+3.47V
VVD1 of AK4709
VVD2 of AK4709
VCC
AGND
VSS2
Red
Black
Black
+3.13 ∼
VVD1+0.3V
0V
0V
DGND Black
0V
Power supply of
logic
Analog Ground
Analog Ground
Digital Ground
Comment and attention
Should be always connected
Should be connected when jp5 (VD1_SEL) is
set to REG side.
Should be open when JP5 (VD1_SEL) is set to
VD1 side.
Should be connected when R 56(VD2_SEL) is
set to REG side.
Should be open when R56 (VD2_SEL) is set to
VD2 side.
Should be connected when JP8 (VVD_SEL) is
set to REG side.
Should be open when JP8 (VVD_SEL) is set to
VVD side.
Should be connected when JP7 (VCC_SEL) is
set to REG side.
Should be open when JP7 (VCC_SEL) is set to
VCC side.
Should be always connected
Should be always connected
Should be connected when JP4 (GND_SEL) is
set to AGND side.
Should be open when JP4 (GND_SEL) is set to
DGND side.
Default of
Jack
+12V
open
open
open
open
0V
0V
open
Table 1. Power supply lines
Each supply line should be distributed from the power supply unit.
2) Set-up jumper pins. (See the followings.)
3) Power on.
The AK4709 should be reset once bringing SW1 “L” upon power-up.
„ Jumper pins set up
[JP1] (GND): AINL- pin input select
OPEN: J20 (AINL): 3pin <Default>
SHORT: GND (Not use)
[JP2] (GND): AINR- pin input select
OPEN: J29 (AINR): 3pin <Default>
SHORT: GND (Not use)
[JP3] (VCRRC): VCRRC pin input select
I: J30 (VCRRC) <Default>
I/O: J23 (VCRCOUT)
[JP4] (GND): Analog ground and Digital ground
OPEN: Separated
SHORT: Common. (The connector “DGND” can be open.) <Default>
[JP5] (VD1): Regulator +3.3V or VD1 connector
<KM103002>
-2-
2011/06