AKD4145-A Datasheet, PDF (2/32 Pages) Asahi Kasei Microsystems – Evaluation board Rev.3 for AK4145

[AKD4145-A]
„ Operation sequence
Evaluation Board Manual
1) Set up the power supply lines.
(1-1) In case of using the regulator.<Default>
Set up the jumper pins.
JP
State
JP13
AVDD-SEL
REG(3.3V)
JP14
DVDD-SEL
REG(1.8V)
JP15
TVDD-SEL
REG(3.3V)
JP17
Logic2-SEL
TVDD
JP18
Logic1-SEL
REG(3.3V)
JP22
5V-REG
Short
JP23
3.3V-REG
REG(3.3V)
Set up the power supply lines.
[REG(12V)] (red) = +12V : for regulator and OP-Amp
[REG(5V)] (red) = open : “5V” is supplied from Regulator (T3)
[AVDD] (orange) = open : “3.3V” is supplied from Regulator (T1)
[DVDD] (orange) = open : “1.8V” is supplied from Regulator (T2)
[TVDD] (orange) = open : “3.3V” is supplied from Regulator (T1)
[Logic1] (orange) = open : “3.3V” is supplied from Regulator (T1)
[Logic2] (orange) = open : “3.3V” is supplied from Regulator (T1)
[AGND] (black) = 0V
: analog ground
[DGND] (black) = 0V
: digital ground
(Note) VA and VD of AK5357 (ADC) is supplied “3.3V” from regulator (T1).
(1-2) In case of using the power supply connectors.
Set up the jumper pins.
JP
State
JP13
AVDD-SEL
TM
JP14
DVDD-SEL
TM
JP15
TVDD-SEL
TM
JP17
Logic2-SEL
TM
JP18
Logic1-SEL
TM
JP22
5V-REG
Open
JP23
3.3V-REG
TM
Set up the power supply lines.
[REG(12V)] (red) = +12V : for OP-Amp
[REG(5V)] (red) = +5V
: for regulator (T1, T2)
[AVDD] (orange) = +2.7~3.6V : for AVDD of AK4145 (typ. 3.3V)
[DVDD] (orange) = +1.7~1.9V : for DVDD of AK4145 (typ. 1.8V)
[TVDD] (orange) = +1.7~3.6V : for TVDD of AK4145 (typ. 3.3V)
[Logic1] (orange) = +2.7~3.6V : for logic (typ. 3.3V)
[Logic2] (orange) = +1.7~3.6V : for logic of I/F (typ. 3.3V : the voltage same as TVDD)
[AGND] (black) = 0V
: analog ground
[DGND] (black) = 0V
: digital ground
(Note) VA and VD of AK5357 (ADC) is supplied “3.3V” from regulator (T1).
2) Set up the jumper pins and switches. (See the followings.)
3) Power on.
SW1 (AK4145), SW2 (ADC) and SW3 (DIR) should be reset once bringing toggle SW “L” upon
power-up. Please refer to Talble.1 on page.3 about setting of toggle SW.
<KM090003>
-2-
2008/08