[AKD55X4-B]
<KM119202>
2015/09
(1-2) About jumper for power supply :
The roles of the jumper or the short resistance for each power supply supplied from the regulator are as follows.
Connection of the jumper for power supply :
Name
Function
Comments
Default Settings
R807
R808
AVDD1
Select regulator power supply
or jack for AVDD1
AVDD for AK55X4/X2:
R1007=short : 5.0V/3.3V regulator is used. (default)
R1008=short : Jack is used.
REG :
R807=short
R808=open
R809
R810
VBIAS
Select regulator power supply
or jack for VBIAS
VBIAS for Op-amp Referential Voltage source:
R809=short : 5.0V/3.3V regulator is used. (default)
R810=short : Jack is used.
REG :
R809=short
R810=open
R811
R812
VCC1,
VCC2
Select regulator power supply
or jack for 5.0V Regulator
power supply
VCC1, VCC2 for 5.0V Regulator power supply:
R811=short : 5.0V regulator is used. (default)
R812=short : Jack is used.
REG :
R811=short
R812=open
JP800
TVDD-VSEL
Select regulator power supply
3.3V or 1.8V for TVDD
TVDD for AK55X4/X2 and Logic IC:
JP800=3.3V : 3.3V regulator is used. (default)
JP800=1.8V : 1.8V regulator is used.
3.3V :
JP800=3.3V
JP801
TVDD-SEL
Select regulator power supply
or jack for TVDD
TVDD for AK55X4/X2 and Logic IC:
JP801=REG : Regulator is used. (default)
JP801=JACK: Jack is used.
REG :
JP801=REG
JP802
VDD18-SEL
Select External power supply or
LDO power supply of AK55XX
for VDD18
VDD18 selector for AK55X4/X2:
JP802=REG : External Power supply of 1.8V regulator is
used.
JP802=JACK : External Power supply of Jack is used.
JP802=open : LDO of AK55X4/X2 is used. (default)
LDO of AK55XX :
JP802=open
JP803
D33V-SEL
Select regulator power supply
or jack for D33V
D33V for AK4118A and Logic IC:
JP1003=REG : 3.3V regulator is used. (default)
JP1003=JACK : Jack is used.
REG :
JP803=REG
Table 1-2. Jumper for power supply
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