DA9081.006
1 August, 2005
TYPICAL APPLICATION
Note 1
X
2
X
1
Optional
Control
for AGC on/hold
QI
AON
Demodulator
&
Comparator
OUT
Receiver
Output
QO2
RFIP
L
ANT
Ferrite
Antenna
C
ANT1
C
ANT2
RFIM
QO1
AGC Amplifier
Power Supply/Biasing
RFI2
VDD
V
BATTERY
VSS PDN1 PDN2
AGC
+
DEC
C
AGC
C
DEC
Power Down /
Fast Startup /
Frequency Selection
Note 2
Figure 1
Application circuit of dual band receiver MAS9081
X
2
40.003kHz
X
1
60.003kHz
Optional
Control
for AGC on/hold
QI
AON
Demodulator
&
Comparator
OUT
Receiver
Output
QO2
RFIP
L
ANT
4.40 mH
Ferrite
Antenna
C
ANT1
1.5 nF
C
ANT2
2.0 nF
QO1
AGC Amplifier
RFIM
RFI2
Power Supply/Biasing
VDD
VSS PDN1 PDN2
AGC
DEC
+ C
AGC
10
µ
F
Power Down /
Fast Startup /
Frequency Selection
C
DEC
47 nF
1.4 V
Figure 2
Example circuit of dual band receiver MAS9081 for MSF/WWVB/JJY frequencies
5 (12)
MAS [ MICRO ANALOG SYSTEMS ]
