MAS9081 Micro Analog Systems, MAS9081 Datasheet - Page 5

• Manufacturer Part Number: MAS9081
• Description: Stand-alone Dual Band Time Signal AM Receiver IC
• Manufacturer: Micro Analog Systems

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