MAS9179A3 查看數據表（PDF） - Micro Analog systems
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MAS9179A3 Datasheet PDF : 9 Pages
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TYPICAL APPLICATION
LANT
CANT1
Ferrite
Antenna
CANT3
CANT2
DA9179.002
19 May, 2005
RFIP
RFIM
X3
X2
X1
QO3 QO2 QO1
AGC Amplifier
Note 1
Optional
Control
for AGC on/hold
QI
AON
Demodulator
&
OUT
Comparator
Receiver
Output
RFI2
Power Supply/Biasing
RFI3
VDD
VBATTERY
VSS PDN1 PDN2
AGC DEC
+ CAGC
CDEC
Figure 1
Power Down /
Fast Startup /
Frequency Selection
Application circuit of tri band receiver MAS9179
Note 2
X3
40.003 kHz
X2
60.003kHz
X1
77.503kHz
Optional
Control
for AGC on/hold
LANT
3.07mH
CANT1
1.2nF
Ferrite
Antenna
CANT3
0.91nF
CANT2
3nF
RFIP
RFIM
QO3 QO2 QO1
AGC Amplifier
QI
AON
Demodulator
&
OUT
Comparator
Receiver
Output
Figure 2
RFI2
Power Supply/Biasing
RFI3
VDD
1.4 V
VSS PDN1 PDN2
AGC DEC
+ CAGC
10 µF
CDEC
47 nF
Power Down /
Fast Startup /
Frequency Selection
Example circuit of tri band receiver MAS9179 for DCF77/MSF/WWVB/JJY frequencies
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