6 (9)

DA9179.002

19 May, 2005

TYPICAL APPLICATION

+

V

BATTERY

Receiver

Output

C

AGC

C

DEC

Power Down /

Fast Startup /

Frequency Selection

Optional

Control

for AGC on/hold

X

3

X

1

X

2

Ferrite

Antenna

C

ANT1

C

ANT3

L

ANT

C

ANT2

AGC Amplifier

Power Supply/Biasing

Demodulator

&

Comparator

RFIM

RFI2

VDD

VSS PDN1

AGC

DEC

OUT

QO3

QI

AON

QO1

QO2

RFI3

PDN2

RFIP

Note 1

Note 2

Figure 1

Application circuit of tri band receiver MAS9179

+

1.4 V

Receiver

Output

C

AGC

10 µF

C

DEC

47 nF

Power Down /

Fast Startup /

Frequency Selection

Optional

Control

for AGC on/hold

X

3

40.003 kHz

X

1

77.503kHz

X

2

60.003kHz

Ferrite

Antenna

C

ANT1

1.2nF

C

ANT3

0.91nF

L

ANT

3.07mH

C

ANT2

3nF

AGC Amplifier

Power Supply/Biasing

Demodulator

&

Comparator

RFIM

RFI2

VDD

VSS PDN1

AGC

DEC

OUT

QO3

QI

AON

QO1

QO2

RFI3

PDN2

RFIP

Figure 2

Example circuit of tri band receiver MAS9179 for DCF77/MSF/WWVB/JJY frequencies