MAS9081 View Datasheet(PDF) - Micro Analog systems

Part Name

Description

MFG CO.

MAS9081

Stand-alone am Receiver ic

Micro Analog systems 

DA9081.006

1 August, 2005

TYPICAL APPLICATION

LANT

Ferrite

Antenna

CANT1

CANT2

RFIP

RFIM

Note 1

X2

X1

QO2 QO1

QI

AGC Amplifier

Optional

Control

for AGC on/hold

AON

Demodulator

&

OUT

Comparator

Receiver

Output

Power Supply/Biasing

RFI2

VDD VSS PDN1 PDN2

VBATTERY

AGC

DEC

+ CAGC

CDEC

Figure 1

Power Down /

Fast Startup /

Frequency Selection

Application circuit of dual band receiver MAS9081

X2

40.003kHz

Note 2

X1

60.003kHz

Optional

Control

for AGC on/hold

LANT

4.40 mH

Ferrite

Antenna

CANT1

1.5 nF

CANT2

2.0 nF

RFIP

RFIM

QO2 QO1

QI

AGC Amplifier

AON

Demodulator

&

OUT

Comparator

Receiver

Output

Figure 2

Power Supply/Biasing

RFI2

VDD VSS PDN1 PDN2

1.4 V

AGC

DEC

+ CAGC

10 µF

CDEC

47 nF

Power Down /

Fast Startup /

Frequency Selection

Example circuit of dual band receiver MAS9081 for MSF/WWVB/JJY frequencies

5 (12)

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