AN7273 View Datasheet(PDF) - Panasonic Corporation

Part Name

Description

Manufacturer

AN7273

ICs for FM/AM Tuner(AM Tuner, FM/AM IF Amplifier Circuit)

Panasonic Corporation 

AN7273, AN7273S

s Application Circuit

ICs for FM/AMTuner

D1 : MA27W

From

FM Front

End.

330Ω

FM 47Ω

0.022

µF

AM

+

–

2.2µF V15

0.022µF + +

––

47µF

+

–

+ 0.022µF

–

470Ω

0.0047µF

T1

T2 51Ω D1

18 17 16 15 14 13 12 11 10

VCC=5V

VO (FM, AM)

27kΩ

0.022µF

AN7273/S

123456789

+

+

–

–

0.022µF 0.022µF

2kΩ

10kΩ

T3

CF1

Mute

ON

OFF

s Printed Circuit Board Layout

AM ANT

SW

FM

AM

2.2kΩ

FM IF Input

C1

AN7273

ANT

T3

OSC

CF2

1

AM

IN

T2

18

10µF

CF1 100µF

4.7µF

47pF

0.022µF

0.022µF

0.022µF

T1

10kΩ

47Ω

100µF

470Ω

VCC 1µF

+–

27kΩ

0.01µF

Mute SW

MA27W (Matsushita)

VCC

AF Output

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