AN7273 Ver la hoja de datos (PDF) - Panasonic Corporation
Número de pieza
componentes Descripción
Fabricante
AN7273 Datasheet PDF : 5 Pages
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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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