AN7273

Manufacturer Part NumberAN7273
DescriptionAM Tuner, FM/AM IF Amplifier Circuit
ManufacturerPanasonic
AN7273 datasheet
 


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ICs for FM/AM Tuner
AN7273, AN7273S
AM Tuner, FM/AM IF Amplifier Circuit
Overview
The AN7273 and the AN7273S are the ICs designed
for Hi-Fi stereo tuner. They are functioned with stop signal
pin besides the AN7223S function.
Features
Level meter output (FM–AM common use)
Stop signal output (for synthesizer tuner)
AM : including RF amplifier and high sensitivity
Low power consumption
Low shock noise level from function switch operation
Fewer external parts
Block Diagram
8
9
1
AM–FM
IF Amp.
7
4
3
AM RF
Amp.
AN7273
AN7273S
12
FM IF
FM
Amp.
Quad. Det.
Mute or Shock
Level Meter
Noise Canceller
AM
AM
AGC
Mixer
L. Osc.
5
18
6
Unit : mm
1
18
17
2
3
16
4
15
5
14
6
13
7
12
8
11
9
10
0.51min.
6.3 0.25
(3.45)
3.8 0.25
3 ~ 15˚
7.62 0.25
18-Lead DIP Package (DIP018-P-0300E)
Unit : mm
1
18
9
10
0.3
5.4 0.3
7.7 0.3
18-Lead SOP Package (SOP018-P-0300)
14
V
CC
17
V
Mute Det.
REF
16
AF Amp.
13
15
AM Det.
2
10
11
V
GND
CC (AM)

AN7273 Summary of contents