ICs for FM/AM Tuner
AN7273, AN7273S
0.5±0.1
3.8±0.25
0.3
– 0.0
+ 0.1 5
2
AM Tuner, FM/AM IF Amplifier Circuit
s
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.
AN7273
1
2
3
21.7±0.3
4
5
6
7
8
9
6.3±0.25
18
17
16
15
14
13
12
11
10
Unit : mm
1.2±0.25
Unit : mm
12.6±0.3
s
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
0.51min.
(3.45)
3 ~ 15˚
7.62±0.25
18-Lead DIP Package (DIP018-P-0300E)
AN7273S
1.3
1
18
1.27
0.4±0.25
9
0.1
10
1.2±0.3
0.15
5.4±0.3
7.7±0.3
14 V
CC
17 V
REF
16
13
15
10
11
GND
0.65
0.3
18-Lead SOP Package (SOP018-P-0300)
s
Block Diagram
8
9
12
1
7
AM–FM
IF Amp.
FM IF
Amp.
FM
Quad. Det.
Mute Det.
Level Meter
Mute or Shock
Noise Canceller
AF Amp.
4
3
AM RF
Amp.
AM
Mixer
AM
L. Osc.
AGC
AM Det.
5
18
6
2
V
CC (AM)
2.54
PANASONIC [ PANASONIC SEMICONDUCTOR ]
