AN7273 Datasheet, PDF (1/5 Pages) Panasonic Semiconductor – AM Tuner, FM/AM IF Amplifier Circuit

ICs for FM/AM Tuner
AN7273, AN7273S
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.
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
AN7273
1
18
2
17
3
16
4
15
5
14
6
13
7
12
8
11
9
10
6.3±0.25
Unit : mm
0.51min.
3.8±0.25 (3.45)
3 ~ 15˚
7.62±0.25
+
0.3 ^–
00..1025
18-Lead DIP Package (DIP018-P-0300E)
AN7273S
Unit : mm
1
18
9
10
s Block Diagram
1
7
89
AM–FM
IF Amp.
FM IF
Amp.
12
FM
Quad. Det.
0.3
5.4±0.3
7.7±0.3
18-Lead SOP Package (SOP018-P-0300)
Mute Det.
14 VCC
17 VREF
16
Level Meter
4
3
AM RF
Amp.
AM
Mixer
Mute or Shock
Noise Canceller
AF Amp.
13
15
AM
L. Osc.
AGC
AM Det.
5
18
6
2
10
11
VCC (AM)
GND