AN7280S Просмотр технического описания (PDF) - Panasonic Corporation

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AN7280S

FM Front-end IC for Car Radio

Panasonic Corporation 

AN7280S

s Pin Descriptions (Cont.)

Pin No.

Pin Name

Description

11 IF-Amp.

IF-Amp. output pin

12 IF-Amp. By-pass

14 IF-Amp. Input

IF-Amp. by-pass pin

IF-Amp. input pin

ICs for FM/AM Tuner

Equivalent Circuit

11

240Ω

3kΩ

ZOUT.300Ω

12

330Ω

14

13 IF-Amp. Gain Adjustment

Pin for adjusting IF-Amp. gain by external

resistance

340Ω

13

12kΩ

15

Mix. Output

16

17 Mix. By-pass

18 Mix. Input

19 ADX Output

20 GND

15

Mixer output pin

Mixer by-pass pin

17

18

Mixer input pin

VCC

PIN diode driver output pin

Determine maximum current to PIN diode

by Pin19 external resistance value.

Oscillator GND

16

2.2kΩ

2.2kΩ

19

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