Panasonic AN7298FBP Datasheet

ICs for FM/AM Tuner

AN7298FBP

FM-IF, NC, and MPX IC for car radio

■ Overview

The AN7298FBP is an IC for car radio. The FM-IF,
NC (Noise Canceler) and MPX functions are integrated
into a single chip. The IC has the higher functions than
our conventional IC (AN7292NSC) and the characteris­tics of multi-pass detection, mute and SD functions are
improved.

■ Features

• IF sensitivity is high. (limiting sensitivity 26 dBµ)

• Adjustment-free VCO (912 kHz)

• Good linearity of S-meter output (adjusting funciton)

■ Applications

• Car radios

36 25

37

48

1

0.1±0.1

12

12.0±0.3

14.2±0.4

QFH048-P-1212

Unit: mm

24

13

(0.55)

+0.10

0.3±0.10.8

–0.05

0.15

14.2±0.4

12.0±0.3

1.3±0.1

2.8±0.2

1.3±0.1

1

AN7298FBP ICs for FM/AM Tuner

■ Block Diagram

37

38

39

40

41

42

43

44

45

GND

36

2nd

limiter

Reg.

1st

limiter

V

V

cont

35

det.

cont

DC amp.

34

33

32

Pilot

31

Quad det.

AFC amp.

Mute amp.

det.

30

V

CC

29

PNL

28

Band det.

IF count.

canceler

SD

Pilot

27

26

Pulse det.

AGC

25

24

23

22

21

20

19

18

17

16

46

47

48

Multipath

detector

1

ASC .ATC

stereo

demod.

2

3

4

5

6

7

8

Divider

9

10

VCO

11

15

14

13

12

2