TEA6850 データシートの表示（PDF） - Philips Electronics

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TEA6850

IF filter / amplifier / demodulator for FM radio receivers

Philips Electronics 

Philips Semiconductors

IF filter / amplifier / demodulator for FM

radio receivers

PINNING

SYMBOL

RDSOUT

CENABLE

MPXIN

MPX

LVLUNW

MPXSEL

VP

GND

VGAP

VUT2

VUT1

IFADJ

BWADJ

IFIN

IFINI

GAINADJ

n.c.

CRYSTAL

GND

n.c.

OUT300I

OUT300Q

CLIM1I

CLIM2I

CLIM3I

CLIM4I

CLIM1Q

CLIM2Q

CLIM3Q

CLIM4Q

LVLADJ

LVLWEI

IHP60

CHPMUTE

CMUTE

DEMOLOOP1

DEMOLOOP2

COP2

CON2

COO1

July 1994

PIN

DESCRIPTION

1

output for RDS

2

chip enable

3

external audio frequency input (MPX signal)

4

audio frequency output (MPX signal)

5

unweighted level output

6

source selector for MPX signal

7

supply voltage (8.5 V)

8

ground (0 V)

9

internal reference voltage

10 reference voltage output

11 reference voltage output

12 input for IF filter frequency adjustment

13 input for IF filter bandwidth adjustment

14 IF signal input 1

15 IF signal input 2

16 input for mixer gain adjustment

17 not connected

18 crystal oscillator input

19 oscillator ground

20 not connected

21 IF filter output (0°)

22 IF filter output (90°)

23 IF limiter feedback 1

24 IF limiter feedback 2

25 IF limiter feedback 3

26 IF limiter feedback 4

27 IF limiter feedback 5

28 IF limiter feedback 6

29 IF limiter feedback 7

30 IF limiter feedback 8

31 input for level adjustment

32 weighted level output

33 input for high-pass −3 dB adjustment

34 output of rectified high-pass signal

35 mute input

36 demodulator output 1

37 demodulator output 2

38 MPX correction output 2

39 MPX correction input 2

40 MPX correction output 1

5

Preliminary specification

TEA6850

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