TEA6824 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

fabricante

TEA6824

Front-end and PLL synthesizers for car radios

Philips Electronics 

Philips Semiconductors

In Car Entertainment (ICE) car radio

BLOCK DIAGRAM

Preliminary specification

TEA6824T

SFP450

1.5 nF

FMSTOP

Vref

LEVELADJ

TR5

7PSAG-1946D = S

VCC1

10.7 MHz

SFE10.7

22 23

37

330 Ω

35

100 nF

27

10.7 MHz

AM

24

100 kΩ

R39

100 kΩ

R40

100 100 nF

nF

22 kΩ

33 34 42

36

38

AM/FM

SWITCH

FM LIMITER

AM AMPLIFIER

LEVEL

DETECTOR

22 nF

÷ 2 /÷ 6

IF

28 AMPLIFIER

:N5

100 nF

29

10.7 MHz

19

10.7 MHz

20

TR3

ZS369SCS-2144AJ 56 pF

72.2 MHz

13

FM

LEVEL

AMPLIFIER

20 kHz

14

10

nF

61.5 MHz

PHILIPS

9922 521 00098

or Daiwa AT - 49

f ref

8

OSCILLATOR

9

10

REFERENCE

11 FREQUENCY

ADC

LEVEL

IF

COUNTER

BUFFER

ADC

MULTI-

PATH

TOKO

P392BC-1977Z

Vref MPX

AMAF

33 kΩ

L13

62 pF

AMSTOP

100 kΩ

R51

47 µF

33 kΩ

2.2 nF

4.3 kΩ

1

2 39

43

48

25

AFC

MPX

BUFFER

26

AM

DELOG

3

AMPLIFIER

15

16

TEA6824T

Vref

21

17

18

30

31

32

41

44

45

46

47

51

6

SDA

10 kΩ

SCL

7

10 kΩ

I2C-BUS

VINT1

VINT2

56

SUPPLY 4

54 53 55

10 kΩ

330 330

Ω

Ω

TK

COMPEN-

SATION

40

50

49

12

5

52

33 µF

10 kΩ

220 nF

100 nF

10 Ω

VCCD

+5 V

SCL SDA

LEVEL

VCCD

+5 V

220 nF

820 kΩ

10 nF

47 kΩ

n.c.

n.c.

n.c.

n.c.

n.c.

n.c.

n.c.

n.c.

n.c.

22 µH

100

nF

47 µF

VCC1

VCC

+8.5 V

470 nF

120 kΩ

10 Ω VCCA

+5 V

100

nF

33 µF

MHA537

1997 May 05

Fig.1 Block diagram.

4

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