TEA6824 Просмотр технического описания (PDF) - Philips Electronics
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TEA6824 Datasheet PDF : 36 Pages
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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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