Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
10 Ω
handbook, full pagewidth
5 V
analog
AF
SAMPLE
AM
RDS/
FM
MPX
AF
HOLD
AUDIO/IF MPX
100 nF
47 µF
47 µF
A
B
C
10 Ω
5 V
digital
100 nF
(1)
270 pF
68
kΩ
68
kΩ
4.7 kΩ
D
100
nF
100
nF
100
nF
10 Ω
L4
8.5 V
BB156
100 nF
47 µF
3.3 µH
22 Ω
3.3 µH
10
kΩ
10
kΩ
100 nF
22 nF
100 nF
2.7 1.8
pF pF
6.8 nF
47 µF
47 µF
40
41 42
43
44 45
46
47
48
49
50
51
SDA
SCL
SEQUENTIAL
CIRCUIT FOR
RDS UPDATING
AM
DETECTOR
POWER
SUPPLY
VCO
MUTE
E
F
2 ms/
20 ms
G
2
I
C-bus
FM IF
AM IF2
52
53
SDA
SCL
2
I
C-bus
interface
IF
COUNT
2
I
C-BUS
H
54 IF2GND
55
DGND
AM
IF AGC
LEVEL
DAA
4.7
kΩ
L3
DEMODULATOR
56
I
57
58
J
K
L
AFC
47 µF
AM
LEVEL
BLANK
PULSE
Σ
AM/FM
LEVEL
59
60
61
M
N
FM
LIMITER/
LEVEL
CRYSTAL
OSCILLATOR
×
AM
20.5
MHz
MIXER2
O
P
62
220
nF
120
kΩ
IFAMP2
Q
R
63
64
L1: P7PSG-X398
L2: P7PSGAE-5078D = S
L3: 392BC-1977Z
L4: E543SNAS-02010
L5: 611SNS-1066Y
L6: 369INS-3076X
L7: MURATA LQN
L8: MURATA LQN
(1): series NP0
12
11 10
9
8
7
6
5
4
3
2
1
L2
330 Ω
22 Ω
100
nF
100
nF
22
nF
220
nF
100
nF
22 nF
22 µF
IF1GND
coaxial connector
test pin
jumper
SFE10.7
MS3
SFR
450H
SFE10.7
MS3
to TEA6880H
S
100 nF
100 nF
304 Ω
100 nF
100 nF
100 nF
100 nF
2 kΩ
304 Ω
330 Ω
52 Ω 2 Ω
47 Ω
330 Ω
2 Ω 52 Ω
2 kΩ
FM IF1
output
FM IF2 AM IF2
input input
FM IF2
output
limiter
input
AM IF
output
MHB896
Fig.10 Test circuit (continued from Fig.9).
37
2001 Apr 12
NXP [ NXP ]
