Table of Contents
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7D-1
TUNER 95 BOARD
TABLE OF CONTENTS
Blockdiagram ..................................................................7D-1
Adjustmant table .............................................................7D-2
Component layout...........................................................7D-2
Circuit diagram ................................................................7D-3
Partslist ...........................................................................7D-4
7D-1
BLOCKDIAGRAM
+FM
6
3
+B
AGC
FM FRONTEND
A
1102
1
Ant1
IF Out
F
a
F 10,7 MHz
if
F o
4
GND
Osc Out
f
= f
+ f
0
in
if
MT
VT
MT
5
AM-RF
AM-OSC
5102
5123
MW
MW
2106
5103
5122
LW
LW
B
IF-AM
IF-AM
10,7MHz
450kHz
450kHz
VCC1
VDD
5111
5112
7
23
35
34
33
38
40
41
VCC1
VDD
FM-IF2
V Stab B
FM-IF2I V Stab A
AM-MIX Out
AM-IF1 In
STABILIZER
10,7MHz
7
37
FM-IF1I In
FM
FM
IF1
IF2
5
FM Osc.
CHARGE
8
PUMP
AM
FM
6
FRONTEND
DET
8
I-Tune
AM
MIXER
AM
OSC.
2
AM-RF
C
Ripple
AM-Osc.
FM GND
RF GND
IF GND
Dig. GND
RF GND
FM-Demod
1
6
3
4
17
26
42
18
10,7MHz
MW/LW-SELECTION
7D-1
AM-DET
2
1
450kHz
5114
VCC2
TEA5762
36
32
19
20
22
AM-IF2
AM-AFC
AFC-
AFC+
VCC2
29
WRITE Enable
AFC
DATA
28
27
CLOCK
31
P1
AM
AM
IF
DET
39
FM/AM
CONTROL
30
P0
Mono/
Stereo
24
Left
14
Mute
13
STEREO
DECODER
Right
15
XTAL
AGC
OSC
PILOT
16
Filter
Fieldstrength
AGC
AF-Out
Indc.
MPX-In
VC0
LPF
44
10
21
25
11
9
12
75kHz
3142
+FM
7
VCC1
ANTI BIRDY FILTER
VC0
VDD
RDS
VCC2
1121
1
GND
2
RDS
RDS
3
ENABLE
4
DATA
5
CLOCK
6
STEREO
3
4
1124
1
LEFT
2
GND
3
RIGHT
4
VCC
PCS 83 453
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Table of Contents
