7-1
7-1
1
AM
Mix
er
AM
Osc.
AM IF
IF1
IF2
FM
Det.
AM
Det.
37
33
RADIO IC
TEA 5762
TUNER BO
ARD
ECO 6
Systems Cenelec
10
18
11
14
39
15
24
ri
ght
AM/FM
right
left
left
stereo
VCO
41
40
36
19
32
44
25
Stereo
Decoder
AFC
AFC +
AFC -
4
4
AG
C
Pre-
scaler
Multi-
pl
exe
r
Charge
pump
Stabiliz
er
CONTR
OL
Ref
erence
Oscillator
29
28
27
cloc
k
data
enab
le
P1
P0
31
30
prog
rammab
le
output por
ts
V
Loop
V
Loop
V
Loop
2
6
5
FM Osc.
C
D
450kHz
450kHz
450kHz
20
75kHz
V
Stab
AV
Stab
BV
Stab
B
V
Stab
A
V
Stab
B
10,7 MHz
10,7 MHz
35
9
Vdd
Vcc1
7
23
V
Stab
A
V
Stab
B
38
34
22
Vcc2
8
ECO6 Systems Cenelec, 140499
V
Loop
+FM
AM-RF
AM-Osc.
FM-IF 1
FM-IF 2
LF filter
MPX
bu
ff
er ampl.
RDS
(MPX)
5
RDS
(MPX)
stereo
cloc
k
data
enab
le
V
ersion
3
1120
AM-IF 1
AM-IF 2
AM-AFC
1
8
AM
F
rontend
2
AM-FRAME AERIAL
B
1103
1
101
(1
102)
A
FM
AM/FM
Discr
iminator
10,7 MHz
Vdd
+FM
Vcc1
Vcc
Vcc2
MW/L
W
AM-RF
,
AM-Osc.
1
Ant.
Osc.
out
GND
23
4
6
5
8
7
V
CC
V
varicap
MIXER
FM FR
ONTEND
IF
out
ECO6 Tuner Board
version:
SYSTEMS CENELEC
TABLE OF CONTENTS
Blockdiagram .....................................................................7-1
Schematic Diagram ...........................................................7-2
Component Layout ............................................................7-3
Adjustment table ................................................................7-3
Electrical Partslist ..............................................................7-4
BLOCK DIAGRAM
