Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.5.2
Diagram B03A, TDA9898HL (IC 7T57)
Figure 9-8 Internal block diagram and pin configuration
Block Dia
g
ram
Pin Confi
g
uration
H_16
8
00_029.ep
s
111007
A
B
C
D
E
F
G
H
TDA9897
I
2
C-BUS
SIF AGC
PEAK
AGC
TUNER
VIF PLL
AND
ACQUISITION
HELP
VIF
AFC
NYQUIST
FILTER
sideband
I
Q
VIF AGC
AM average
23
36
AGCDIN
IF3A
IF3B
SDA
3
4
IF2A
IF2B
9
10
2, 5, 18, 37
1
N
Y
S
F
L
F
I
V
F
L
2
P
O
T
3
1
1
1
i.c.
TAGC
45
47
IF1A
IF1B
6
7
FM peak
24
SCL
14
i.c.
SYNTHESIZER
AND VCO
SYNTHESIZER
AND VCO
standard
1
LFSYN2
25
ADRSEL
32
BVS
22
GNDD
38
SIDEBAND
FILTER
sideband
Q
I
SOUND
CARRIER
TRAP
trap reference
GROUP
DELAY
EQUALIZER
DECODER
I
2
C-BUS
TOPNEG
n.c.
optional tuner
AGC TOP for
IF based tuner
AGC and
radio signal
strength detector
onset
CTAGC
8
I
2
C-BUS TOP2
AND RSSI
RSSI
DETECTOR
AND
IF BASED
TUNER
AGC
GND
48
A
B
C
D
E
F
G
H
TDA9897
FM CARRIER AGC
FM
VIF AGC
port
I
2
C-bus
AM
AM DEMODULATOR
AND
FM NARROW-BAND PLL
LFFM
19
4 MHz FREQUENCY
REFERENCE
46
39
SUPPLY
BP on/off
OUTPUT
SWITCH
FM SWITCH
AM
26
27
21
43, 44
V
P
33
12
40, 41
15
+3 dB
GNDA
EXTFILO
FM
AMPLIFIER
BAND-PASS
FILTER
20
34
28
31
16
29
OUT2A
OUT2B
OUT1A
OUT1B
EXTFMI
MPP2
CVBS
MPP1
CAF2
CDEEM
CAF1
AUD
30
17
EXTFILI
4 MHz reference
input
R
(2)
R
(2)
OPTXTAL
FREF
EXTERNAL SOUND
BAND-PASS FILTER
(1)
SIF AGC
TAGC
FM AGC
AFC
35, 42
n.c.
TDA9897HL
TDA9898HL
N
I
D
C
G
A
2
N
Y
S
F
L
.
c
.
n
.
c
.
n
2
F
A
C
A
3
F
I
S
B
V
C
B
3
F
I
CIFAGC
(1)
BVS
D
U
A
A
1
F
I
B
2
T
U
O
B
1
F
I
A
2
T
U
O
C
G
A
T
C
1
F
A
C
A
2
F
I
B
1
T
U
O
B
2
F
I
A
1
T
U
O
2
P
O
T
L
E
S
R
D
A
1
P
P
M
D
N
G
FI
V
F
L
C
G
A
T
.
c.i
F
E
R
F
O
LI
F
T
X
E
.
c.i
2
P
P
M
V
I
LI
F
T
X
E
P
V
.
c.
n
P
.
c.
n
M
F
F
L
A
D
N
G
M
E
E
D
C
A
D
N
G
I
M
F
T
X
E
L
A
T
X
T
P
O
D
D
N
G
SDA
SCL
LFSYN1
n.c.
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
48
47
46
45
44
43
42
41
40
39
38
37
24
Содержание 32PFL7403D/10
Страница 59: ...Circuit Diagrams and PWB Layouts 59 Q528 2E LB 7 Layout LCD Supply 37 B 42 Top Side H_16750_070 eps 110108 ...
Страница 60: ...60 Q528 2E LB 7 Circuit Diagrams and PWB Layouts Layout LCD Supply 42 Bottom Side H_16750_071 eps 110108 ...
Страница 126: ...126 Q528 2E LB 7 Circuit Diagrams and PWB Layouts Personal Notes E_06532_013 eps 131004 ...