Philips 21PT9457 - Diagram A7, TDA9850, (IC801)

Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 45SK4.0L CA 9.
9.4.6 Diagram A7, TDA9850, (IC801)
Figure 9-7 Block Diagram and Pin Configuration
composite
baseband
input
+
+
C2
13
14
15
C5
16
Q1
ceramic
resonator
17
DEMATRIX
+
MODE
SELECT
+
C6
18
+
C7
19
DE-EMPHASIS
L+R
L − R/SAP
OUTL
OUTR
27
21
STEREO DECODER
SAP without DBX
23
C8
22
R1
C3
C4
LOGIC, I
2
C-
TRANSCEIVER
MAD
28
7
stereo
mono
SAP
to
audio
processing
9
8
SDA SCL
SUPPLY
+
C18
24
6
+
C19
12
10
V
ref
V
CAP
V
CC
SAP
DEMODULATOR
+
C16
5
C15
4
INPUT
LEVEL
ADJUST
+
11
C1
NOISE
DETECTOR
STEREO/SAP
SWITCH
C17
26
TDA9850
STEREO
ADJUST
DBX
+
C14
3
C13
R3
R2
1
2
+
32
+
31
+
30
+
29
C12
C11
C10
C9
+
25
+
20
C
L
C
R
only during
adjustment
TDA9850
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VEO
C
S
C
W
C
TS
C
TW
C
ND
C
SDE
C
L
C
R
C
SS
C
MO
V
ref
VEI
C
NR
C
M
C
DEC
LTUODNGA
SAP
OUTR
CER
MAD
DGND
SDA
SCL
V
CC
COMP
V
CAP
C
P1
C
P2
C
PH
C
ADJ
Block Diagram
Pin Configuration
H_17450_004.eps
200907