Specifications

IC Data Sheets
EN 32 TCM3.1L LA8.
2009-Jun-05
8.8 Diagram B04, TDA9885 (IC U2)
Figure 8-8 Internal block diagram and pin configuration
Block Diagram
Pin Configuration
G_16510
_
TAGC
C
VAGC pos
C
BL
VIF-PLL
4 MHz
external
AFC
video output 2 V (p-p
)
[1.1 V (p-p) without tra
p
AUD
C
AF
de-emphasis
network
FM-PLL filter
sound intercarrier output
C
AGC
AGND
V
P
VIF1
VIF-AGC
RC VCO
DIGITAL VCO CONTROL
AFC DETECTOR
VIDEO TRAPS
4.5 to 6.5 MHz
NARROW-BAND FM-PLL
DETECTOR
I
2
C-BUS TRANSCEIVER
VIF-PLL
SINGLE REFERENCE QSS MIXER/
INTERCARRIER MIXER AND
AM-DEMODULATOR
SIF-AGC
SUPPLY
1
2
14 16
19
15
21
17
8
6
5
4
12
7 11
10
1820
23
24
OUTPUT
PORTS
MAD
AUDIO PROCESSING
AND SWITCHES
9
TUNER AGC
C
AGC neg
3
22
crystal
and MAD select
TDA9885
n.c.
13
L
L
P
M
F
D
AM
O
ISD
N
GDADS
L
C
S
2P
O1
P
O
CVBS
TOP
VIF2
SIF1
SIF2
DEEM
AFD
REF
VAGC VPLL
filter
TDA9886
(1)
(1) Not connected for TDA9885.
reference
or
TDA9885
TDA9886
1
2
3
4
5
6
7
8
9
10
11
12
VIF1
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
SIF2
SIF1
OP2
AFC
V
P
VPLL
AGND
CVBS
VAGC
(1)
REF
TAGC
n.c.
24
23
22
21
20
19
18
17
16
15
14
13