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Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 45
TE3.2E CA
9.
9.4.3
Diagram A2, STV224X (IC I300)
Figure 9-3 Internal block diagram and pin configuration
S TV 2248H
APR
BCL/SAF
RGB
CONTRAST
BRIGHT.
DRIVE
CUTOGG
BLANKING
LUMA DL
PEAKING
& CORING
ACC & ACC
OVERLOAD
BANDPASS
FILTER
S
o
und
S
u
bc
ar
rier
W/B SPOT
INVERTER
PLL Reference
Carrier
XTAL
3
/BT
U
N
ROSD
FBOSD/HC
GOSD
BOSD
BCL/SAF
I
CA TH
ROUT
GOUT
BOUT
VERT
HOUT
3
LFB
/S
S
C
SL
PF
X
1
/V
AM
P
/CHROUT
CL
P
F
XT
AL
1
XTAL
2
A
M
/F
M
O
U
T
/S
C
E
X
T
A
UDIOIN
A
U
DIOOU
T
BLACK
STRETCH
CHROMA
TRAP
FILTER
TUNING
BELL
TUNING
SAT./CONT
MATRIX
YUV
SWITCH
DEEMP.
FM
M
o
n
o
AM
Mono
49
Mute
S OU ND BP
FM DEMOD
AGC
AGC
TUNER AGC
PLL
AFC
HORIZONTAL
2nd LOOP
HORIZONTAL
1st LOOP
AUTO IDENT.
KILLER
PAL/SECAM/NTSC
DEMODULATOR
VERTICAL
SCANNING
SYNC.
SEP
CHROMA
DL
VAMP DC
CONTROL
I²C BUS
DECODER
AUDIO
REF
4
V
RE
F
SC
L
SD
A
52
51
53
V
CCD
54
GNDD
V
CCIF
10
GND
IF
12
45
V
CC1
43
GND1
V
CC2
19
GND2
17
56
FM
C
A
P
23
CHR
22
Y/
CV
BSI
N3
20
C
VBS
IN
2
18
C
VBS
IN
1
44
C
VBSO
U
T
2
13
IN
T
C
VBSO
U
T
29
NT
BC
/C
V
BSO
UT
1
15
PI
F
L
C
1
16
PI
F
L
C
2
7
PIFIN2
6
PIFIN1
HALF
CONTRAST
VOLUME
21
BS
28
F
BEXT
27
R
EXT
/C
r
26
GE
X
T
/Y
25
BEXT
/Cb
IF
P
L
L
9
1
SIFIN1
2
SIFIN2
5
AGCPIFCAP
8
TUNERAGCOUT
3
AGCSIFCAP
RGB
TO YUV
LIMITER
I
CATH
SENSE
AVL
37
36
35
34
24
APR
46
33
32
31
30
47
48
50
Mute
42
41
40
39
38
11
14
55
BELL
FILTER
RGB
SWITCH
G_16010_024.eps
130206
Pin Configuration / Connection Diagrams
Block Diagram
SIFIN1
SIFIN2
AGCSIFCAP
V
REFIF
AGCPIFCAP
PIFIN1
PIFIN2
TUNE RAGCOUT
IFPLL
GND
IF
AM/FMOUT/SC
V
CCIF
INTCVB SOUT
EXTAU DIOIN
PIFLC1
PIFLC2
V
CC2
CVBSIN1
GN D2
CVBSIN2
BS
Y/CVBSIN3
CHR
APR
BE XT/Cb
GEXT/Y
REXT/Cr
FBE XT
FMCAP
AUDIOOUT
GNDD
V
CCD
SDA
SCL
SLP F
LFB /SSC
HOUT
VERT
BCL/SAF
V
CC1
CVBSOUT2
GND1
X1/VAMP/CHROUT
CLPF
XTAL1
XTAL2
XTAL3/BTUN
ROSD
GOSD
BOSD
I
CATH
ROUT
GOUT
BOUT
NTBC/CVBSOUT1
FBOSD/HC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29