Read Sharp 37GT-27H (serv.man9) Service Manual online
17
37GT-27H
STV2236 (IC 801)
FEATURES
■
I
2
C BUS CONTROL.
■
PIF CIRCUIT WITH PLL DEMODULATION
(Positive and Negative Video).
(Positive and Negative Video).
■
SIF CIRCUIT WITH QSS STRUCTURE, FM
DEMODULATION AND AM DEMODULATION
FOR FRANCE.
DEMODULATION AND AM DEMODULATION
FOR FRANCE.
■
INTERCARRIER CAPABILITY.
■
BUILT IN SOUND BANDPASS.
■
SOUND SUB CARRIERS OUTPUT FOR
STEREO CHASSIS (FM, Nicam).
STEREO CHASSIS (FM, Nicam).
■
AUDIO SWITCH AND VOLUME CONTROL
(Mono Chassis).
(Mono Chassis).
■
INTEGRATED CHROMA FILTERS AND LUMA
DELAY LINE.
DELAY LINE.
■
INTEGRATED CHROMA DELAY LINE.
■
VIDEO SWITCH (3 CVBS IN, 1 or 2 CVBS
OUT).
OUT).
■
SVHS SWITCH
(Y combined with CVBS3 input).
(Y combined with CVBS3 input).
■
OSD RGB INPUTS.
■
EXTERNAL RGB/YUV INPUTS or YUV
INTERFACE.
INTERFACE.
■
PAL / SECAM / NTSC CHROMA
DEMODULATORS.
DEMODULATORS.
■
AUTO FLESH CONTROL CAPABILITY IN
NTSC.
NTSC.
■
SOUTH AMERICA CAPABILITY (PALM/PALN/
NTSC).
NTSC).
■
CHROMA SUBCARRIER OUTPUT.
■
BLACK STRETCH CIRCUIT.
■
PEAKING CIRCUIT.
■
AUTOMATIC CUT-OFF CURRENT LOOP.
■
MANUAL CUT-OFF POSSIBLE FOR LOW
COST APPLICATIONS.
COST APPLICATIONS.
■
TWO PLLs HORIZONTAL DEFLECTION.
■
VERTICAL COUNT DOWN.
■
HALF CONTRAST (optional).
■
APR (Automatic RGB peak regulation)
FUNCTION (optional).
FUNCTION (optional).
■
SAW FILTER SWITCH CONTROL (optional).
■
VERY FEW EXTERNAL COMPONENTS.
DESCRIPTION
The STV223XD/223X/224X are fully bus con-
trolled ICs for TV including PIF, SIF, luma, chroma
and deflection processing. Used with a vertical
frame booster (TDA1771 or TDA8174 for 90°
chassis, STV9306 for 110° chassis), they allow
the design of multistandard (BGDKIMNLL, PAL/
SECAM/NTSC) sets with very few external com-
ponents and no manual adjustments.
trolled ICs for TV including PIF, SIF, luma, chroma
and deflection processing. Used with a vertical
frame booster (TDA1771 or TDA8174 for 90°
chassis, STV9306 for 110° chassis), they allow
the design of multistandard (BGDKIMNLL, PAL/
SECAM/NTSC) sets with very few external com-
ponents and no manual adjustments.
TQFP64 (14 x 14 x 1.4 mm)
(Full Thin Plastic Quad Flat Pack)
ORDER CODE: STV223XD
SHRINK56
(Plastic Package)
ORDER CODE: STV223X/4X/8X
ICs ADDITIONAL INFORMATION
SDA 5552 (IC 1001)
18
37GT-27H
STV 22XX FAMILY CHARACTERISTICS
STV 22XX IC VERSIONS
Package
Application
PAL/SECAM/NTSC
QSS/INTERCARRIER
AM
QSS/INTERCARRIER
AM
PAL/NTSC
QSS/INTERCARRIER
QSS/INTERCARRIER
PAL/NTSC
INTERCARRIER
INTERCARRIER
SHRINK56
STV2238/48
STV2237/47
STV2236/46/86
TQFP64
STV2238D
STV2237D
STV2236D
IC Version
SHRINK56
TQFP64
Function
2236
2237
2238
2246
2247
2248
2286
2236D
2237D
2238D
PAL/SECAM/NTSC
X
X
X
PAL/NTSC
X
X
X
X
X
X
X
QSS/INTERCARRIER
X
X
X
X
X
X
INTERCARRIER ONLY
X
X
X
X
AM
X
X
X
1 CVBS OUTPUT
X
X
X
X
X
X
X
2 CVBS OUTPUTS
X
X
X
1 EXT RGB INPUT
X
X
X
X
OSD RGB INPUTS &
RGBEXT/YUVEXT
INPUTS
RGBEXT/YUVEXT
INPUTS
X
X
X
X
X
X
YUV INTERFACE
X
X
X
X
APR
X
X
X
X
X
X
X
HALF CONTRAST
X
X
X
SAW FILTER CONTROL
X
X
X
STV2236 (IC 801)
19
37GT-27H
Pin N°
Symbol
Description
STV224X/8X
STV223X
STV223XD
SDIP56
SDIP56
TQFP64
1
1
8
SIFIN1
SIF Input
2
2
9
SIFIN2
SIF Input
3
3
10
AGCSIFCAP
AGC SIF Capacitor
4
4
11
V
REF
IF
Voltage Reference Filtering
5
5
12
AGCPIFCAP
AGC PIF Capacitor
6
6
13
PIFIN1
PIF Input
7
7
14
PIFIN2
PIF Input
8
8
16
TUNERAGCOUT
AGC Tuner Output
9
9
17
IFPLL
IF PLL Filter
10
10
18
GND IF
IF Ground
11
11
19
AM/FMOUT/SC
AM/FM Mono Sound or Stereo Carriers Output
12
12
20
V
CC
IF
5 V IF Supply
13
13
21
INTCVBSOUT
Internal CVBS Output
14
14
22
EXTAUDIOIN
External Audio Input
15
15
23
PIFLC1
LC Input
16
16
24
PIFLC2
LC Input
17
17
25
V
CC
2
Video/Luma Supply Voltage (8 V)
18
18
26
CVBSIN1
Internal Video Input
19
19
27
GND2
Video/Luma Ground
20
20
28
CVBSIN2
External Video Input
21
21
29
BS
Black Stretch Capacitor
22
22
34
Y/CVBSIN3
Y(SVHS) or CVBS3 External Input
23
23
35
CHR
Chroma (SVHS) Input
-
24
37
UIN
B-Y Input (Note 1)
-
25
38
VIN
R-Y Input (Note 1)
-
26
39
YIN
Y Input (Note 1)
-
27
40
YOUT
Y Output (Note 1)
-
28
41
VOUT
R-Y Output (Note 1)
-
29
42
UOUT
B-Y Output (Note 1)
30
30
43
BOUT
Blue Output
31
31
44
GOUT
Green Output
32
32
45
ROUT
Red Output
33
33
46
I
CATH
Cathode Current Measurement Input
34
34
47
BOSD
OSD Blue Input
35
35
48
GOSD
OSD Green Input
36
36
49
ROSD
OSD Red Input
37
37
50
FBOSD
OSD Fast Blanking
38
38
52
XTAL3/BTUN
3.5X MHz Crystal or Cloche Filter Tuning
Capacitor
Capacitor
39
39
53
XTAL2
3.5X MHz Crystal
40
40
54
XTAL1
4.43/3.5X MHz Crystal
41
41
55
CLPF
Chroma PLL Filter
42
42
56
X1/VAMP/CHROUT
XTAL1 Control Pin, Vertical Amplitude DAC
Output and Chroma Reference Signal Output.
Output and Chroma Reference Signal Output.
43
43
57
GND1
Chroma/Scanning Ground
STV2236 (IC 801)
20
37GT-27H
Note:
1. Input/Output not available in STV2236 and STV2236D versions.
-
44
58
CVBSOUT1
Main Video Switch Output
45
45
59
V
CC
1
Chroma/Scanning Power Supply (8 V)
46
46
61
BCL/SAF
Beam Current Limiter Control Voltage and
Safety Input (XRAY)
Safety Input (XRAY)
47
47
62
VERT
Vertical Output Pulse
48
48
63
HOUT
Horizontal Output Pulse
49
49
64
LFB/SSC
Line Flyback Input and Super-sandcastle Out-
put
put
50
50
1
SLPF
Scanning PLL Filter
51
51
2
SCL
I
2
C Bus Clock Input
52
52
3
SDA
I
2
C Bus Data Input
53
53
4
V
CC
D
Digital Supply Voltage (5 V)
54
54
5
GND D
Digital Ground
55
55
6
AUDIOOUT
Main Audio Output
56
56
7
FMCAP
FM Demodulation Capacitor
-
-
15
SAW
Filter Switch Control
25
-
30
BEXT/UEXT
External Blue Input or external U input
26
-
31
GEXT/YEXT
External Green Input or external Y input
27
-
32
REXT/VEXT
External Red Input or external V input
28
-
33
FBEXT
External Fast Blanking Input
24
-
36
APR
Automatic RGB Peak Regulation
-
-
51
HALFCTR
Half Contrast Input
44
-
60
CVBSOUT2
Second Video Switch Output
Pin N°
Symbol
Description
STV224X/8X
STV223X
STV223XD
SDIP56
SDIP56
TQFP64
STV2236 (IC 801)
PIN CONNECTIONS STV223XD (TQFP64)
