Filter
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5. TERMINAL FUNCTION, DESCRIPTION AND BLOCK DIAGRAM OF
MAIN IC
42
Mode SW
Separate / Composite SW,
ACC amp., Sub color control
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
3.58 / 4.43
PAL / NTSC
Sync. sepa.
V. filter
H. sync det.
H / V count
Clamp
fsc
trap
Separate / composite SW
321H VCO
AFC wave
form det.
Delay
Contrast
control
HD, VD, blanking pulse,
killer output
Y, R-Y, B-Y output
L P F
R-Y, B-Y
demodulation
APC killer wave form det.
IDENT D det.
PAL / NTSC
matrix
Tint control
Color control
RGB output
3.58MHz / 4.43MHz
VCXO. PAL SW
Filter
fH Adj.
fsc BPF
Y, R-Y, B-Y input clamp
BGR
Clamp pulse
1M
Ω
0.22
µ
F1.8 K
Ω
18pF
4.43MHz
3.58MHz
18
pF
0.47
µ
F
6.8K
Ω
4700pF0.22
µ
F
1M
Ω
1
µ
F
+
+
22
µ
F
0.1
µ
F
+
Separate
/ color
1000pF
Separate / composite SW
Vcc
20k
Ω
0.22
µ
F
20k
Ω
Vcc
Vcc
0.1
µ
F
Contrast
control
0.1
µ
F
Sub color
control
+
4.7
µ
F
100
Ω
180k
Ω
1500pF
43k
Ω
CVBS
2.2k
Ω
220pF
820pF
500pF
330
Ω
0.015
µ
F
4.7
µ
F
+
8.2k
Ω
2.7k
Ω
50 / 60
0.1
µ
F
22
µ
F
Killer det. BLK HD VD Y R-Y B-Y
Vcc
Vcc
0.22
µ
F
0.22
µ
F
0.22
µ
F
0.1
µ
F
Color control
Tint control
20k
Ω
0.1
µ
F
22
µ
F
+
R-Y B-Y
20k
Ω
+
1.8 K
Ω
+
1
0.1
µ
F
Fig. 6-5 QY01
mm
mm
mPC1832GT internal block diagram