21
Model No: CT-21FGS1
Version 1.0
VARIOUS PARAMETERS OF INTEGRATED CIRCUIT
A: Pin functions of N201( TB1238AN )
Pin
Symbol
Function Dynamic
state
(v)
1
DE-EMP
Audio deemphasis capacitor connect pin
4.9
2
AUDIO OUT
Audio signal output
3.4
3
IF VCC
+9V supply input for IF amplify circuit
9
4
AFT OUT
AFT voltage output
1.7
5
IF GND
Ground for IF amplifiter circuit
0
6
IF IN
IF signal input
0
7
IF IN
IF signal input
1.4
8
RF AGC
RF amplifier AGC control voltage output
5.6
9
IF AGC
IF amplifier AGC filter
4.4
10 APC
FILTER
APC
filtering
1.8
11
4.43MHZXTA
4.43MHZ crystal oscillating
2.2
12
Y/C GND
Ground (Y/C signal processor)
0
13 YS/YM
Y-switch signal input
0
14
EXT R IN
Character R signal input
0.9
15
EXT G IN
Character G signal input
0.9
16
EXT B IN
Character B signal input
0.9
17
RGB VCC
Supply input(RGB)
9
18
R OUT
R output
2.4
19
G OUT
G output
2.4
20
B OUT
B output
2.5
21
ABCL
Automatic brightness, contrast control
5.4
22
V RAMP
Vertical Ramp generator capacitor connect pin
4.4
23
V NFB
V NFB input
5
24
V OUT
Vertical pulse signal output
1
25
V AGC
V AGC filter capacitor connect pin
0.3
26 SCL
(IIC)clock
line
3.8
27 SDA
(IIC)data
line
3.9
28
H VCC
Horizontal deflection supply input (+9V)
9.6
29
SID/CW OUT
SECAM identification/CW signal output
3.8
30
FBP IN
Horizontal flyback pulse input
4.8
31
SYNC OUT
SYNC pulse output
4.8
32
H OUT
Horizontal excitation output
2
33
DEF GND
Ground (detection circuit)
0
34
FBP IN
Sandcastle pulse output
1.4
35
VIDEO OUT
Video signal output
3
36
DIG. VD
Digital circuit supply
5.3
37
S R-Y IN
SECAM R-Y signal input
2.7
38
S B-Y IN
SECAM B-Y signal input
2.6
39
Y IN
Luminance signal input
1.1
40
H AFC
Connecting RC network for horizontal AFC filter
6.8
41
EXT.VIDEO/Y IN External video/luminance signal input
1.6
42 DIG.GND
Digital
circuit
ground
0
43
TV.VIDEO IN
TV. video signal input
3.2
All manuals and user guides at all-guides.com
all-guides.com
