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N251 TN1275AZ
Reference resistance (K
Ω
)
Reference voltage (V)
Pin Function
With
signal
Without
signal
Forward
(black
grounding)
Reverse (red
grounding)
1 Y
output
2.96
7.8
11
2 Delay
switch
4.04
7.2 9.5
3 R-Y
output
2.43
7.8
11
4 R-Y
output
0.31
7.0
8
5 B-Y
output
2.44
7.8
11
6
B-Y blanking control
0.31
7.0
8
7 Recognition
filter
4.54
7.8
11
8 Vacant
2.58
7.8 10.5
9 Power
supply
5.06
1.6 1.6
10 Vacant
2.58
7.8
11
11 B-Y
input
0 0
0
12 Frequency
filter
2.86
7.8 9.6
13
S/chrominance low pass
filter
4.34
7.5
11
14 Clock
filter
2.39
7.8
11
15 Y
input
2.77
7.8
11
16 Clock
control
5.09
1.6 1.6
17
Sandcastle impulse input
0.69
6.6 7.5
18 Power
supply
5.09
1.6 1.6
19
4.43 threshold input
1.49
7.5 9.6
20 Ground
0 0
0
21
System recognition switch
1.54
7.6
0
N201 TB1238AN
Reference Voltage(V)
Reference Resistance(K
Ω
)
Pin Function
Without
signal
With
signal
Forward(
Ω
) Backward(
Ω
)
1 Unweighted
5.0
5.0
800
2000
2
Audio signal output
3.5
3.5
750
2000
3
PIF circuit power supply
9.0
9.0
460
600
4 AFT
output
and
auto-adjusting
2.0 2.0 750 600
5
PIF circuit grounding
0
0
0
0
6
IF signal input pin
1.4
1.4
680
2000
7
IF signal input pin
1.2
1.2
680
2000