NTE1268
Integrated Circuit
DC Servo Circuit for VCR
Description:
The NTE1268 is an integrated circuit in a 28–Lead DIP type package designed for DC Servo Control
Circuits in VCR’s.
Absolute Maximum Ratings:
(T
A
= +25°C unless otherwise specified)
Supply Voltage (V
5–24
), V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640mW
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics:
(T
A
= +25°C, V
CC
= 12V unless otherwise specified)
Parameter
Total Circuit Current
Trapezoidal Reference Voltage
Output Voltage
FF–II
Trapezoidal I
Trapezoidal II
S & H–I
S & H–II
Gate–II
Input Sensitivity
MM
Trapeziodal
Gate
S&H
DET–I
DET–II
FG
FF
Symbol
I
5–2
V
16–24
V
23–24
V
17–24
V
17–24
V
12–24
V
12–24
V
10–24
V
22–24
V
15–24
V
7–24
V
is(14)
V
is(28)
V
is(2)
V
is(4)
V
is(25)
f = 400Hz
f = 30Hz, Rectangular Wave
f = 30Hz, PW = 100µs
400Hz, 1/2 Sampling Sine Wave, t
d
= 1ms
Test Conditions
Min
23
0.77
Typ
31
1.0
Max
41
1.2
–
3.6
–
500
–
–
–
–
–
–
–
–
–
–
Unit
mA
V
V
V
V
mV
V
V
V
O–P
V
O–P
V
O–P
V
O–P
mV
O–P
mV
O–P
mV
P–P
V
O–P
10.0 10.9
2.4
11.0
–
8.0
9.0
3.5
4
3.5
1.5
50
50
100
3
3.0
11.9
240
8.8
10.0
–
–
–
–
–
–
–
–
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