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NTE1268 Datasheet Preview

NTE1268 Datasheet

Integrated Circuit DC Servo Circuit for VCR

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NTE1268 pdf
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: (TA = +25°C unless otherwise specified)
Supply Voltage (V5–24), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Total Circuit Current
Trapezoidal Reference Voltage
Output Voltage
FF–II
Trapezoidal I
I5–2
V16–24
V23–24
V17–24
23 31 41
0.77 1.0 1.2
mA
V
10.0 10.9 –
2.4 3.0 3.6
V
V
Trapezoidal II
V17–24
11.0 11.9 –
V
S & H–I
V12–24
– 240 500 mV
S & H–II
V12–24
8.0 8.8 –
V
Gate–II
V10–24
9.0 10.0 –
V
Input Sensitivity
MM
Trapeziodal
V22–24
V15–24
3.5 –
4–
– VO–P
– VO–P
Gate
S&H
DET–I
V7–24
Vis(14)
Vis(28)
f = 30Hz, PW = 100µs
400Hz, 1/2 Sampling Sine Wave, td = 1ms
3.5 –
1.5 –
50 –
– VO–P
– VO–P
– mVO–P
DET–II
Vis(2)
50 –
– mVO–P
FG Vis(4) f = 400Hz
100 –
– mVP–P
FF
Vis(25) f = 30Hz, Rectangular Wave
3 – – VO–P



NTE
NTE

NTE1268 Datasheet Preview

NTE1268 Datasheet

Integrated Circuit DC Servo Circuit for VCR

No Preview Available !

NTE1268 pdf
Pin Connection Diagram
Ripple Filter 1
Detector 2 Input 2
Detector Time Constant 3
FG Amp Input 4
VCC 5
FlipFlop Output 6
Gate Input 7
Gate Time Constant 8
Gate Time Constant 9
Motor Speed Signal Output 10
Ripple Filter 11
Motor Phase Signal Output 12
Bypass 13
Timing Signal Input 14
28 Detector 1 Input
27 Detector Time Constant
26 Jumper to Pin22 & Pin25
25 Jumper to Pin22 & Pin26
24 GND Return
23 To Head Switch
22 Jumper to Pin25 & Pin26
21 Multi Time Constant
20 Multi Time Constant
19 GND
18 S & H Signal Source
17 Bypass
16 Resistive Constant
15 Timing Reference Signal
14
15
1.469 (37.32)
Max
.100 (2.54)
1.300 (33.02)
1
28
.250
(6.35)
.540
(13.7)
.122
(3.1)
Min
.600 (15.24)


Part Number NTE1268
Description Integrated Circuit DC Servo Circuit for VCR
Maker NTE
Total Page 2 Pages
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