NTE1428 Ver la hoja de datos (PDF) - NTE Electronics
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NTE1428 Datasheet PDF : 2 Pages
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NTE1428
Integrated Circuit
Cylinder Servo Control Circuit for VCR
Description:
The NTE1428 is an integrated circuit designed for VTR’s cylinder servo control.
Features:
D Sample Hold System Speed Control
D Incorporating Recording/Playback Switching Circuit
D Supply Voltage Either 9V or 12V
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V1−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 880mW
Operation ambient temperature, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 to +70°C
Storage temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +150°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Circuit Current
I1
V1−7 = 12V
33 − 65 mA
Sensitivity PG − Amp. In
S(1) VCC = 12V, 30Hz duty 96%
1
−
−
Vo−p
PG + Amp. In
S(2) VCC = 12V, 30Hz duty 4%
1
−
−
Vo−p
Cap PG Amp. In
S(3) VCC = 12V
50 −
− mVo−p
VSS Amp. In
S(4)
2
−
−
Vo−p
REF Amp. In
S(5)
3
−
−
Vo−p
REC/P.B. Switch
S(6)
5−−
V
Ref. Voltage (phase trapezoidal wave)
VREF(1)
2.7 − 3.7 V
High−level output Voltage (Head−SW)
Low−level output Voltage (Head−SW)
VOH(1) VCC = 12V, VI24 = 2Vp−p, 30Hz
9
duty 4%
VOL(2) VI23 = 2Vp−p, 30Hz duty 96%
−
−−
V
− 600 mV
High−level output Voltage (REC CTL Amp)
VOH(2) VCC = 12V
8−−
V
Low−level output Voltage (REC CTL Amp) VOL(2)
−−1
V
High−level output Voltage (S/H1)
VOH(3)
9−−
V
Low−level output Voltage (S/H1)
VOL(3)
− − 600 mV
Voltage Gain (CTL Amp.)
GV
62 − 70 dB
Sensitivity (FG Amp. In)
S(7)
100 −
− mVp−p
Ref. Voltage
(speed system trapezoidal wave)
VREF(2)
2.7 − 3.7 V
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