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PDF LM1391 Data sheet ( Hoja de datos )
| Número de pieza | LM1391 | |
| Descripción | LM1391 Phase-Locked Loop | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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February 1995
LM1391 Phase-Locked Loop
General Description
The LM1391 integrated circuit has been designed primarily
for use in the horizontal section of TV receivers but may
find use in other low frequency signal processing applica-
tions It includes a stable VCO linear pulse phase detector
and variable duty cycle output driver
Features
Y Internal active regulator for improved supply rejection
Y Uncommitted collector of output transistor
Y Output transistor with low saturation and high voltage
swing
Y APC of the oscillator with a synchronizing signal
Y DC controlled output duty cycle
Y g300 Hz typical pull-in
Y Linear balanced phase detector
Y Low thermal frequency drift
Y Small static phase error
Y Adjustable DC loop gain
Schematic Diagram
( ) Pin 4 Base of Q16 (LM1391) for use with (a) flyback pulse
TL H 7889 – 1
C1995 National Semiconductor Corporation TL H 7889
RRD-B30M115 Printed in U S A
1 page  
Typical Applications (Continued)
FIGURE 3 Variable Duty Cycle Oscillator
(See Applications Information)
TL H 7889 – 7
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LM1391.PDF ] | |
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