LM1391N ,LM1391 Phase-Locked LoopLM1391Phase-LockedLoopFebruary1995LM1391Phase-LockedLoopGeneralDescriptionYOutput transistor with l ..
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LM1391N
LM1391 Phase-Locked Loop
TL/H/7889
LM1391
Phase-Locked
Loop
February 1995
LM1391 Phase-Locked Loop
General Description
The LM1391 integrated circuithas been designed primarily
foruseinthe horizontal sectionofTV receivers,but may
findusein otherlow frequency signal processing applica-
tions.It includesa stable VCO, linear pulse phase detector,
and variable duty cycle output driver.
Features Internal active regulatorfor improved supply rejection Uncommitted collectorof output transistor Output transistor with low saturation and high voltage
swing APCofthe oscillator witha synchronizing signalDC controlled output duty cycle g300Hz typical pull-in Linear balanced phase detector Low thermal frequency drift Small static phase error AdjustableDC loop gain
Schematic Diagram
TL/H/7889–1
(*)Pin4Base ofQ16 (LM1391)foruse with(a)flyback pulse
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
