(25) PhaseLocked Loop Design Articles

02012019, 09:30 PM
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(25) PhaseLocked Loop Design Articles
An extract from PhaseLocked Loop Design Articles, Mototola, AR254/D
Analyze, don't estimate, phaselockloop performance of type2, thirdorder systems a small programmable calculator, the HP25, easily and exactly determines the complete loop transfer function in 48 steps. Optimize phaselock loops to meet your needsor determine why you can't This article will show you how to optimize … a type2, thirdorder PLL system with a 48step program for an HP25 programmable calculator … to your requirements. Suppress phaselockloop sidebands without introducing instability The first two parts of this series showed how to analyze and then optimize type2, thirdorder PLL systems and provided simple calculator programs for an HP25 to do the otherwise tedious computations. This article takes you a step further and shows how to suppress sidebands, especially undesired when the PLL is used in frequencysynthesis systems. Programmable calculator computes PLL noise, stability 29c BEST! SlideRule 

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