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بیست و نهمین کنفرانس مهندسی برق ایران
A 1.2GHz wide bandwidth integer-N type-I PLL
نویسندگان :
Javad Tavakoli
1
Hossein Yaghobi
2
Samad Sheikhaei
3
1- دانشگاه تهران
2- دانشگاه تهران
3- دانشگاه تهران
کلمات کلیدی :
type-I PLL, synthesizer, phase noise, delay-line filter, loop bandwidth, phase detector, VCO, loop filter
چکیده :
This paper introduces a wide bandwidth integer-N Type-I PLL. By using a novel Delay-line based filter as loop filter, the bandwidth of the proposed PLL is about 5 times greater than the bandwidth of traditional Type-I PLL. The chosen strategy in widening the PLL bandwidth is to replace the RC loop filter with a 2-tap delay-line based filter which provides a desired magnitude and phase response. Operating with a reference frequency of 10MHz, the proposed PLL provides a loop BW of about 5MHz, and a spur level of -50dBc. The presented PLL exhibits an in-band phase noise of -119 dBc/Hz at 1MHz offset. PLL total power consumption is 2.5mW from the nominal supply of 1.8V.
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بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 43.6.0
