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Realização em tecnologia monolítica de Arsenieto de Gálio (GaAs MMIC) de amplif...
António L.J. Teixeira; Mário J. N. Lima; J. Nuno Matos; Paulo Monteiro; J. R. Ferreira da RochaNowadays the clock recovery circuits used for frequencies up to 10 Gbit/s use open-loop structures. The band-pass filters used on these structures are implemented with dielectric resonators (DR). This kind of filters introduce spurious modes that degradate the characteristics of the recovered clock signal. So, the clock amplification stage is required not only to provide the desired clock signal levels, but als...
Introdução à Sincronização de Osciladores
J. Nuno Matos; Jorge Perez; J. Carlos NevesThis paper describes, in a concise form, part of the Ph. D. work [1] that concerns with modelation ofsynchronizing systems. To get a better understanding of the Phase Locked Loop with Injection (PLLI) we begin with the description and modelation of a Phase Locked Loop (PLL) and of a Injection Locked Oscillator (ILO). Following this we develop the PLLI model. In a next paper we’ll present a simulated and p...
Sincronização de osciladores
J. Nuno Matos; Jorge Perez; J. Carlos NevesThis paper complete the discription of synchronizing systems, beginning in "Introdução à sincronização de osciladores" [1].It describes, in a concise form, part of the PhD work [2] that concerns with the validity of the obtained model for the Phase Locked Loop with Injection (PLLI) and compares the behaviour of a Phase Locked Loop (PLL) against the same loop with injection. ; ...
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