Title :
An Edge Missing Compensator for Fast Settling Wide Locking Range Phase-Locked Loops
Author :
Lin, Chi-Sheng ; Chien, Ting-Hsu ; Wey, Chin-Long ; Huang, Chun-Ming ; Juang, Ying-Zong
Author_Institution :
Nat. Chip Implementation Center, Nat. Appl. Res. Labs., Hsinchu, Taiwan
Abstract :
An edge missing compensator (EMC) is proposed to approach the function of an ideal PD with plusmn2 N-1 times 2pi linear range with N-bit EMC. A PLL implemented with a 9-bit EMC achieves 320 MHz frequency hopping within 10 mus logarithmically which is about 2.4 times faster than the conventional design. The reference spur of the PLL is -48.7 dBc and the phase noise is -88.31dBc/Hz at 10 kHz offset with KVCO = - 2 GHz/V.
Keywords :
electromagnetic compatibility; phase locked loops; phase noise; EMC; edge missing compensator; electromagnetic compatibility; fast settling wide locking range phase-locked loops; frequency hopping; phase noise; time 10 mus; Automata; Electromagnetic compatibility; Frequency conversion; Laboratories; Phase detection; Phase frequency detector; Phase locked loops; Phase noise; Transient response; Voltage-controlled oscillators; Edge missing comparator; edge missing detector; extended linear region; phase-locked loop (PLL);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2031209
