A Fast Switching Full-CMOS PHS Frequency Synthesizer with an Auxiliary Coarse Tuning Method

Autor:	JuneYoung Park, SukHwan Jang, Dojin Park, Ji-Hoon Jung, JinKyung Kim, Sung-Kyu Jung, Kang-Yoon Lee, YoungGun Pu
Rok vydání:	2006
Předmět:	Frequency synthesizer Engineering Bandwidth management Offset (computer science) business.industry Electrical engineering Chip CMOS Phase noise Hardware_INTEGRATEDCIRCUITS Charge pump Electronic engineering business Voltage
Zdroj:	2006 Proceedings of the 32nd European Solid-State Circuits Conference.
DOI:	10.1109/esscir.2006.307539
Popis:	This paper presents a fast switching CMOS frequency synthesizer with a new coarse tuning method for PHS applications. To achieve the fast lock-time and the low phase noise performance, an efficient bandwidth control scheme is proposed. Charge pump up/down current mismatches are compensated with the current mismatch compensation block. Also, the proposed coarse tuning method selects the optimal tuning capacitances of the LC-VCO to optimize the phase noise and the lock-time. The measured lock-time is about 20 mus and the phase noise is - 121dBc/radicHz at 600kHz offset. This chip is fabricated with 0.25mum CMOS technology, and the die area is 0.7mm times 2.1mm. The power consumption is 54mW at 2.7V supply voltage
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::62a8a894c9ea37df5776f090af7c5bd4 https://doi.org/10.1109/esscir.2006.307539 Zobrazit plný text záznamu