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dc.contributor.authorChen, PLen_US
dc.contributor.authorLee, CYen_US
dc.date.accessioned2014-12-08T15:18:01Z-
dc.date.available2014-12-08T15:18:01Z-
dc.date.issued2005-12-01en_US
dc.identifier.issn0916-8508en_US
dc.identifier.urihttp://dx.doi.org/10.1093/ietfec/e88-a.12.3554en_US
dc.identifier.urihttp://hdl.handle.net/11536/13030-
dc.description.abstractThis paper presents a standard cell-based frequency synthesizer with dynamic frequency counting (DFC) for multiplying input reference frequency by N times. The dynamic frequency counting loop uses variable time period to estimate and tune the frequency of digitally-controlled oscillator (DCO) which enhances frequency detection's resolution and loop stability. Two ripple counters serve as frequency estimator. Conventional phase-frequency detector (PFD) thus is replaced with a digital arithmetic comparator to yield a divider-free circuit structure. Additionally, a 15 bits DCO with the least significant bit (LSB) resolution 1.55 ps is designed by using the gate capacitance difference of 2-input NOR gate in fine-tuning stage. A modified incremental data weighted averaging (IDWA) circuit is also designed to achieve improved linearity of DCO by dynamic element matching (DEM) skill. Based on the proposed standard cell-based frequency synthesizer, a test chip is designed and verified on 0.35-mu m complementary metal oxide silicon (CMOS) process, and has a frequency range of (18-214) MHz at 3.3 V with peak-to-peak (P-k-P-k)jitter of less than 70 ps at 192 MHz/3.3 V.en_US
dc.language.isoen_USen_US
dc.subjectfrequency synthesizeren_US
dc.subjectdynamic frequency counting (DFC)en_US
dc.subjectdigitally-controlled varactors (DCV)en_US
dc.subjectdigitally-con trolled oscillator (DCO)en_US
dc.subjectdynamic element matching (DEM)en_US
dc.subjectphase locked loop (PLL)en_US
dc.titleA standard cell-based frequency synthesizer with dynamic frequency countingen_US
dc.typeArticle; Proceedings Paperen_US
dc.identifier.doi10.1093/ietfec/e88-a.12.3554en_US
dc.identifier.journalIEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCESen_US
dc.citation.volumeE88Aen_US
dc.citation.issue12en_US
dc.citation.spage3554en_US
dc.citation.epage3563en_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000234281300037-
Appears in Collections:Conferences Paper