UM
A 3.6-mW 6-GHz current-reuse VCO-buffer with improved load drivability in 65-nm CMOS
Tawfiq Amin1; Pui‐In Mak1; Rui P. Martins1,2
2015
Source PublicationInternational Journal of Circuit Theory and Applications
ISSN0098-9886
Volume43Issue:1Pages:133-138
Abstract

A new current-reuse voltage-controlled oscillator (VCO)-buffer with enhanced load drivability is proposed. It incorporates a PMOS-based source follower stacked atop a NMOS-based LC VCO to share the bias current, while preventing the voltage stress at any oscillation node from exceeding the 1.2-V technology voltage limit. Also, ac-coupling networks are avoided between the VCO and buffer, improving the Q of the LC tank while minimizing parasitics. With internal buffering, the VCO can directly drive up a 50-Ω load for testing, or to withstand a large capacitive load in on-chip local oscillator distribution, particularly suitable for multi-band MIMO WLAN radios. The fabricated VCO-buffer in 65-nm CMOS measures 13.8% tuning range from 5.64 to 6.4 GHz, consumes 3.6 mW at 1.2 V and exhibits -108.84 dBc/Hz phase noise at 1-MHz offset.

DOIhttp://doi.org/10.1002/cta.1933
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000348870500010
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被引频次[WOS]:4   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题University of Macau
Corresponding AuthorPui‐In Mak
Affiliation1.University of Macau The State‐Key Laboratory of Analog and Mixed‐Signal VLSI and FST‐ECE Macao China
2.TU of Lisbon Instituto Superior Técnico Portugal
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
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Tawfiq Amin,Pui‐In Mak,Rui P. Martins. A 3.6-mW 6-GHz current-reuse VCO-buffer with improved load drivability in 65-nm CMOS[J]. International Journal of Circuit Theory and Applications,2015,43(1):133-138.
APA Tawfiq Amin,Pui‐In Mak,&Rui P. Martins.(2015).A 3.6-mW 6-GHz current-reuse VCO-buffer with improved load drivability in 65-nm CMOS.International Journal of Circuit Theory and Applications,43(1),133-138.
MLA Tawfiq Amin,et al."A 3.6-mW 6-GHz current-reuse VCO-buffer with improved load drivability in 65-nm CMOS".International Journal of Circuit Theory and Applications 43.1(2015):133-138.
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