UM
A 0.4V 4.8 mu W 16MHz CMOS Crystal Oscillator Achieving 74-Fold Startup-Time Reduction Using Momentary Detuning
Lei, Ka-Meng; Mak, Pui-In; Martins, R. P.; IEEE
2017
Conference Name2017 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
Pages2791-2794
Publication Place345 E 47TH ST, NEW YORK, NY 10017 USA
PublisherIEEE
AbstractFor ultra-low-power radios, the long startup time of the crystal oscillator dominates their on-off latency and limits their power efficiency. This paper describes the design of a 65nm CMOS 16MHz crystal oscillator, featuring a momentary detuning scheme to accelerate the startup transient. Specifically, during the startup phase, the bias current (266 mu A) and loading capacitors (8.5pF each) are enlarged concurrently such that the equivalent negative resistance of the oscillation loop can be momentarily enhanced, resulting in 74-fold reduction of the startup time (37ms -> 0.5ms), while consuming just 53.2nJ at 0.4V. Also, a time-based controller automatically drives the oscillator into the steady state, which entails a smaller bias current (12 mu A) to sustain the oscillation, and smaller loading capacitors (5pF) to recover the proper oscillating frequency. The simulated phase noise exhibits -128.2dBc/Hz at 1kHz offset, resulting in a FoM of 265.5dBc/Hz.
KeywordCMOS crystal oscillator fast startup low-voltage low-power ultra-low-power
URLView the original
Indexed ByCPCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000439261800211
The Source to ArticleWOS
Fulltext Access
Citation statistics
Document TypeConference paper
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Lei, Ka-Meng,Mak, Pui-In,Martins, R. P.,et al. A 0.4V 4.8 mu W 16MHz CMOS Crystal Oscillator Achieving 74-Fold Startup-Time Reduction Using Momentary Detuning[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:2791-2794.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lei, Ka-Meng]'s Articles
[Mak, Pui-In]'s Articles
[Martins, R. P.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lei, Ka-Meng]'s Articles
[Mak, Pui-In]'s Articles
[Martins, R. P.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lei, Ka-Meng]'s Articles
[Mak, Pui-In]'s Articles
[Martins, R. P.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.