| Status | 已發表Published |
| 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
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| 2017 | |
| Conference Name | 2017 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) |
| Pages | 2791-2794 |
| Publication Place | 345 E 47TH ST, NEW YORK, NY 10017 USA |
| Publisher | IEEE |
| Abstract | For 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. |
| Keyword | CMOS crystal oscillator fast startup low-voltage low-power ultra-low-power |
| URL | View the original |
| Indexed By | CPCI |
| Language | 英語English |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Electrical & Electronic |
| WOS ID | WOS:000439261800211 |
| The Source to Article | WOS |
| Fulltext Access | |
| Citation statistics | |
| Document Type | Conference paper |
| Collection | University 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. |
| APA | Lei, Ka-Meng., Mak, Pui-In., Martins, R. P.., & IEEE (2017). A 0.4V 4.8 mu W 16MHz CMOS Crystal Oscillator Achieving 74-Fold Startup-Time Reduction Using Momentary Detuning. , 2791-2794. |
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