An up to 35 dBc/Hz Phase Noise Improving Design Methodology for Differential-Ring-Oscillators Applied in Ultra-Low Power Systems

2021 ◽  
Author(s):  
Peter Toth ◽  
Hiroki Ishikuro
Keyword(s):  
Power Systems ◽  
Low Power ◽  
Phase Noise ◽  
Design Methodology ◽  
Ring Oscillators ◽  
Ultra Low Power ◽  
Differential Ring

Design Methodology for Voltage-Overscaled Ultra-Low-Power Systems

2012 ◽  
Vol 59 (12) ◽  
pp. 952-956 ◽  
Author(s):  
Dongsuk Jeon ◽  
Mingoo Seok ◽  
Zhengya Zhang ◽  
David Blaauw ◽  
Dennis Sylvester
Keyword(s):  
Power Systems ◽  
Low Power ◽  
Design Methodology ◽  
Ultra Low Power

scholarly journals A 2.1 GHz, 210 μW, —189 dBc/Hz DCO with Ultra Low Power DCC Scheme

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 805
Author(s):  
Shi Zuo ◽  
Jianzhong Zhao ◽  
Yumei Zhou
Keyword(s):  
Low Power ◽  
Current Efficiency ◽  
Phase Noise ◽  
Duty Cycle ◽  
Semiconductor Manufacturing ◽  
Figure Of Merit ◽  
Room Temperature ◽  
Cmos Process ◽  
Ultra Low Power ◽  
Measured Phase

This article presents a low power digital controlled oscillator (DCO) with an ultra low power duty cycle correction (DCC) scheme. The DCO with the complementary cross-coupled topology uses the controllable tail resistor to improve the tail current efficiency. A robust duty cycle correction (DCC) scheme is introduced to replace self-biased inverters to save power further. The proposed DCO is implemented in a Semiconductor Manufacturing International Corporation (SMIC) 40 nm CMOS process. The measured phase noise at room temperature is −115 dBc/Hz at 1 MHz offset with a dissipation of 210 μμW at an oscillating frequency of 2.12 GHz, and the resulin figure-of-merit is s −189 dBc/Hz.

Design methodology of ultra low-power MPEG4 codec core exploiting voltage scaling techniques

1998 ◽  
Author(s):  
Kimiyoshi Usami ◽  
Mutsunori Igarashi ◽  
Takashi Ishikawa ◽  
Masahiro Kanazawa ◽  
Masafumi Takahashi ◽  
...  
Keyword(s):  
Low Power ◽  
Design Methodology ◽  
Voltage Scaling ◽  
Ultra Low Power

New Low-leakage Flip-flops with Power-gating Scheme for Ultra-low Power Systems

2011 ◽  
Vol 10 (11) ◽  
pp. 2161-2167 ◽  
Author(s):  
Jianping Hu ◽  
Xiaoying Yu ◽  
Jindan Chen
Keyword(s):  
Power Systems ◽  
Low Power ◽  
Power Gating ◽  
Ultra Low Power ◽  
Low Leakage ◽  
Gating Scheme
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