An 11.1nJ-Start-up 16/20MHz Crystal Oscillator with Multi-Path Feedforward Negative Resistance Boosting and Optional Dynamic Pulse Width Injection | IEEE Conference Publication | IEEE Xplore

An 11.1nJ-Start-up 16/20MHz Crystal Oscillator with Multi-Path Feedforward Negative Resistance Boosting and Optional Dynamic Pulse Width Injection


Abstract:

This paper presents a fast start-up crystal oscillator (XO) that reduces both start-up time and energy via an elegantly effective muti-path feedforward |RN| boosting tech...Show More

Abstract:

This paper presents a fast start-up crystal oscillator (XO) that reduces both start-up time and energy via an elegantly effective muti-path feedforward |RN| boosting technique. To further improve start-up speed, yet with a more energy/cost-favorable imprecise on-chip ring oscillator, an optional dynamic pulse width (DPW) injection is also proposed. The proposed fast start-up technique is implemented in 65nm process and works with 20MHz and 16MHz crystals, achieve start-up times of 30μs and 34μs while consuming 11.1nJ and 13.2nJ, respectively. Multiple chips are measured over temperature and supply voltage to verify the robustness of the employed techniques.
Date of Conference: 22-25 March 2020
Date Added to IEEE Xplore: 23 April 2020
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Conference Location: Boston, MA, USA

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