A 68/36ppm/<sup>○</sup>C Tc 32.768Khz-To-1Mhz Rc-Based Oscillator With 72/6Pj Start-Up Energy

Gomez, Hector; Arenas, Julian; Rojas, Camilo; Reyes, David; Mantilla, Alex; Roa, Elkim

doi:10.1109/cicc.2019.8780374

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These clock sources might cover different frequency ranges to encompass majority of applications. High frequency I/Os might operate up to 25 GHz, 1 while legacy communication protocols and wake‐up timer applications must work in the kHz range for low energy consumption 2 …”

Section: Introductionmentioning

confidence: 99%

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Arenas

Moya

Roa

2023

Circuit Theory & Apps

Self Cite

View full text Add to dashboard Cite

Multi‐protocol applications and complex systems‐on‐chip demand several clock sources to fulfill all data‐rate requirements. Among the different types of clock sources, LC oscillators dominate the high data‐rate communication standards where frequency stability is a major constraint. In contrast, ring oscillators are preferred for legacy support applications due to their wider tuning range and where stability is not a constraint. Since stability enhancement techniques have been already implemented to ring oscillators, increasing the tuning range of a single ring clock reference might fulfill a broad margin of data rates. This paper presents an analysis and a design approach of wideband digital‐based oscillators based on secondary feedforward paths to support most of the data‐rate requirements inside systems‐on‐chips. Here, we present the inclusion of these auxiliary loops as a tuning range enhancement technique to reduce the total number of required clock references. The presented analysis comprises piece‐wise functions able to accurately predict an FDRO oscillation frequency. Using the piece‐wise model, we present a 15,000 12‐track standard‐cell scalable feedforward oscillator. Auxiliary feedforward inverters allow a maximum 1.5 GHz frequency and a 3 tuning range enhancement while enabling a 100 kHz minimum oscillation frequency. The proposed oscillator occupies an area of 0.05 mm2 in a 180 nm CMOS pure digital node and achieves a 41 ps@1.25 GHz RMS jitter of and a −121 dB FOM.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Arenas

Moya

Roa

2023

Circuit Theory & Apps

Self Cite

View full text Add to dashboard Cite

show abstract

Design of A Low Power and Frequency-Adjustable RC Oscillator for IoT Application

Mai,

2024

2024 4th International Conference on Electronics, Circuits and Information Engineering (ECIE)

View full text Add to dashboard Cite

A 0.98 pJ/Cycle 3.7 ppm Long-Term Stability Frequency-Locked Oscillator with Switched-Capacitor and Switched-Resistor Techniques

Hsieh

Cheng

2023

2023 IEEE International Symposium on Circuits and Systems (ISCAS)

View full text Add to dashboard Cite

A 68/36ppm/^○C Tc 32.768Khz-To-1Mhz Rc-Based Oscillator With 72/6Pj Start-Up Energy

Cited by 3 publications

References 5 publications

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Design of A Low Power and Frequency-Adjustable RC Oscillator for IoT Application

A 0.98 pJ/Cycle 3.7 ppm Long-Term Stability Frequency-Locked Oscillator with Switched-Capacitor and Switched-Resistor Techniques

Contact Info

Product

Resources

About

A 68/36ppm/○C Tc 32.768Khz-To-1Mhz Rc-Based Oscillator With 72/6Pj Start-Up Energy

Cited by 3 publications

References 5 publications

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Analysis and design approach of wideband digital‐based feedforward ring oscillators

Design of A Low Power and Frequency-Adjustable RC Oscillator for IoT Application

A 0.98 pJ/Cycle 3.7 ppm Long-Term Stability Frequency-Locked Oscillator with Switched-Capacitor and Switched-Resistor Techniques

Contact Info

Product

Resources

About

A 68/36ppm/^○C Tc 32.768Khz-To-1Mhz Rc-Based Oscillator With 72/6Pj Start-Up Energy