<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In this paper, an area and power efficient current mode frequency synthesizer for system-on-chip (SoC) is proposed. A current-mode transformer loop filter suitable for low supply voltage is implemented to remove the need of a large capacitor in the loop filter, and a current controlled oscillator with additional voltage based frequency tuning mechanism is designed with an active inductor. The proposed design is further integrated with a fully programmable frequency divider to maintain a good balance among output frequency operating range, power consumption as well as silicon area. A test chip is implemented in a standard 0.13 <italic>µ</italic>m CMOS technology, measurement result demonstrates that the proposed design has a working range from 916 MHz to 1.1 <italic>l</italic> GHz and occupies a silicon area of 0.25 mm<sup>2</sup> while consuming 8.4 mW from a 1.2 V supply.</p></abstract>

In this paper, an area and power efficient current mode frequency synthesizer for system-on-chip (SoC) is proposed. A current-mode transformer loop filter suitable for low supply voltage is implemented to remove the need of a large capacitor in the loop filter, and a current controlled oscillator with additional voltage based frequency tuning mechanism is designed with an active inductor. The proposed design is further integrated with a fully programmable frequency divider to maintain a good balance among output frequency operating range, power consumption as well as silicon area. A test chip is implemented in a standard 0.13 µm CMOS technology, measurement result demonstrates that the proposed design has a working range from 916 MHz to 1.1 l GHz and occupies a silicon area of 0.25 mm2 while consuming 8.4 mW from a 1.2 V supply.

Design of area-efficient GHz range current mode frequency synthesizer using standard CMOS technology

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

In this paper, an area and power efficient current mode frequency synthesizer for system-on-chip (SoC) is proposed. A current-mode transformer loop filter...

Design of area-efficient GHz range current mode frequency synthesizer using standard CMOS technology

Published Online: Oct 21, 2019

Page range: 323 - 328

Received: Jun 06, 2019

DOI: https://doi.org/10.2478/jee-2019-0063

Keywords
frequency-locked loop, CMOS, integrated circuit, active inductor

© 2019 Dan-Dan Zheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Design of area-efficient GHz range current mode frequency synthesizer using standard CMOS technology

Published Online: Oct 21, 2019

Page range: 323 - 328

Received: Jun 06, 2019

DOI: https://doi.org/10.2478/jee-2019-0063

Keywordsfrequency-locked loop, CMOS, integrated circuit, active inductor

© 2019 Dan-Dan Zheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
frequency-locked loop, CMOS, integrated circuit, active inductor