Extension method of tolerance to voltage and temperature variations in an injection-locked PLL

IEICE Electronics Express

Jeonghoon Han²  Akira Matsuzawa¹  Masaya Miyahara¹ 

[1] Department of Physical Electronics, Tokyo Institute of Technology;Department of International Development of Engineering, Tokyo Institute of Technology

关键词: voltage-temperature variations;    tolerance;    RC switch;    ring oscillator;    phase-locked loop;   

DOI  :  10.1587/elex.11.20140127

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)This article presents a method to enhance tolerance to voltage and temperature variations in an injection-locked PLL. The proposed method can enhance the tolerance to voltage and temperature variations by turning on or off a supplementary current source of the oscillator in the injection-locked PLL through the RC switch with a large time constant. This configuration increases the tolerance range to the supply voltage variation by 33.8%, compared to the conventional injection-locked PLL in [5]. The proposed method is verified by the calculation and simulations. They show that the PLL can maintain the stable lock state during the switching of the supplementary current source.

【 授权许可】

Unknown