Low distortion sine wave generator with simple harmonics cancellation circuit and filter for analog device testing

IEICE Electronics Express

article

Shogo Katayama¹  Takayuki Nakatani¹  Daisuke Iimori¹  Misaki Takagi¹  Yujie Zhao¹  Anna Kuwana¹  Keno Sato²  Takashi Ishida²  Toshiyuki Okamoto²  Tamotsu Ichikawa²  Kentaroh Katoh¹  Kazumi Hatayama¹  Haruo Kobayashi¹ 

[1] Division of Electronics and Informatics, Gunma University;ROHM Semiconductor

关键词: sine signal generator;    low distortion;    analog device testing;    ATE;    analog filter;   

DOI  :  10.1587/elex.19.20220470

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

This paper proposes a low-distortion sine wave generator using logic circuits and relatively simple analog filter for analog device testing. Our proposed circuit cancels 3rd-order harmonic distortion (HD3) and 5th-order harmonic distortion (HD5) by summing multiple rectangular waveforms of fundamental and higher frequencies. These rectangular waves are generated by appropriately dividing the rectangular wave from a digital automatic test equipment (ATE). The other higher order odd harmonics are removed by the following simple analog low-pass filter (LPF). We have implemented its prototype whose measurement results show the generation of a sine wave with harmonics of less than -95dBc.

【 授权许可】

CC BY