A current-shaping technique for static MOS current-mode logic prescalers

IEICE Electronics Express

Chengyan Ma¹  Tianchun Ye¹  Taishan Mo¹  Jian Shi¹ 

[1] Institute of Microelectronics of Chinese Academy of Sciences

关键词: current-mode logic;    prescaler;    current-shaping;   

DOI  :  10.1587/elex.10.20120887

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)Cited-By(1)This letter presents a current-shaping technique for static MOS current-mode logic (MCML) prescalers. Simply with two extra current-shaping capacitors the self-oscillating frequecy is increased. A current vector model is also presented to illustrate the principles. The prescaler with the current-shaping technique was fabricated in a 0.18-µm CMOS technology with a reference classic one. The measurement results show that the self-oscillating frequency of the prescaler with current-shaping achieves an improvement of 10%, resulting a 6GHz highest operating frequency while the classic one could only work at 5.3GHz. Consequently, the current-shaping technique improves the maxim divide range of the prescaler with 13.2%.

【 授权许可】

Unknown