教師資料查詢 | 類別: 期刊論文 | 教師: 楊維斌WEB-BIN YANG (瀏覽個人網頁)

標題:A Programmable Multiple Frequencies Clock Generator with Process and Temperature Compensation Circuit for System on Chip Design
學年111
學期1
出版(發表)日期2022/09/01
作品名稱A Programmable Multiple Frequencies Clock Generator with Process and Temperature Compensation Circuit for System on Chip Design
作品名稱(其他語言)
著者Wei-Bin Yang; Kuo-Ning Chang; Lu-Chun Yeh
單位
出版者
著錄名稱、卷期、頁數IEEE Systems Journal 16(3), p. 4222-4231
摘要This article presents a programmable multiple frequencies clock generator with a process and temperature compensation circuit design. The proposed clock generator can achieve a stable and wide frequency range output for a single input frequency by using digital control codes as well as process and temperature compensation mechanisms. In our approach, the first step is to adjust the duty-cycle of the input clock by using a digitally controlled pulsewidth modulator (DCPWM) to generate an output clock signal with a duty-cycle of 20% to 80%. Second, the various duty-cycle clock outputs of the DCPWM are integrated by the duty-cycle-to-voltage converter to generate analog voltage signals to control the succeeding voltage-controlled ring oscillator (VCO). Through the use of various control voltages, different VCO output frequencies are generated. Finally, by using the process and temperature compensation circuit, the proposed clock generator can provide a stable and wide frequency range. The proposed chip is fabricated in a 180-nm CMOS process and has an output frequency range of 35–138 MHz at a supply voltage of 0.9 V. At 120 MHz, the power dissipation and rms jitter are 224.3 μW and 7.84 ps, respectively. The active area of the chip is 0.62 mm × 0.76 mm.
關鍵字Digitally controlled pulsewidth modulator (DCPWM);duty-cycle-to-voltage converter (DCVC);process and temperature compensation;programmable multiple frequencies clock generator;voltage-controlled ring oscillator (VCO)
語言英文(美國)
ISSN1937-9234
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Wei-Bin Yang
審稿制度
國別美國
公開徵稿
出版型式,電子版
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