西安微电子技术研究所,陕西,西安,710054
纸质出版:2017
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高辉, 刘文平. 65 nm CMOS工艺时钟发生器的设计与实现[J]. 微电子学与计算机, 2017, 34(9): 107-111.
GAO Hui, LIU Wen-ping. Design and Implementation of a 65 nm CMOS Clock Generator[J]. 2017, 34(9): 107-111.
设计了一款应用于高速片上系统(System-on-Chip
SoC)领域的时钟发生器电路.基于Delta-sigma调制技术实现了小数分频
同时引入了加抖技术(Dither)以及模数转换器(Digital to Analog Converter
DAC)补偿技术
从而大幅度地抑制了Delta-sigma调制引起的量化噪声.基于65 nm CMOS工艺完成了电路设计
仿真结果表明
当输出频率为典型应用的1.2 GHz时
该电路周期抖动(period jitter)的均方根值(rms)约为0.656 ps
功耗仅为约3.824 mW.
This paper introduces a clock generator intended for the use in a high-speed SoC design. Fractional division achieved through the employment of Delta-sigma modulation. Significantly suppression of quantization error
which is caused by the Delta-sigma modulation
obtained through the use of dithering and DAC compensation technology. Circuit design implemented based on a 65 nm CMOS process and the simulation result shows that the period jitter (rms) and the total power are 0.656 ps and 3.824 mW
respectively
when the output frequency is 1.2 GHz of a typical application.
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