A 4-to-18GHz Active Poly Phase Filter Quadrature Clock Generator with Phase Error Correction in 5nm CMOS

Autor:	Alvin Leng Sun Loke, Chien-Chun Tsai, C. H. Kenny, Tsung-Hsien Tsai, Wen-Hung Huang, Yu-Chi Chen, Chin-Hua Wen, Wei Chih Chen, Chin-Ming Fu
Rok vydání:	2020
Předmět:	Physics CMOS Bandwidth (signal processing) Electronic engineering Bandwidth extension Clock generator Wideband Active filter Noise floor Jitter
Zdroj:	VLSI Circuits
Popis:	We present a high-accuracy wideband quadrature clock generator (QCG) built in 5nm finFET CMOS. To achieve low power and high bandwidth, we employ an active poly phase filter (APPF) to generate the quadrature phases with 6dB gain boost and 30% bandwidth extension. The subsequent quadrature error corrector (QEC) and phase error detector (PED) corrects the APPF output phases with a phase interpolator (PI) to achieve rms phase jitter measured at 14GHz. The noise floor is below –138dBc/Hz at 1GHz offset. The QCG occupies 0.0017mm2 and consumes only 21mW on a 1.0V supply for a FoM of 1.16mW/GHz
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65d954f8671ba4a7824e94df70703605 https://doi.org/10.1109/vlsicircuits18222.2020.9162794 Zobrazit plný text záznamu