A Novel 0.72-6.2GHz Continuously-Tunable Delta Sigma Fractional-N Frequency Synthesizer

This paper presents a wideband Delta Sigma-based fractional-N synthesizer with three integrated quadrature VCOs for multiple-input multiple-output (MIMO) wireless communication applications. It continuously covers a wide range frequency from 0.72GHz to 6.2GHz that is suitable for multiple communication standards. The synthesizer is designed in 0.13-um RE CMOS process. The dual clock full differential multi-modulus divide (MMD) with low power consumption can operate over 9GHz under the worst condition. In the whole range frequency from 0.72GHz to 6.2GHz, the maximal tuning range of the QVCOs reaches 33.09% and their phase noise is -119d8/Hz similar to 124d8/Hz @1MHz. Its current is less than 12mA at a 1.2V voltage supply when it operates at the highest frequency of 6.2GHz.

Submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-13T04:29:22Z No. of bitstreams: 1 A Novel 0.72-6.2GHz Continuously-Tunable Delta Sigma Fractional-N Frequency Synthesizer.pdf: 5206476 bytes, checksum: 76b00019f610b62793d7fb14426a9856 (MD5)

Made available in DSpace on 2010-04-13T04:29:22Z (GMT). No. of bitstreams: 1 A Novel 0.72-6.2GHz Continuously-Tunable Delta Sigma Fractional-N Frequency Synthesizer.pdf: 5206476 bytes, checksum: 76b00019f610b62793d7fb14426a9856 (MD5) Previous issue date: 2009

IEEE Beijing Sect.; Fudan Univ.; IEEE China Council.; Natl Univ Def Tech.; IEEE CAS, IEEE SSCS.; Chinese Inst Elect.

其它

IEEE Beijing Sect.; Fudan Univ.; IEEE China Council.; Natl Univ Def Tech.; IEEE CAS, IEEE SSCS.; Chinese Inst Elect.