A Compact Direct Digital Frequency Synthesizer for System-on-chip

A compact direct digital frequency synthesizer (DDFS) for system-on-chip (SoC) is developed in this paper. For smaller chip size and lower power consumption, the phase to sine mapping data is compressed by using sine symmetry technique, sine-phase difference technique, quad line approximation (QLA) technique and quantization and error read only memory (QE-ROM) technique. The ROM size is reduced by 98 % using the techniques mentioned above. A compact DDFS chip with 32-bit phase storage depth and a 10-bit on-chip digital to analog converter(DAC) has been successfully implemented using standard 0.35um CMOS process. The core area of the DDFS is 1.6mm(2). It consumes 167 mW at 3.3V, and its spurious free dynamic range (SFDR) is 61dB.

A compact direct digital frequency synthesizer (DDFS) for system-on-chip (SoC) is developed in this paper. For smaller chip size and lower power consumption, the phase to sine mapping data is compressed by using sine symmetry technique, sine-phase difference technique, quad line approximation (QLA) technique and quantization and error read only memory (QE-ROM) technique. The ROM size is reduced by 98 % using the techniques mentioned above. A compact DDFS chip with 32-bit phase storage depth and a 10-bit on-chip digital to analog converter(DAC) has been successfully implemented using standard 0.35um CMOS process. The core area of the DDFS is 1.6mm(2). It consumes 167 mW at 3.3V, and its spurious free dynamic range (SFDR) is 61dB.

zhangdi于2010-03-09批量导入

zhangdi于2010-03-09批量导入

IEEE Beijing Sect.; Chinese Inst Elect.; IEEE Electron Devices Soc.; IEEE EDS Beijing Chapter.; IEEE Solid State Circuits Soc.; IEEE Circuites & Syst Soc.; IEEE Hong Kong EDS, SSCS Chapter.; IEEE SSCS Beijing Chapter.; Japan Soc Appl Phys.; Elect Div IEEE.; URSI Commiss D.; Inst Elect Engineers Korea.; Assoc Asia Pacific Phys Soc.; Peking Univ, IEEE EDS Student Chapter.

[Cao Xiaodong; Ni Weining; Yuan Ling; Hao Zhikun; Shi Yin] Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China

IEEE Beijing Sect.; Chinese Inst Elect.; IEEE Electron Devices Soc.; IEEE EDS Beijing Chapter.; IEEE Solid State Circuits Soc.; IEEE Circuites & Syst Soc.; IEEE Hong Kong EDS, SSCS Chapter.; IEEE SSCS Beijing Chapter.; Japan Soc Appl Phys.; Elect Div IEEE.; URSI Commiss D.; Inst Elect Engineers Korea.; Assoc Asia Pacific Phys Soc.; Peking Univ, IEEE EDS Student Chapter.