A high-speed fast-acquisition CMOS phase/frequency detector for MB-OFDM VWB

作者：Chen Roger Yubtzuan^*; Chen Wen Yan

来源：IEEE Transactions on Consumer Electronics, 2007, 53(1): 23-26.

DOI：10.1109/TCE.2007.339496

• phase/frequency detectors
• PFD
• phaselocked loops
• PLL
• frequency synthesizers
• UWB
• MB-OFDM
• CMOS integrated circuits

A high-speed CMOS Phase/Frequency Detector (PFD) for faster frequency acquisition is presented An improved CMOS D-type master-slave flip-flop is described and adopted. Higher speed is attributed to the reduced node capacitances. Charge-sharing phenomena are circumvented. An input delay scheme is employed to achieve faster acquisition. The optimal delay for PFD maximum operating frequency is analytically studied and a design guide is given.(1)

• 出版日期2007-2