Analysis and Design of Bang-Bang PD-Based Phase Noise Filter

作者：Hu Tongning; Hao Shilei; Gu Qun Jane^*

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2017, 64(10): 2703-2713.

DOI：10.1109/TCSI.2017.2703104

• Bang-bang phase detector (BBPD)
• delay line
• frequency discriminator (FD)
• phase noise filter (PNF)
• phase noise suppression
• phase noise cancellation
• time-amplifier (TA)
• voting machine

In this paper, we present a bang-bang phase detector (BBPD) and a delay-line frequency discriminator-based phase noise filter (PNF). With a larger phase detection gain, the BBPD-based PNF enhances the sensitivity by suppressing the charge pump noise. A time-amplifier and a five times voting machine are introduced together with the sense-amplifierflip- flop to minimize the BBPD noise to make its effects negligible in the PNF sensitivity. At 1-MHz offset, the PNF demonstrates 15-dB phase noise suppression with -120.2-dBc/Hz sensitivity. Its phase noise suppression offset frequency is from 100 kHz to 8 MHz with 10-10.1-GHz input frequency range. The circuit is fabricated in a 65-nm CMOS technology, and dissipates 98-mW power.

• 出版日期2017-10