A 188fsrms-Jitter and −243d8-FoMjitter 5.2GHz-Ring-DCO-Based Fractional-N Digital PLL with a 1/8 DTC-Range-Reduction Technique Using a Quadruple-Timing …

C Hwang, H Park, T Seong… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
Modern SoCs for advanced wireless/wired applications integrate an increasing number of
PLLs. 5G TRXs require multiple PLLs to implement complex schemes of carrier aggregation …

A 3.2-GHz 405 fsrms Jitter –237.2 dB FoMJIT Ring-Based Fractional-N Synthesizer

A Elmallah, J Zhu, A Khashaba… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
A ring-oscillator (RO)-based low-jitter digital fractional-N frequency synthesizer is presented.
It employs a frequency doubler (FD) that doubles the reference clock frequency, a 2-bit time …

A high-pass shaped LMS algorithm based predistortion technique for fractional-N BB-DPLLs

TM Vo - Microelectronics Journal, 2024 - Elsevier
In this paper, we prove that rather than the second-order Δ Σ modulator (DSM) as typically
believed using the first-order one yields a faster convergence for the linear-piecewise …

A 0.016mm2 Active Area 4GHz Fully Ring-Oscillator-Based Cascaded Fractional-N PLL With Burst-Mode Sampling

J Zhong, X Yang, RP Martins, Y Zhu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This brief presents a compact and power-efficient full ring-oscillator (RO)-based cascaded
fractional-N PLL. The proposed cascaded PLL consists of a RO-based DLL and type-II PLL …