A 3.5 to 4.7-GHz Fractional-N ADPLL with a Low-Power Time-Interleaved GRO-TDC of 6.2-ps Resolution in 65-nm CMOS Process

KU Cho, J Gil, C Park, KJ Cho, JW Shin, ES Kim… - IEEE …, 2024 - ieeexplore.ieee.org
This paper proposes a low-power design method and a low-noise phase offset calibration
technique for a gated ring-oscillator time-to-digital converter (GRO-TDC), which normally …

A Low-Noise Digital-to-Time Converter Exploiting Waveform of Integrated Crystal Oscillator

T Siriburanon, X Chen, C Liu, J Du… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
In this article, we propose a digital-to-time conversion technique operating entirely in the
sinusoidal waveform voltage domain of a crystal oscillator (XO) before the signal's final …

A DPD/Dither-Free DPLL Based on a Cascaded Fractional Divider and Pseudo-Differential DTCs Achieving a 62.1-dBc Fractional Spur

D Xu, Z Liu, Y Kuai, H Huang, Y Zhang… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
This article presents a 7-GHz fractional-N digital phase-locked loop (DPLL) without any
digital pre-distortion (DPD) on the integral nonlinearity (INL) of the digital-to-time converter …

A Fully Synthesizable Fractional-N MDLL With Energy-Efficient Ring-Oscillator-Based DTC of Large Tuning Range

H Huáng, B Liu, Z Liu, D Xu, Y Zhang… - IEEE Solid-State …, 2024 - ieeexplore.ieee.org
This letter describes a fully synthesizable fractional-multiplexing delay-locked loop (MDLL)
with a ring-oscillator-based digital-to-time converter (RO-DTC). The proposed RO-DTC can …

A Low-Jitter and Compact-Area Fractional-N Digital PLL With Fast Multi-Variable Calibration Using the Recursive Least-Squares Algorithm

S Jang, M Chae, H Park, C Hwang… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
This work presents a fractional-N digital phase-locked loop (DPLL) characterized by low
jitter and small area, featuring fast multi-variable calibration. To minimize the use of silicon …

A Low-Jitter and Low-Reference-Spur Ring-VCO-Based Injection-Locked Clock Multiplier Utilizing a Complementary-Injection Scheme and an Adaptive Pulsewidth …

Z Wang, X Zheng, Y He, H Xu, S Li… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
This article presents a ring voltage-controlled oscillator (RVCO)-based pulse-injection-
locked clock multiplier (ILCM) with a complementary-injection scheme, an adaptive …

A Fractional-N Ring PLL Using Harmonic-Mixer-Based Dual Feedback and Split-Feedback Frequency Division With Phase-Domain Filtering

M Osada, Z Xu, Z Yang, T Iizuka - IEEE Journal of Solid-State …, 2024 - ieeexplore.ieee.org
A phase-locked loop (PLL) employing a split-feedback divider and nested-PLL-based phase-
domain low-pass filter (PDLPF) within the harmonic-mixer (HM)-based dual-feedback …

A 12.24-GHz MDLL With a 102-Multiplication Factor Using a Power-Gating-Based Ring Oscillator

Y Cho, J Lee, S Park, S Yoo… - IEEE Journal of Solid-State …, 2024 - ieeexplore.ieee.org
This work presents a multiplying delay-locked loop (MDLL) that can generate an ultralow
jitter output signal,, at a very high output frequency,. Conventional MDLLs are limited in …

Digital Phase-Locked Loops: Exploring Different Boundaries

Y Zhang, D Xu, K Okada - IEEE Open Journal of the Solid-State …, 2024 - ieeexplore.ieee.org
This article examines the research area of digital phase-locked loops (DPLLs), a critical
component in modern electronic systems, from wireless communication devices to RADAR …

A 7.4–9.2-GHz Fractional-N Differential Sampling PLL Based on Phase-Domain and Voltage-Domain Hybrid Calibration

F Bu, R Ding, D Sun, G Wang, Y Gao… - … Transactions on Very …, 2024 - ieeexplore.ieee.org
This brief proposes a 7.4–9.2-GHz low-noise fractional-N differential sampling phase-locked
loop (DSPLL), which features doubled phase detector (PD) gain. By using the phase …