A low-jitter ring-DCO-based fractional-N digital PLL with a 1/8 DTC-range-reduction technique using a quadruple-timing-margin phase selector

H Park, C Hwang, T Seong… - IEEE Journal of Solid-State …, 2022 - ieeexplore.ieee.org
This work presents a fractional-ring-oscillator (RO)-based digital phase-locked loop (DPLL).
To achieve ultralow jitter, the proposed RO-DPLL used a technique to reduce the dominant …

An ultra-low-power widely-tunable complex band-pass filter for RF spectrum sensing

N Pekcokguler, D Morche, A Burg… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Power consumption is of utmost importance in portable devices as they are operated from a
limited energy supply. Wireless radio is one of the most power-hungry blocks in these …

Fractional-N Digital MDLL With Injection-Error Scrambling and Calibration

Q Zhang, HC Cheng, S Su… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article presents a fractional-digital multiplying delay-locked loop (MDLL) that uses a
digital-to-time converter (DTC) for controlling the reference injection timing to support the …

A 2.4-GHz ring-VCO-based time-to-voltage conversion PLL achieving low-jitter and low-spur performance

J Hu, R Zou, Y Yao, J He, D Wang - Microelectronics Journal, 2024 - Elsevier
Ring oscillator (RO)-based frequency synthesizers have been widely used in Systems on
Chip (SoCs) due to their tiny active area and broad tuning range. However, they also …

[HTML][HTML] A 3.2 GHz Injection-Locked Ring Oscillator-Based Phase-Locked-Loop for Clock Recovery

D Vert, M Pignol, V Lebre, E Moutaye, F Malou… - Electronics, 2022 - mdpi.com
An injection-locked ring oscillator-based phase-locked-loop targeting clock recovery for
space application at 3.2 GHz is presented here. Most clock recovery circuits need a very low …

14.1 A Fractional-N Digital MDLL with Injection-Error Scrambling and Background Third-Order DTC Delay Equalizer Achieving− 67dBc Fractional Spur

Q Zhang, HC Cheng, S Su… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
Ring-oscillator (RO)-based injection-locked phase-locked loops (IL-PLLs) and multiplying
delay-locked loops (MDLLs) are promising candidates for low-cost, high-performance clock …

[HTML][HTML] A 0.055 mm2 Total Area Triple-Loop Wideband Fractional-N All-Digital Phase-Locked Loop Architecture for 1.9–6.1 GHz Frequency Tuning

B Kang, Y Kim, H Son, S Kim - Electronics, 2024 - mdpi.com
This paper presents a wideband fractional-N all-digital phase-locked loop (WBPLL)
architecture featuring a triple-loop configuration capable of tuning frequencies from 1.9 to …

An Injection-Locked and Sub-Sampling Clock Multiplier With a Two-Step SC DAC Achieving 2.67% Jitter Variation

Q Huang, S Huang, Y Chen, Y Fan… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This article presents an injection-locked clock multiplier (ILCM) using a digitally controlled
frequency-tracking loop (FTL) with an integral two-step switched-capacitor (SC) digital-to …

A Reduced-Fractional-Spur DPLL Based on Cyclic Single-Delay-Pair Vernier TDC

P Lu, M Chen, S Desai - 2024 IEEE International Symposium …, 2024 - ieeexplore.ieee.org
A fractional-N digital phase-locked loop (DPLL) utilizing a cyclic single-delay-pair Vernier
time-to-digital converter (TDC) is introduced. By completely eliminating the quantization step …

Circuits and Techniques for All-Digital Frequency Synthesizers and Design Automation

K Kwon - 2023 - deepblue.lib.umich.edu
As semiconductor fabrication process become complex to achieve target yield and
performance in sub-20nm field-effect transistors (FETs), not only the number of design rule …