A 3.57-mW 2.88-GHz Multi-Phase Injection-Locked Ring-VCO With a 200-kHz 1/f³ Phase Noise Corner

Fan, Chao; Zhao, Ya E; Zhang, Yanlong; Yin, Jun; Geng, Li; Mak, Pui-In

doi:10.1109/tcsii.2022.3219447

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…The maximum operating frequency of the PRVCO is better than [4]- [9], [14]- [16]. The operating frequency range of the PRVCO is better than [4], [6], [7], [9], [15], [16]. The PRVCO achieves the best FoM (the lower, the better) compared to already published RVCOs such as [3]- [6], [8], [9], [14]- [16] and comparable to [7].…”

Section: Post-layout Simulation Resultsmentioning

confidence: 81%

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Frequency Range Enhancement in Differential Ring VCO while Maintaining Phase Noise Performance

SINGH¹,

Singh²,

Kadayinti³

et al. 2023

Preprint

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<p>This paper presents a differential delay cell-based ring voltage-controlled oscillator (RVCO). The proposed RVCO (PRVCO) introduces auxiliary charging and discharging paths in conventional ring VCO (CRVCO) that enhance the maximum operating frequency and frequency range. Adding auxiliary paths does not increase the maximum current in PRVCO within different time instants in one period compared to other available RVCOs. Thus, it maintains the phase noise performance. The post-layout simulations of the four-stage PRVCO were performed in 65nm CMOS technology with 1V supply voltage. The maximum operating frequency of the four-stage CRVCO, and PRVCO, are 585MHz and 3.2 GHz, respectively. The PRVCO improves the maximum operating frequency significantly compared to CRVCO. The PRVCO has a linear tuning range from 1.8 GHz to 3.2 GHz, which is 78% better than the CRVCO. The phase noise of the PRVCO is -103.8 dBc/Hz at an offset frequency of 1 MHz. The figure of merit (FoM) is improved by 11 dB compared to CRVCO in the same technology node of 65nm CMOS.</p>

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Section: Post-layout Simulation Resultsmentioning

confidence: 81%

“…In [14], bootstrap RVCO is presented for higher operating frequency, but the phase noise performance is poor. In [15], the power dissipation is lower than the PRVCO because it uses 0.75 V power supply. But the maximum operating frequency, frequency range, and phase noise performance are better in PRVCO.…”

Section: Post-layout Simulation Resultsmentioning

confidence: 99%

Frequency Range Enhancement in Differential Ring VCO while Maintaining Phase Noise Performance

SINGH¹,

Singh²,

Kadayinti³

et al. 2023

Preprint

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“…Phase-locked loops (PLLs) play a significant part in handheld mobile communication equipment for Internet of Things. The application of wireless communication technology has promoted the development of PLLs with low jitter, small area, and low power [1,2,3,4,5]. Voltage-controlled oscillators (VCOs) are the key module of PLLs, which must possess the characteristics of low power and low phase noise to meet the needs of the low power 802.11ah standard for Internet of Things [6,7,8,9,10,11], i.e.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a low phase noise low power ring-VCO

Zou,

Zhang,

Cheng

et al. 2023

IEICE Electron. Express

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A low phase noise low power ring voltage-controlled oscillator (Ring-VCO) is proposed for phase-locked loops (PLLs) in the 802.11ah communication protocol band. A three-stage Ring-VCO with dual-path structure delay cells is designed to meet the high performance requirements of Internet of Things. The main noise source in the differential delay cell can be eliminated at the differential output, thus reducing phase noise. Implemented in an old TSMC 0.18 µm CMOS process, the Ring-VCO achieves a tuning range of 343.56-974.56 MHz. The phase noise at 1 MHz offset varies from -116.28 to -108.74 dBc/Hz, and the current consumed is 2.27 mA.

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“…Inductancecapacitance VCO (LC-VCO) [16]- [19]. The selection of a required VCO architecture is to design a PLL depending on numerous factors, including the desired frequency range, phase noise performance, tuning range, power consumption, and integration complexity [20]- [23]. In the last few years, high-performance VCOs have been in demand to have highspeed wireless applications [24]- [27].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

Sivaraaj,

Majeed

2023

IEEE Access

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Voltage-controlled Oscillator (VCO) is a prominent part that has been used to generate a stable frequency for the high-frequency transceiver system. This survey encompasses a comparative analysis of two commonly used VCO architectures: the Ring VCO and LC-VCO. The Ring VCO has been constructed with the collection of ring delay cells. Moreover, the LC-VCO utilizes inductors, capacitors, fine-tuning circuits, coarse-tuning circuits to generate frequency. Furthermore, this study investigates an in-depth exploration of VCO structures, operational principles, advantages, limitations, and performance metrics. In addition, it evaluates performance parameters, including operating frequency range, phase noise, figure of merit, and tuning techniques. This research suggests that based on the application and its requirements, the VCO performance parameters need to be varied. This survey employs diverse types of VCO, and its design methods. Implications for future research and study of VCO design and integration are discussed.

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A 3.57-mW 2.88-GHz Multi-Phase Injection-Locked Ring-VCO With a 200-kHz 1/f³ Phase Noise Corner

Cited by 7 publications

References 10 publications

Frequency Range Enhancement in Differential Ring VCO while Maintaining Phase Noise Performance

Frequency Range Enhancement in Differential Ring VCO while Maintaining Phase Noise Performance

Design and analysis of a low phase noise low power ring-VCO

A Comparative Study of Ring VCO and LC-VCO: Design, Performance Analysis, and Future Trends

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