Low-Voltage, Full-Swing Voltage-Controlled Oscillator With Symmetrical Even-Phase Outputs Based on Single-Ended Delay Cells

Wang, San-Fu

doi:10.1109/tvlsi.2014.2345277

Cited by 20 publications

(15 citation statements)

References 17 publications

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“…The PLL must have a wide range of operating frequencies to support frame rates from 60 to 240 Hz in a display device. Further, the supply voltage (VDD) of the PLL must be decreased to reduce the power consumption [4,5]. To facilitate these characteristics of the PLL, the voltage-controlled oscillator (VCO) must operate within a wide range of tuning frequencies and a narrow range of control voltages (V ctrl ).…”

Section: Introductionmentioning

confidence: 99%

Sub-1 V V-I converter-based voltage-controlled oscillator with a linear gain characteristic

Choi

Min

et al. 2017

IEICE Electron. Express

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This letter proposes a novel sub-1 V voltage-current (V-I ) converter-based voltage-controlled oscillator (VCO) for the low-voltage phaselocked loop (PLL) of display driver integrated circuit. The proposed VCO improves on the state-of-the-art V-I converter-based VCO, which uses a firstorder current equation for the VCO, to achieve linear voltage-to-frequency gain of the VCO (K VCO ) over the full range of the control voltage, from the ground to the supply voltage in sub-1 V CMOS technology. To obtain a full supply transition output with high immunity to noise, the improved VCO is designed to control the gate voltage of a metal-oxide-semiconductor fieldeffect transistor (MOSFET), instead of the supply voltage of a ring oscillator without significant area overhead. As a result, the proposed VCO obtains a linear K VCO with a wider control voltage range than a conventional VCO when its tuning range is from 1.25 to 3.6 GHz in a 65 nm 1.0 V CMOS technology.

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Section: Introductionmentioning

confidence: 99%

Sub-1 V V-I converter-based voltage-controlled oscillator with a linear gain characteristic

Choi

Min

et al. 2017

IEICE Electron. Express

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“…In the proposed work, the ring oscillator (RO) is designed with only two delay stages and a NAND gate for controlling the oscillation based on ( EN ) signal for low power operation. Some of the ROs implemented with an even number of stages are reported in [27,28]. The proposed 2-stage ring VCO with enable input ( EN ) is shown in Fig.…”

Section: Voltage Controlled Oscillator (Vco)mentioning

confidence: 99%

“…The IP2 and IP3 can be defined as where, g n m is the nth order transconductance of the operating device. From (27) and (28), increasing the first-order transconductance g 1 m will increase both the intercept points. The increase in g 1 m is not straightforward since this increases the bias current.…”

Section: Design and Optimization Trade-offs Between Conversion Gain mentioning

confidence: 99%

A 3-stage RF down-converter network for portable, wearable 5G applications

Gladson

Bhaskar

2019

SN Appl. Sci.

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The emerging 5G internet-of-things applications in home automation, smart wearables, healthcare monitoring, automotive sensors require low-cost, area efficient, high-performance and low power radio frequency blocks for effective short-range communication. This growing market demand is addressed in this paper by proposing a fully CMOS RF down-converter (RFDC) network for 5G applications. This work aims to achieve high linearity, low noise figure and high gain simultaneously by optimally splitting the performance between the three stages of the RFDC. The proposed downconversion system is designed in UMC 180 nm CMOS process technology and the post-layout simulations on layout extracted parameters with Cadence SpectreRF shows an IIP3 of − 3.43 dBm, an IIP2 of 78.13 dBm, double-sideband noise figure of 12.76 dB, a conversion gain of 23.69 dB, the spurious-free dynamic range of 71.7 dB, and the phase noise of − 91.39 dBc/Hz at an offset of 5 MHz. The proposed frequency translation circuit occupies a core area of only 0.0043 mm 2 and consumes a low power of 12.6 mW from a 1.8 V supply.

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“…At the simulation stage, four-step functions were considered: 1 = 1 • 1( ), 2 = 2 • 1( ), 3 = 3 • 1( ) and 4 = 4 • 1( ), where 1 = 0.8 , 2 = 1 , 3 = 1.2 , 4 = 1.5 , for all , the rising time ( ) was equal -= 0.1ns. The exemplary response for transistors 3 (continuous line) and 4 (dotted line) is presented in Fig. 3.…”

Section: Simulation Profilementioning

confidence: 99%

“…The fitness function ( ) of each individual on the basis of which the global minimum is calculated is as follows 3 12 4 2 , 6 0. 5 12…”

Section: Artificial Neural Networkmentioning

confidence: 99%

Identification of the Specification Parameters for a Voltage Controlled Oscillator Using an Artificial Neural Network with a Genetic Algorithm

Temich¹,

Chruszczyk²,

Grzechca³

2018

ElAEE

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This paper presents the application of an artificial neural network with a genetic algorithm for identifying the selected specification parameters of a voltagecontrolled oscillator (VCO). In modern electronics, the complexity of the production process may cause errors in analogue and mixed-signal electronic circuits, and inaccuracies in this technological process have a direct impact on the specification parameters of a VCO. The modern market requires that the production process has to be as quick as possible, and therefore testing systems should be fast and have the highest efficiency of parameter identification. In the following paper, a genetic algorithm is used to optimise the number of output signal measurement points, which allows them to be identified by the specification parameters of the VCO that are selected by an artificial neural network. The proposed method is characterised by shortening the test time of the system while maintaining a high efficiency in the identification of the selected design specification parameters.

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Low-Voltage, Full-Swing Voltage-Controlled Oscillator With Symmetrical Even-Phase Outputs Based on Single-Ended Delay Cells

Cited by 20 publications

References 17 publications

Sub-1 V <i>V</i>-<i>I</i> converter-based voltage-controlled oscillator with a linear gain characteristic

Sub-1 V <i>V</i>-<i>I</i> converter-based voltage-controlled oscillator with a linear gain characteristic

A 3-stage RF down-converter network for portable, wearable 5G applications

Identification of the Specification Parameters for a Voltage Controlled Oscillator Using an Artificial Neural Network with a Genetic Algorithm

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