Embedded low power clock generator for sensor nodes

Schrape, Oliver; Vater, Frank

doi:10.1109/norchp.2012.6403139

Cited by 2 publications

(2 citation statements)

References 21 publications

(13 reference statements)

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“…DCO generates clock signals with a duty cycle of nearly 50% and has a settling time of 15 µs. More details on the implemented DCO are given in [ 61 ].…”

Section: Microcontroller Designmentioning

confidence: 99%

An Embedded Sensor Node Microcontroller with Crypto-Processors

Panić

Stecklina

Stamenković

2016

Sensors

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Wireless sensor network applications range from industrial automation and control, agricultural and environmental protection, to surveillance and medicine. In most applications, data are highly sensitive and must be protected from any type of attack and abuse. Security challenges in wireless sensor networks are mainly defined by the power and computing resources of sensor devices, memory size, quality of radio channels and susceptibility to physical capture. In this article, an embedded sensor node microcontroller designed to support sensor network applications with severe security demands is presented. It features a low power 16-bitprocessor core supported by a number of hardware accelerators designed to perform complex operations required by advanced crypto algorithms. The microcontroller integrates an embedded Flash and an 8-channel 12-bit analog-to-digital converter making it a good solution for low-power sensor nodes. The article discusses the most important security topics in wireless sensor networks and presents the architecture of the proposed hardware solution. Furthermore, it gives details on the chip implementation, verification and hardware evaluation. Finally, the chip power dissipation and performance figures are estimated and analyzed.

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“…DCO generates clock signals with a duty cycle of nearly 50% and has a settling time of 15 µs. More details on the implemented DCO are given in [ 61 ].…”

Section: Microcontroller Designmentioning

confidence: 99%

An Embedded Sensor Node Microcontroller with Crypto-Processors

Panić

Stecklina

Stamenković

2016

Sensors

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“…depending on the application. For instance, the work in [3] describes a Digitally Controlled Oscillator (DCO) design, that runs at a relatively low frequency (5.8MHz -13.9MHz). For sensor nodes that perform only basic computations, or for generating a 13.56MHz carrier for RFID, this frequency range would be acceptable.…”

Section: Introductionmentioning

confidence: 99%

Intermittent Excitation of High-Q Resonators for Low-Power High-Speed Clock Generation

Schormans

Valente

Demosthenous

2018

2018 IEEE International Symposium on Circuits and Systems (ISCAS)

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There is growing demand for circuits that can provide ever greater performance from a minimal power budget. Example applications include wireless sensor nodes, mobile devices, and biomedical implants. High speed clock circuits are an integral part of such systems, playing roles such as providing digital processor clocks, or generating wireless carrier signals; this clock generation can often take a large part of a system's power budget. Common techniques to reduce power consumption generally involve reducing the clock speed, and/or complex designs using a large circuit area. This paper proposes an alternative method of clock generation based on driving a high-Q resonator with a periodic chain of impulses. In this way, power consumption is reduced when compared to traditional resonator based designs; this power reduction comes at the cost of increased period jitter. A circuit was designed and laid out in 0.18µm CMOS, and was simulated in order to test the technique. Simulation results suggest that the circuit can achieve a FoM of 4.89GHz/mW, with a peak period jitter of 10.2ps at 2.015GHz, using a model resonator with a Q-factor of 126.

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Embedded low power clock generator for sensor nodes

Cited by 2 publications

References 21 publications

An Embedded Sensor Node Microcontroller with Crypto-Processors

An Embedded Sensor Node Microcontroller with Crypto-Processors

Intermittent Excitation of High-Q Resonators for Low-Power High-Speed Clock Generation

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