Characterisation of microcontroller susceptibility to radio frequency interference

Baffreau, S.; Bendhia, S.; Ramdani, Mohamed; Sicard, Étienne

doi:10.1109/iccdcs.2002.1004088

Cited by 25 publications

(20 citation statements)

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“…Previous studies observed changes on the I-V characteristics of diodes, BJTs, and MOSFETs under RFI [1]. Susceptibility levels of a microcontroller and a DSP chip have been measured for RF interference up to 400 MHz, and data corruption was observed on the communication path between the microcontroller and RAM memory [2]. The study also showed that 20 dBm RFI at 350 MHz was enough to trigger the reset pin of a voltage regulator.…”

mentioning

confidence: 76%

Electromagnetic Interference and Digital Circuits: An Initial Study of Clock Networks

Wang¹,

Rodríguez²,

Dirik³

et al. 2006

Electromagnetics

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mentioning

confidence: 76%

Electromagnetic Interference and Digital Circuits: An Initial Study of Clock Networks

Wang¹,

Rodríguez²,

Dirik³

et al. 2006

Electromagnetics

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“…In the frequency range below f injRC , the impedance, which means the magnitude of the impedance here and below, of C INJ is greater than R S , and Z INJ is dominated by C INJ . Above f injRC the impedance is dominated by R S , see (10).…”

Section: Emi Source Modelmentioning

confidence: 99%

“…However, the most widely used approach uses the SPICE-formatted equivalent circuit [9][10][11][12][13][14][15][16][17][18]. [9][10][11][12][13][14][15][16][17][18] are performed on various types of pins of complex ICs. They cover issues like simulation setup, the model of the test fixture, the core model, and the package model.…”

Section: Introductionmentioning

confidence: 99%

Critical Model Components and Their Fingerprint Features in the Simulated Conducted Radio Frequency Immunity of Complex Integrated Circuits

Su¹,

Yang²,

Wang³

2013

PIER

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Abstract-To analyze and to handle the radio frequency immunity of microcontrollers requires understanding the origins of the complex frequency response of the immunity. This paper assumes that the frequency response of the immunity can be characterized with a set of fingerprint features in the immunity curves. Positions and shapes of those fingerprint features are determined by certain components in the disturbance propagation network. In order to prove that assumption, a series of models are created and simulated. The roles of various model components on the immunity are analyzed by comparing the simulation results from different model structures. The fingerprint features on the immunity curves are identified. The paper shows how to treat a wide-range immunity curve with separated features. It also shows the responsible model components for those separated features. With the awareness of those features and their origins, researchers can concentrate on extracting the models of the most important components in the disturbance propagation network when modeling the immunity of the complex integrated circuits like microcontrollers.

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“…Previous studies observed changes on the I-V characteristics of diodes, BJTs, and MOSFETs under RFI [1]. Susceptibility levels of a microcontroller and a DSP chip have been measured for RF interference up to 400 MHz, and data corruption was observed on the communication path between the microcontroller and RAM memory [2]. The same study showed that 20 dBm RF interferences at 350 MHz were enough to trigger the reset pin of a voltage regulator.…”

Section: Introductionmentioning

confidence: 89%

“…These unintentional antennae can serve to couple RF noise into the core circuit [1,2,3]. RFI that is coupled by the system can induce unwanted currents, which cause various disturbances.…”

Section: Introductionmentioning

confidence: 99%

Radio frequency effects on the clock networks of digital circuits

Wang

Dirik

Rodríguez

et al.

2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559)

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-Radio frequency interference (RFI) can have adverse effects on commercial electronics. Current properties of high performance integrated circuits (ICs), such as very small feature sizes, high clock frequencies, and reduced voltage levels, increase the susceptibility of these circuits to RFI, causing them to be more prone to smaller interference levels. Also, recent developments of mobile devices and wireless networks create a hostile electromagnetic environment for ICs. Therefore, it is important to measure the susceptibility of ICs to RFI. In this study, we investigate the susceptibility levels to RFI of the clock network of a basic digital building block. Our experimental setup is designed to couple a pulse modulated RF signal using the pin direct injection method. The device under test is an 8-bit ripple counter, designed and fabricated using AMI 0.5 µm process technology. Our experiments showed that relatively low levels of RFI (e.g., 16.8 dBm with carrier frequency of 1 GHz) could adversely affect the normal functioning of the device under test.

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Characterisation of microcontroller susceptibility to radio frequency interference

Cited by 25 publications

References 0 publications

Electromagnetic Interference and Digital Circuits: An Initial Study of Clock Networks

Electromagnetic Interference and Digital Circuits: An Initial Study of Clock Networks

Critical Model Components and Their Fingerprint Features in the Simulated Conducted Radio Frequency Immunity of Complex Integrated Circuits

Radio frequency effects on the clock networks of digital circuits

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