A slew-rate controlled output driver using pll as compensation circuit

Shin, Susanna; Jung, Seok-Min; Seo, Jin‐Ho; Ko, Myeong-Lyong; Kim, Jae-Whui

doi:10.1109/jssc.2003.813253

Cited by 36 publications

(2 citation statements)

References 7 publications

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“…The total area of the control circuit presented in this paper was 0.026 mm 2 , while circuits that use a digital approach to control the slew rate of the bus transitions. using VCOs, PLLs and DLLs, occupies an area more than six times larger (0.16 mm 2 ) [4]. Further investigation is being conducted to study the possibility of making the translinear core using only MOS transistors operating in the subthreshold region [13,14], in order to reduce the area of the integrated circuit.…”

Section: Resultsmentioning

confidence: 99%

“…Since the battery voltage V bat , which is the supply voltage in vehicles, can vary from 7 V on a cold day to 40 V on a load dump clamped pulse, generating an output signal with a constant slew-rate independently of the varying logic level amplitudes requires special circuits [4]. In this paper it is presented a simple and robust circuit technique that uses a bipolar translinear circuit core [5] to control the slew-rate of the digital transitions in a LIN transceiver.…”

Section: Introductionmentioning

confidence: 99%

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Analogue control of the slew-rate in LIN bus digital transitions using translinear circuits

Terçariol¹,

Ferreira

Dias

2011

Analog Integr Circ Sig Process

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A novel technique to control the LIN (Local Interconnect Network) bus slew-rate transitions in automotive environment, where large fluctuations of the battery voltage are present, is reported. A bipolar translinear circuit generates a non-linear current that is used to modulate a MOS relaxation oscillator, producing a clock frequency that delivers a constant number of pulses during the LIN bus digital signal transition. This frequency modulated clock when applied to a digitally controlled analogue wave-shape driver results in a LIN bus digital transition with a slew-rate that is constant and independent of the car battery voltage. Experimental results measured in an IC implemented in a BiCMOS process showed that constant slew-rate transition of 1 ± 2% V/ls is obtained for battery voltages varying from 6 to 40 V, over the temperature range of -40 to 150°C.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%