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Multiphase active-RC sinusoidal oscillators incorporating lowpass and allpass sections | IEEE Conference Publication | IEEE Xplore

Multiphase active-RC sinusoidal oscillators incorporating lowpass and allpass sections


Abstract:

A generic design of multiphase (m-phase) sinusoidal oscillators is presented, suitable for both odd and even output phases. The practical odd-phase oscillator described u...Show More

Abstract:

A generic design of multiphase (m-phase) sinusoidal oscillators is presented, suitable for both odd and even output phases. The practical odd-phase oscillator described uses a lowpass section in cascade with (m $1)/2 dual-output sections having lowpass and allpass outputs with a frequency adjusted using only (m + 1)/2 grounded resistors. This is a significant improvement compared to m-phase oscillators using m cascaded lowpass or allpass sections, which require adjustment of m passive elements. It is also shown that the new oscillator design may be used as the core of even-phase oscillators having 2m outputs for m /spl ges/ 3.
Date of Conference: 02-02 September 2005
Date Added to IEEE Xplore: 31 October 2005
Print ISBN:0-7803-9066-0
Conference Location: Cork, Ireland

References

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