Resonant tunnelling delta sigma modulator suitable for high-speed operation |
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Authors: | Maezawa K Sakou M Matsubara W Mizutani T |
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Affiliation: | Graduate Sch. of Eng., Nagoya Univ., Japan; |
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Abstract: | A resonant tunnelling logic gate, monostable-bistable transition logic element (MOBILE), was used to test high frequency operation of the /spl Delta//spl Sigma/ modulator based on a frequency modulated intermediate signal. This /spl Delta//spl Sigma/ modulator has no feedback loop and is promising for high-speed operation. Good noise shaping characteristics over four decades were measured. This ideal noise shaping demonstrated that the MOBILE can work as an ideal quantiser. |
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