Title :
Resonant tunnelling delta sigma modulator suitable for high-speed operation
Author :
Maezawa, K. ; Sakou, M. ; Matsubara, W. ; Mizutani, T.
Author_Institution :
Graduate Sch. of Eng., Nagoya Univ., Japan
Abstract :
A resonant tunnelling logic gate, monostable-bistable transition logic element (MOBILE), was used to test high frequency operation of the ΔΣ modulator based on a frequency modulated intermediate signal. This ΔΣ 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.
Keywords :
delta-sigma modulation; frequency modulation; high-speed integrated circuits; logic gates; quantisation (signal); resonant tunnelling devices; ΔΣ modulator; MOBILE; feedback loop; frequency modulated intermediate signal; highspeed operation; logic gate; monostable bistable transition logic element; noise shaping; quantiser; resonant tunnelling delta sigma modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063215
