Title :
Bandpass sigma-delta modulation
Author :
Schreier, Richard ; Snelgrove, M.
Author_Institution :
Dept of Electr. Eng., Toronto Univ., Ont., Canada
Abstract :
A bandpass version of sigma-delta modulation is presented, with simulation results for second- and fourth-order convertors. For the fourth-order convertor operating at 8 MHz, simulations demonstrate a resolution of 16 bits over an 8 kHz band centred at 1 MHz. Applications may include analogue/digital conversion for AM radio, and digital/analogue conversion for narrowband RF systems.
Keywords :
analogue-digital conversion; delta modulation; digital-analogue conversion; 8 MHz; 8 kHz; AM radio; analogue/digital conversion; bandpass version; digital/analogue conversion; fourth-order convertors; narrowband RF systems; second-order convertors; sigma-delta modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19891048
