Title :
Parabolic approximation: a new method for phase to amplitude conversion in sine-output direct digital frequency synthesizers
Author :
Sodagar, Amir M. ; Lahiji, G.R.
Author_Institution :
S. Rajahee Univ., Tehran, Iran
Abstract :
A new approach in sine amplitude approximation for sine-output direct digital frequency synthesizers “parabolic approximation” is presented. The proposed approximation provides an initial guess, which is much closer to the target sine amplitude than previous approximations and can be simply implemented using full-digital circuitry
Keywords :
approximation theory; data compression; direct digital synthesis; full-digital circuitry; parabolic approximation; phase to amplitude conversion; sine-output direct digital frequency synthesizers; Approximation error; Circuits; Clocks; Costs; Energy consumption; Frequency synthesizers; Hardware; Modems; Read only memory; Table lookup;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857145
