Title :
An adjustable bipolar quadrature LO generator with an improved divide-by-2 stage
Author :
Behbahani, Farbod ; Fotowat-Ahmady, Ali ; Navid, Saeed ; Gaethke, Rainer ; Delurio, Micheal
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
29 Sep-1 Oct 1996
Abstract :
By adding a DC signal to a smooth (non-square wave) clock of a divide-by-2 stage, an adjustable I&Q generator is implemented. An unbalanced differential pair is used as the clock buffer to improve lower frequency behavior by generating non-overlapping clocks and to prevent free oscillation problem
Keywords :
bipolar digital integrated circuits; buffer circuits; clocks; differential amplifiers; dividing circuits; pulse generators; DC signal; adjustable I&Q generator; clock buffer; divide-by-2 stage; lower frequency behavior; nonoverlapping clocks; quadrature LO signal generator; unbalanced differential pair; Clocks; DC generators; Degradation; Digital modulation; Frequency; Latches; Signal generators; System performance; VHF circuits; Wideband;
Conference_Titel :
Bipolar/BiCMOS Circuits and Technology Meeting, 1996., Proceedings of the 1996
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-7803-3516-3
DOI :
10.1109/BIPOL.1996.554636
