DocumentCode :
439574
Title :
An injection locking scheme for precision quadrature generation
Author :
Melville, Robert ; Long, David ; Gopinathan, Venu ; Kinget, Peter
Author_Institution :
Agere Systems, Murray Hill, New Jersey
fYear :
2001
fDate :
18-20 Sept. 2001
Firstpage :
17
Lastpage :
20
Abstract :
We describe a novel quadrature splitter based on injection locking a cascade of ring oscillators to a single phase reference clock. The output signals are in accurate quadrature with low phase noise over a wide bandwidth. This scheme operates at a high signal frequency and is inherently insensitive to the shape of the reference clock waveform. Experimental results at 2.7 GHz are reported for a prototype implementation in 0.25µn BiCMOS technology. To prove the viability of this scheme, a single-sideband mixer was implemented along with the splitter. Over many chips, a considerable improvement in sideband rejection was observed from the state of the art.
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2001. ESSCIRC 2001. Proceedings of the 27th European
Conference_Location :
Villach, Austria
Type :
conf
Filename :
1471323
Link To Document :
بازگشت