Title :
10-Gb/s CMOS ultrahigh-speed gold-code generator using differential-switches feedback
Author :
Lu, C.-L. ; Wang, H.-C. ; Juang, J.C. ; Chuang, H.-R.
Author_Institution :
Kun San Univ., Tainan Hsien
Abstract :
This paper proposes a new architecture for the implementation of an n-input XOR gate in ultrahigh-speed applications. The new circuitry makes it possible to let the conventional sequence logic with XOR feedback, such as Gold code generator, to work up to ten-gigabit per second. This paper will systematically describe the principle of substituting a set of differential switches for an XOR gate. The proposed circuitry is demonstrated in a five-stage Gold code generator implemented in TSMC 0.18-mum 1P6M CMOS process. The simulation results show that the delay of the proposed four-input XOR gate is so much improved as to let the five-stage (5,3) and (5,4,3,2) Gold code generator to work up to 10 Gb/s.
Keywords :
CMOS logic circuits; circuit feedback; delays; logic gates; TSMC CMOS process; delay; differential-switches feedbacks; n-input XOR gate; size 0.18 mum; ultrahigh-speed gold-code generator; CMOS integrated circuits; CMOS logic circuits; Delay; Feedback circuits; Gold; HDTV; Logic circuits; Switches; Telecommunication switching; Virtual colonoscopy; CMOS; Gold-code generator; differential switch; high-speed XOR;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412693
