SSH and SHH GaInP/GaAs HBT divide-by-3 prescalers with true 50 duty cycle

S. C. Tseng*, Chin-Chun Meng, W. Y. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Two 50 duty cycle divide-by-3 prescalers - sample-sample-hold (SSH) and sample-hold-hold (SHH) prescalers - in the 2m GaInP/GaAs heterojunction bipolar transistor (HBT) technology are realised. Current switchable emitter couple logic D flip-flops are employed to form both prescalers. The proposed SHH prescaler functions up to 2.6GHz while the SSH prescaler operates from DC to 1.75GHz. The maximum operating frequency of the SHH prescaler is enhanced about 50 compared with that of the SSH prescaler owing to better signal synchronisation.

Original languageEnglish
Pages (from-to)796-797
Number of pages2
JournalElectronics Letters
Volume42
Issue number14
DOIs
StatePublished - 6 Jul 2006

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