Integrated RF transmitter based on SAW oscillator

For the use in small, low power and low cost RF transmitters an oscillator ASIC in 1.2µ BICMOS technology operating at 433 MHz has been built. The ring oscillator topology with a phase shifter in the feedback loop provides as a novel feature also FM modulation. Integration of the oscillator ASIC tog...

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Bibliographic Details
Published inProceedings of the 23rd European Solid-State Circuits Conference pp. 344 - 347
Main Authors Heuberger, A., Drischel, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Application specific integrated circuits
BiCMOS integrated circuits
Costs
Feedback loop
Phase shifters
Radio frequency
Ring oscillators
Surface acoustic waves
Topology
Transmitters
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Summary:For the use in small, low power and low cost RF transmitters an oscillator ASIC in 1.2µ BICMOS technology operating at 433 MHz has been built. The ring oscillator topology with a phase shifter in the feedback loop provides as a novel feature also FM modulation. Integration of the oscillator ASIC together with the SAW resonator in a single package allows single device operation with very few external components.