Discrete frequency synthesis using an analogue r.o.m.
1979; Institution of Engineering and Technology; Volume: 15; Issue: 12 Linguagem: Inglês
10.1049/el
ISSN1350-911X
AutoresGianfranco Manes, Carlo Atzeni,
Tópico(s)Semiconductor Lasers and Optical Devices
ResumoA new analogue frequency synthesiser is introduced and experimentally demonstrated. It is based on a tapped delay line driven by a sinusoidal waveform, which provides analogue sinusoidal samples permanently stored at the output of the individual taps, thus operating as an analogue r.o.m. Frequency synthesis is accomplished by selectively reading-out these sinusoidal samples at a fixed clock rate through an analogue multiplexer. This system represents the analogue counterpart of a digital frequency synthesiser described by other authors, thus allowing similar architectures to be implemented for the generation of a large set of frequencies using analogue operations.
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