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New Data Converter Eliminates Signal Baluns

TeledyneTeledyne e2v has previewed the future availability of its EV10AS940 the latest advanced 10-bit broadband data converter.

This device forms part of the company’s multi-year push into software-defined microwave technologies and builds upon previously reported proof-of-concept work in this challenging and exciting field.

“The EV10AS940 represents a paradigm shift for microwave radio link engineers. For the first time, it is possible to conceive of simple radio designs where frequency planning is entirely abstracted to the digital domain,” said Nicolas Chantier, Strategic Marketing Director.

Conventional radio systems are still based on the heterodyne principle largely owing to existing component bandwidth limitations. Heterodyning is the process of mixing two signal frequencies in a non-linear mixer. For receivers, the lower frequency heterodyne signal lands within the baseband reception range – invariably defined by the input bandwidth of an A/D converter.

This sampler institutes a major front-end architectural change. By migrating to single-ended (SE) design rules for the clock and signal lines, frequency dependent baluns can be eliminated. Those components add both cost and weight whilst band limiting frequency selection. This is a big deal, since baluns negatively impact upon dynamic performance and simultaneously prevent multi-band operation.

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Nitisha Dubey

I am a Journalist with a post graduate degree in Journalism & Mass Communication. I love reading non-fiction books, exploring different destinations and varieties of cuisines. Biographies and historical movies are few favourites.

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