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Description:CMOS 300 MHz Quadrature Complete-DDS
Manufacturer:Analog Devices
Datasheet:PDF (433K).
Click here to download *)

The AD9854 digital synthesizer is a highly integrated device that uses advanced DDS technology, coupled with two internal high-speed, high-performance quadrature D/A converters and a comparator to form a digitally-programmable I and Q synthesizer function. When referenced to an accurate clock source, the AD9854 generates highly stable, frequency-phase-amplitudeprogrammable sine and cosine outputs that can be used as an agile L.O. in communications, radar, and many other applications. The AD9854's innovative high-speed DDS core provides 48-bit frequency resolution (1 microHertz tuning steps). Phase truncation to 17 bits assures excellent SFDR. The AD9854's circuit ( continued on page 14)

Click here to download AD9854AST Datasheet
Click here to download AD9854AST Datasheet
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