Author - Ajay Kuckreja

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Ajay Kuckreja	Write for Microwaves & RF

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August 2010 [Components]
High-Speed DACs Ease Transmitter Designs
Radio transmitters can now be designed with direct digital modulation, due to the availability of high-speed digital-to-analog converters (DACs). This approach is already commonly used to generate multicarrier quadrature-amplitude- modulation (QAM) signals for data transmission over Hybrid Fiber Coax (HFC) links in cable-television (CATV) access networks, and is also used to synthesize microwave intermediate- frequency (IF) signals for instrumentation, ...