A Digital Down Converter (DDC) is presented based on square wave local oscillators facilitating a multiplier-less implementation with no constraints on the sampling frequency. The DDC includes a pseudo multi-rate SINC low pass filter which exhibits better performance compared to the standard multi-stage sinc filter. The pseudo multi-rate SINC filter can be implemented with a unique cascaded integrator comb (CIC) filter to obtain the same improved performance. A 90nm CMOS design with 8 bit inputs clocked at 400MHz demonstrates a flexible, very low power/size DDC architecture for single chip digital receiver applications.


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    Titel :

    Multiplier-less Digital Down Converter in 90nm CMOS technology


    Beteiligte:
    Ren, Saiyu (Autor:in) / Billman, Steven (Autor:in) / Siferd, Ray (Autor:in)


    Erscheinungsdatum :

    2011-07-01


    Format / Umfang :

    568784 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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