Analogue interpolation based direct digital frequency synthesis
نویسندگان
چکیده
A low-power ROM-less Direct Digital Frequency Synthesis (DDFS) system that exceeds the spectral purity of existing low-power DDFS systems by approximately is presented. The design applies an analogue voltage to the CMOS differential current switch in one cell of a non-linear DAC to interpolate between the output values which would be available from a conventional non-linear DAC.
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تاریخ انتشار 2003