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Generating a digital sine-wave (Read 2984 times)

mowiehowie Junior Member Offline Posts: 26	Generating a digital sine-wave Apr 04^th, 2009, 3:20am Hello I am testing a DAC design on Cadence and until now the digital inputs are given by a vector file. I wanna test the THD, so I need to generate a digital sine-wave. How could it be done? Thank you.
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ywguo Community Fellow Offline Posts: 943 Shanghai, PRC	Re: Generating a digital sine-wave Reply #1 - Apr 4^th, 2009, 7:09am Hi, Put a sine-wave voltage source in the schematic, and quantize the sine wave using an ideal ADC, say ADC in ahdlLib. Yawei
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Mahavir New Member Offline Posts: 8 India	Re: Generating a digital sine-wave Reply #2 - Apr 4^th, 2009, 2:19pm I am also working on similar stuff. You can write a verilog code of memory that stores say 100 samples (memory size will be 100 X 8) of sine wave ( you can use matlab ) and import it in spectre as module. Hope, this will be useful.
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loose-electron Senior Fellow Offline Best Design Tool = Capable Designers Posts: 1638 San Diego California	Re: Generating a digital sine-wave Reply #3 - Apr 5^th, 2009, 5:15pm And if you are pressed for memory, do the numbers for one quarter of the sine wave, and handle the sequencing of the output to reconstruct the whole waveform (pointer counts up 1/4 cycle, down 1/4 cycle, up 1/4 cycle with polarity reversal, down 1/4 cycle with polarity reversal) You get the idea.
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