I find the AD9102 sawtooth ouput frequency can adjusted by following equation:period = Digital Gain/fCLK.But,my Gain and fCLK is constant,Can I use the SAW_STEPx field in address 0x37 to adjust the output frequency?
whether with SAW_STEP increase,the output frequency increase or not?
Yes, step would allow you to control the number of samples per sawtooth period, which would effectively vary the output frequency given a constant clock rate (Fclk). Similar to keeping step constant while varying Fclk.
thanks for your reply.
But,I find when I adjust Digital Gain or SAW_STEPx to alter output frequency,the equally DAC resolution is decreased form 14 bit to 7 bit when the output is about 200khz.How can I get a 2 Vpp and 200khz triangular wave with high resolution?or other IC?
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