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Forum Post: RE: TSW3085EVM: Change the sampling rate

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Hi, We know that: data rate x interpolation = DAC sampling rate. Using DAC3482 _1228p8MHz_2xInt_NCO_30MHz_single_sync_source_mode the interpolation is 2x. Using the WCDMA_TM1_complexIF30MHz_Fdata614.4MHz_1000.tsw and setting 614.4 SPS on the HSDC pro the system works perfectly. Using the WCDMA_TM1_complexIF30MHz_Fdata307.2MHz_1000.tsw and interpolation of 4 x the systen doensn't work perfectly. The bandwidht is wrong and the spectrum have many repetitions The system works correctly only if i setting data rate 614.4M. My doubt is: What do I have to change for the system to run at a rate of 307.2M? And with lower rates? Which option do I have to change in tsw 3085 Software control? I'm sorry if the answer is obvious, but I have not found it in any manual.

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