LPF calibration issue- Reg

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ganeshpatel ece

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Dec 15, 2017, 6:27:16 AM12/15/17
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Hi sir,
 i am using LMS 6002d in my project.


1.LMS 6002d is configured by using SPARTEN-6 FPGA.
2.No issue was found reading and  writing to the SPI.
3.Auto calibration steps are performing at initial start up of LMS.( Steps are Copied from FAQ v1.0r12 (by lime))
4. PLL successfully locked. Gain of VGA2 also observed by increasing and decreasing the value .
5. The output wave form observed at spectrum analyzer and it was found at wanted LO frequency.


5. But after applying the a) Base band NRZ input at 5Mhz,       b) 2.5Mhz IQ selection clock     c) 5Mhz clock as TX clock 
 the spectrum is not changing , its still only the carrier.
we are debugging in so many ways but input we are not able to applying. Can any Body give solution on this issue.


Thanks & Regards 
Kasarla Ganesh   

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