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S2-LP Custom Board - Need help

Question asked by Silas Valera on Jan 7, 2018
Latest reply on Apr 19, 2018 by Silas Valera



I have my custom RF board using S2-LP and balun BALF-SPI2-01D3 (click here for the data sheet) and my custom board follows the evaluation design given in the balun data sheet. I am having problem with it: 

The host controller communicates fine with S2-LP over SPI (I can see the expected signals on oscilloscope for SCL, SDI, SDI and CS). Also SMPS 1 and 2  (pins 2 and 3 of S2-LP) show expected waveforms. But there is not signal on TX pin. Can anyone help me please?



Silas Valera