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No-OS ad9361_tx_bb_second_filter_calib() calculations

Question asked by dhgeon on Dec 5, 2017
Latest reply on Dec 6, 2017 by dhgeon

I posted a similar question in another thread and was pointed here (see AD9361 Tx filter calculations )

 

What are the No-OS ad9361_tx_bb_second_filter_calib() calculations based on? There is some obvious rounding of a 3dB cutoff frequency to determine resistor and capacitor values, but UG-570 does not specify the actual vs. desired cutoff frequency for the Tx secondary single-pole LPF (like it does for the Tx third order BB LPF).

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