In the TUS4xx0 EVM GUI, what is the difference between 400a, 400b, etc in BPF_HPF_FREQ bit field?
Also, is it right that the BPF cannot be centered around 1MHz and therefore we can only use the HPF for 1MHz transducer applications?
Thanks
Tushar
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In the TUS4xx0 EVM GUI, what is the difference between 400a, 400b, etc in BPF_HPF_FREQ bit field?
Also, is it right that the BPF cannot be centered around 1MHz and therefore we can only use the HPF for 1MHz transducer applications?
Thanks
Tushar
Hello Tushar,
Thank you for the question. There is no difference between 400a, 400b, 400c.... and unfortunately the bandpass filter cannot be centered around 1MHZ the highest value it can be centered at is 731.09kHz which can be achieved by ensuring that BPF_BYPASS = 0X0 or BPF Enabled in the GUI. BPF_FC_TRIM_FRC = 0x1 or override in the GUI. Setting BPF_HPF_FREQ = 0x2F, 500 in GUI and setting BPF_FC_TRIM = 0x7, 731.09. I hope this answers your questions.
Best,
Isaac