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TRF372017

Other Parts Discussed in Thread: TRF372017

Some questions about TRF372017 below.

1. How can I improve the Loop Filter in TRF372017?
2. How can I improve the SNR at RF output?
3. May I have the detail register document?

  • Peter Pan:

    1.  The loop filter defined in D/S and user's guide provides optimized loop filter for integer and fractional mode.  You can of course tweak if desired.  The TRF372017 product page provides a link to a loop filter analysis tool to assist in loop filter modifications: http://www.ti.com/tool/loop_filter-calc.

    2. Noise Spectral Density (NSD) for the device is already very good.  For best performance I recommend very clean power supplies and filtering of BB inputs.

    3. The SPI register details are outlined in the datasheet.

    Regards,

    Capt. Hook