DFD

[Jeff_FSC]

Hi,

I am trying to filter a PDM data stream.  My setup consists of an input data file (this file contains a single column of

-1.414V and +1.414 numbers which represents my single bit PDM data stream).  I am sending this file into the DFD MRate Filtering for Singleblock.vi,  my filter is a CIC Decimation Filter.  My data entering the filter appears correct(via a probe) but the output of the filter is not at all what I would expect, it basically looks like my same list of input numbers with an offset.  Any help out there is greatly appreciated.

thanks

Jeff 

[Ben-N]

Hi Jeff,

I'm sorry to hear that you are having problems getting the filter up and running as you expect.  You mentioned that you have a CIC Decimation filter processing your data, but the output is not what you expect.  My first question is, what are you expecting to see?  How do you have the filter set up?  Can you give us a bit more information about your system so we can have a better idea of what you are working with?  Thanks!