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What is the difference between a modulator and a vector modulator?

Question asked by mwyville on Mar 19, 2013
Latest reply on Mar 19, 2013 by mwyville

The circuit description for the quadrature modulators seems to be the same for the vector modulators. As an example compare the AD8349 modulator with the AD8341 vector modulator. Both split the RF input with a 90 degree difference, then independently vary the amplitude of the two split paths, then recombine the two split paths.

 

Can I use them interchangeably or am I missing something?

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