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Clarity on technical terms

Clarity on technical terms

Clarity on technical terms

(OP)
What is the difference between a double balanced mixer and a double balanced modulator?  Can they be used interchangable ?? If yes, why are they sold underseperate names ??

jb2003

RE: Clarity on technical terms

Yes, they are one and the same.  The name applied is usually determined by how the device is applied.
A double balanced modulator is just a double balanced mixer applied as a modulator.  A classic example is the Motorola MC1496.  It is listed as a balanced modulator/demodulator.  But, if you look at the simplified schematic, you will see that it is actually a double balanced mixer.  Page 9 of the datasheet talks about using it as a double balanced mixer.
Why the confusion?  Why are they sold under different names?  Who knows... Probably a marketing rather than an engineering decision.

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