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LMX2594: Differential RF Output

Pete Binns
Prodigy 10 points

Part Number: LMX2594

I notice all output powers quoted on the data sheet are Single Ended, with either resistive or inductive pull-up.

It is the case that the output can be configured as differential out with 2x resistive or inductive pull-up for an extra 3dB(ish) of power?

Tnx

Pete

  • 0
    TI__Guru** 121240 points

    Hi Pete,

    The RF output buffer is differential, so both pins (_P and _M) has the same output power but their phase is 180° out of phase. If you use a balun to combine them to a single-ended output, assuming there is no loss in the balun, you will get 3dB higher output power than you could get from each RF buffer pin.