Hello,
Any tested reference design, app. notes available for components values optimisation for QPA9119 500-1200MHz? MatchCalc designs?
I think I will use schematic from datasheet (page 4). But need recalculate matching circuit.
I will be gatefull for any information.
ā Best Regards,
Victor
P.S. I select QPA9119 for driving TGA2237-SM (10W, 500-1200 MHz). Are other`s drivers better (in term of matching) for my task? Please, advice to me.
Hello Victor. The QPA9119 is more of a ~ 20% tune bandwidth PA, so good performance over 500-1200 MHz will be impossible (300 MHz BW is more feasible). I will keep looking, but Iām not seeing another candidate. The back-up option could be to use another TGA2237-SM as the driver with a lower RF input level.
Hello DCO,
Thank you for the reply.
Using second TGA2237-SM as driver possible, but is not cost effective.
Issue already resolved by QORVO Technical Support.
I would like to say thanks to Malcolm.