neddie
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Hi to all.
Don't know much about RF so I may be asking a stoopid question. I've attached (I hope) the datasheet
of the BLF571 RF power transistor from NXP. I'm looking at the impedance information on page 4.
It gives the impedances (at 225MHZ). Are these impedances quoted the optimum source and load impedances.
I'm assuming so from the direction of the arrows. If this is the case , can I assume the input impedance
looking into the transistor gate is 9.7-j31.5 and looking back into the drain 31.7-j29.3 , this would make both
impedances capacitive , which is sort of what I'd expect.
This stuff always confuses me :0(
Cheers
Rob
Don't know much about RF so I may be asking a stoopid question. I've attached (I hope) the datasheet
of the BLF571 RF power transistor from NXP. I'm looking at the impedance information on page 4.
It gives the impedances (at 225MHZ). Are these impedances quoted the optimum source and load impedances.
I'm assuming so from the direction of the arrows. If this is the case , can I assume the input impedance
looking into the transistor gate is 9.7-j31.5 and looking back into the drain 31.7-j29.3 , this would make both
impedances capacitive , which is sort of what I'd expect.
This stuff always confuses me :0(
Cheers
Rob