suitable amplifier type to power LO ports

[yefj]

Hello ,I need to choose an amplifier to power an LO port of two mixers with 17dBm power level at 10GHz without he following datasheets:
for this purpose I need to choose and amplifier with at least P1dB of 21dBm .
one amplifier is VGA (voltage regulated gain amplifier) and the other is a driver type.
What does it mean driver type amplifier does it fit to power the LO ports of my mixers?

mixers:

MM1-0320HSM-2_GaAs Double-Balanced Mixer

The MM1-0320HSM is a passive GaAs double balanced MMIC mixer suitable for both up and down-conversion applications. As with all Marki Microwave mixers, it features excellent conversion loss, isolation and spurious performance across a broad bandwidth and in a small form factor. The MM1-0320HSM...

markimicrowave.com

https://www.custommmic.com/resources/cmd258c4_ver_1.0_1017.pdf

amplifiers:
1. VGA type

http://www.analog.com/media/en/technical-documentation/data-sheets/hmc996.pdf

2.driver type

http://www.analog.com/media/en/technical-documentation/data-sheets/hmc608.pdf

 

[dick_freebird]

Why do you want to, and are you prepared to,
vary the gain? Then, according to what?

If you only have a minimum spec and you know
the preceding lineup maybe you "vary the gain"
by catalog shopping (more of).

 

[yefj]

Hello, I am confused regarding this "driver " type amplifier.
can it be suitable for my LO ports of the mixers?
or its current output and nout suitable ?
Thanks.