Schematic of an amplifier with bandpass filter and impedance matching
So that's not a block diagram, that's a schematic.  Have you read the datasheet? There's a schematic on page 11 that should answer many of your questions. VPD1 and VPD2 are intended to allow you to power down the amplifier, what do you want to do?
I'd suggest some bypassing on Vcc, again the schematic on P11 should point you in the direction to go. You should also look carefully at how Vcc is connected, as you also need to connect Out_1 and Out_2 to Vcc