In the datasheet, it is mentioned that the module with combination of EVM can be used in two applications.
Application Option 1: Fixed negative gate biasing with pulsed drain biasing.
Application Option 2: Pulsed negative gate biasing with pulsed drain biasing.
I am trying to design both applications on a single board. The second option for future use.
For the 1st application option, he has mentioned a few pins as No connection and he has used those NC pins on the 2nd application.
The issue I am facing:-
They have used voltage followers for providing a low impedance output path for pin number 3(GCO). I have reverse-engineered the Ckt from the below-attached image, but I am unable to identify the voltage follower they have used.
Pin number 2 of the voltage follower has been connected to pin number 2 (NC/GCP) of the Module. There has been no description of this pin number.
I am guessing these:-
- Pin numbers 1 and 4 are connected together and output is provided through them.
- Pin number 5 is +Ve supply hence connected to GND(Highest +Ve supply)?
- Pin number 3 is connected to -8V
- Pin number 2 is connected to pin number 2 of MABC-001000-DP000L, which I am unable to understand.
I have mailed component manufacturer regarding full schematic, till now I haven't heard from them.
Can anybody help me with this?
Thanks in Advance.