I would like to design a circuit with 2 x HMC797APM5E with 2 x bias controllers (the right one seems to be the HMC980LP4E).
This is my needs :
- Amplify DC to over 20GHz signal
- Input : 0 to 350mV and need an output 0 to 5Vmin (so P1dB min +24dBm)
- Would like the cleanest signal as possible, stay in linearity part.
No single amplifier is capable of doing this Gain for this Band, so I need to do a daisy chain with 2 amplifiers. The HMC797 seems to be the right choice.
I read in documentations and application notes that an active bias controller ensures a proper sequencing, level and security for the amplifier.
The application note AN-1393 is very helpful with some example circuits (http://www.analog.com/media/en/technical-documentation/application-notes/AN-1363.pdf )
What circuits of this application note should I follow to make it work with the HMC797?
Perform a daisy chain using the TRIGOUT of the first HMC980, is this the right thing to do?
What would be your precautions for this kind of circuit?
Thank you very much,