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Regarding layout consideration for cascade amplifier chain

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Maitry07

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Hello support Team,

I am planning to use 2 cascade IF gain block amplifiers in my RF front end chain before RF-ADC . and I have 4 simultaneous ADC for which I am planning to use 4 similar RF Front end at the input of 4 RF-ADC inputs.

So, What would be the feasible option to have All 4 similar RF Front end cascade amplifiers chains in single PCB or to have 4 different PCB for each individual RF-ADC input channels? In order to have the highest possible isolation between the channels.
I have attached the block diagram for your reference.

As My RF-ADC has proper isolation between the near channels. But In order to have a highest possible isolation between the RF Front end chains-4 similar. What consideration needs to be done.
Note: My all 4 RF inputs having same frequency but different amplitudes.

kindly suggest your views and guidance.
 

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  • block diagram for ex. RF front end PB.png
    block diagram for ex. RF front end PB.png
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