I have to implement an AGC circuit that can take inputs from -96dBm to 0dBm and give an output of -20dBm to -55dBm, while maintaining a PAPR of 4.5dB at a frequency of 350MHz and while maintaining linearity in whole chain. I have selected AD8368 and I am going to use two of these AGCs in series. If the input is -96dBm then I can set both AGCs at full gain and if the input level is 0dBm then I can set both AGCs in attenuation.
Can I perform the above mentioned operation with AD8368 ? How does the setpoint of AGC work in this application ? Can I get an application note which can help me in designing the circuit for my application ? If I can not perform this task with AD8368 then what are my options, or even if I can, is there a better option than this configuration ? I have ordered the evaluation kit to get practice before I start designing the circuit. Can I get a user guide or datasheet of evaluation board of AD8368 ?
Do let me know if you need information from me to better answer my question. Any kind of help will be greatly appreciated.
Yes, your idea sounds reasonable. You can model linearity in our ADISimRF tool as well.
The product page gives several design resources, including the circuit note here: