Response time calculation of AD9364 fast AGC mode

Hardware Platform: Xilinx Zynq 702 and FMCOMMS4

PS platform: Linux

How to calculate the response time of Fast AGC mode from the clkRF beign used. I am using a clkRF of 96MHz. How signal dynamics would this combination of Fast AGC and 96MHz of clkRF support.?

Thanks and regards

Srinivas P,

  • 0
    •  Analog Employees 
    on Oct 20, 2020 12:34 PM 1 month ago

    The counters in AGC are clocked at the clkRF rate. You can take each counters for which the AGC waits in each of the states and then calculate the time depending on how many clkRF cycles the counter waits for. Higher the frequency, faster will be the AGC settling time.

    Also, you can test the fast AGC settling time by switching between two input levels and then checking the time it takes for the output to settle down using spectrum analyzer.