Dear ADI

1. Is RX sample rate = symbol rate at RXFIR ouput ?

2. Is the length of "power measurement duration" equal to "power measurement update interval"?

For example, if Power Meas Duration = 64, will my power measurement result update every 64 RX sample

periods?

If the above two are true, then I have the following question.

During AGC state 5,Gain lock exit count running at CLKRF(61.44MHz in my case) and is equal to 8x2=16

Does that mean gain will unlock if the measured power exceed the threshold longer than 16 x 1/61.44 = 0.26 us?

My Power Meas in State 5 = 256 , which means power value update every (256 x 1/61.44)=4.16us?

It's weird to me that timeout for gain unlock is much shorter than power value update interval, I'm confused.

the following is my setup

ADC clock=491.52MHz

HB3 = decimated by 2

HB2 = decimated by 2

HB1 = decimated by 2

RXFIR = decimated by 1

thank you~

1. True only if decimation factor is 1, otherwise FIR rate = decimation factor * IQ sample rate.

2. Yes the length of power measurement duration = power measurement update rate.

Your calculation for duration is correct. In this case the gain lock exit count is much less compared to power measurement duration However this counter will help when you set very short power measurement duration.