Hi i'm trying to use ADL5511, in a AGC loop.
I'm trying to test just the ADL5511 chip now. I'm applying sine wave at different power levels using a sig gen and using the Vrms output pin to measure the output. Please see the pic attached.
I do have a 75 ohms connected between pin 2 and ground.
I have a 33 nF at pin 14 (FLT 4), 100 pF at pin 3 (FLT 3).
I'm applying signals from a signal generator from -5 dBM to 15 dBm directly to pin 2.
The output at Vrms is always at ~1.7 V for that range. I have pin 1 and 16 (FLT 2 and FLT 3) unconnected.
I have the enable high.
I'm not sure what im doing wrong. Any tips on how to trouble shoot ?