I'm using the EV-ADF4159EB3Z board with EVAL-HMC587LC4B to make a prototype of my project.
I set the VCO output frequency to 2800MHz, hoping to get an RFout at 5.6GHz.
I'm using the on board loop filter.
When I set LOL to 0, I get a logic high(1.75v) at MUXOUT. So I suppose the loop has been locked?
The problem is I can't get any out when I couple the VCO RFOUT to an antenna.
I have tested that the coupler, the amplifier and the antenna are all working fine.
Any hints? Thanks!