HMC877LC3 simplest design

Discussion created by f.amato@gatech.edu on Dec 11, 2017
Latest reply on Dec 19, 2017 by salemdar
I found two phase shifters working at high frequency:


HMC247 and HMC877LC3.


I am interested to something more like HMC247 since it is very easy and simple, but I would like to avoid using wire bonding to connect it.


For this reason I was looking at the HMC877LC3 but I would like to keep the design simple.

I would then like to ask you:
- is it possible to bias the HMC877LC3 by connecting the VDCP input only?
- can the inputs and outputs be used in a single-ended configuration?

- the evaluation PCB has SMAs to the bias inputs. It there a specific reason for that?