AWR2243: AWR2243P:Maximum number of AWR2243P cascade connection

Cruijff, 

There is no explicit limit. 

The only limit is maintaining digital sync trigger and LO delay match and maintaining the LO minimum/maximum input power at each of the LO RX ports. This puts restrictions on PCB routing/cabling mismatch, return loss and insertion loss and external LO amplification. Please see the AWR2243 datasheet for LO input/output power minimums/maximums.

Because the AWR2243 LO has limited output power this restricts entirely passive LO interconnect to somewhere between 4 and 8 devices, depending on the specifics of the PCB routing. 

Thank you,

-Randy