Hi,
For AWR1243 cascade design, there are two 20G LO sync in/out shown as below figure. Below is my understanding, pls help correct me if any error.
The signal from FMCW_CLKOUT and FMCW_SYNCOUT are full same, any pin can be used for sync out.
Signal to FMCW_SYNC1 and FMCW_SYNC2 will have different delay, all cascade chips should use the same pin for sync in.
There is on recommended pin combination in SWR574 as below. In my opinion the combination of D1&B1, B15&D15 are also fine, right?