I'm DFAE in Japan. I received a couple of questions about ADF7242 from my customer. The customer uses GFSK SPORT mode and data rate is 2Mbps.
1) Should we use 500ns for I/F clock(tsym) in this case?
2) Should we send the serial data of I/F by MSB first or LSB first?
I checked the datasheet but I couldn't find the information about them.
If it's 2GFSK, the symbol rate and data rate should be the same, which means the symbol period is (1/2MHz) = 500 ns. Binary data is transmitted and received MSB first.
Please note that parts such as the ADF7242 have their own forum on EngineerZone (Low Power RF Transceivers, not RF & Microwave). I've moved this post for you.