Hello,I have a question about SOURCE PROFILE register of AD9542.The SOURCE PROFILE 0 to 3 are settings for reference input each.I could understand how to use these.The SOURCE PROFILE 4 and 5 are settings for NCOx , and SOURCE PROFILE 5 and 6 are settings for DPLLx.They has same parameters as SOURCE PROFILE 0~3.I can not understand why these registers has same parameters as SOURCE PROFILE 0~3.What purpose of these registers ?How to use these SOURCE PROFILE 4~6 registers ?Best regards,y-suzuki
first I want to point out that the AD9542 and the AD9544 do not have auxiliary NCOs and auxiliary TDCs. The AD9543 and AD9545 have them.
The source profiles refer to the DPLL sources. Please do not…