sharkies
Member level 5
I have a question on the reference frequency crystal that is used for the PLL and baseband logics. In integrated transeivers with both RF and baseband modem circuits on the same chip, do they use a single crystal? For instance, PLL uses a crystal for the reference clock. Is this same crystal used for the baseband as well? or is there another crsytal for the baseband.
Thank you.
Thank you.