This link below will be very useful and it also differentiates and purpose of coupling both the grounds.For subsequent queries relate to that,there are other links too or simply search in the edaboard itself,you shall get many articles.
as far as i know ferrite beads contain a lot of inductance and ground bounce is mainly due to surge of current through inductance.... how would connecting analog ground and digital ground using inductance be a good solution.... pls explain...
I visited that post.... i found that another person had specified ferrite beads but the justification against the inductance has not been given there....
i think the above post explains things well.... because digital ground is gonna experience high frequency disturbances due to the switching and inductive beads would take care of that.... the separate decoupling capacitor would take care of the low frequency behaviour.....
create a part that is basically a short, (SMT resistor with pads shorted) connecting Agnd & Dgnd to each pad wont throw up an error in your CAD program but will provide the short needed.
It obviously gets left out of all pick & place programs etc.
OR do it with a zero ohm link component, that way when fault finding the link can be removed.