I'm looking at a design that uses a serial input DAC with the data from a P=
IC micro.=A0 The reference design shows the micro ground tied to the DAC di=
gital ground (makes sense of course), and what appears to be a single groun=
d point from the remainder of the analog grounds back to the micro ground (=
single point).

So I am assuming that

1. power source is common on the board, so it should go thru a ferrite bead=
/cap to prevent noise in/out between the two circuits.

2.=A0 The DAC analog grounds should be an island with a single connection b=
ack to the digital ground, preferably tied on the bottom of the board under=
neath the digital control signals.

Anything else?


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