Dear, All
I have a question about the capacitor connected to the power pin of the DP83867IR.
There is a difference in the capacity value of the capacitor described in the DP83867IR data sheet.
It is described below in the terminal list.
· VDDIO -> Each pin requires 1uF and 0.1uF
· VDDA 1 P 8 -> Each pin requires 1 u F and 0.1 μF
· VDDA2P5 -> Each pin requires 1uF and 0.1uF
· VDD 1 P 1 -> Each pin requires 1 nF and 0.1 μF
It is described below in "Figure 32. Three Supply Configuration" of data sheet P117.
· VDDIO -> Each pin requires 1uF and 0.1uF
· VDDA 1 P 8 -> Each pin requires 1 u F and 0.1 μF
· VDDA2P5 -> Each pin requires 1uF and 0.1uF
· VDD1P1 -> Each pin requires 1uF and 0.1uF
Also, the circuit diagram of "DP83867 User's Guide" is as follows.
· VDDIO -> Each pin requires 1 nF
· VDDA 2 P 5 -> Each pin requires 1 nF
· VDD 1 P 1 -> Each pin requires 1 nF
Please tell me which is correct.
What I would like to know most is whether a 1 uF capacitor is required if there is a large capacitor on the power supply side.
Thanks, Masami M.
