The DP83815DUJB is an Ethernet controller integrating a 10/100 Base-T/TX PHY with a PCI host interface, providing a single-chip solution for network connectivity in embedded and PC applications.
Housed in a 160-ball LBGA (15x15 mm), the DP83815DUJB demands a multi-layer PCB with controlled impedance traces for the PCI bus and differential pairs for the Ethernet magnetics. The 160-LBGA package has a 1.0 mm ball pitch — fan-out on a 4-layer board is straightforward, but the inner balls require via-in-pad or microvias for dense routing.
It is marked RoHS non-compliant, so it contains lead in the solder balls or plating, which may restrict use in EU RoHS-exempt or non-exempt assemblies.