16-SOIC footprint and board-fit
The DS90LV048ATM/NOPB comes in a 16-SOIC package with a 3.90 mm body width — the standard narrow SOIC footprint that places without tombstoning risk on a typical 0.050-inch pitch land pattern. The 1.27 mm lead pitch gives the assembler enough room for a decent solder fillet, and the package coplanarity is well within the 0.10 mm JEDEC spec for the SOIC family.
400 Mbps LVDS receive path
This is a four-channel LVDS receiver that converts differential 400 Mbps data streams back to single-ended CMOS levels — the kind of signal-conditioning block you drop between a high-speed serial backplane and a parallel bus controller. Each of the four receivers handles a separate LVDS pair, so a single DS90LV048ATM/NOPB can terminate a 4-lane link or four independent point-to-point channels.
That covers the usual factory-floor and outdoor telecom enclosure ambient, though the junction temperature inside a 16-SOIC at 400 Mbps switching stays modest because the per-channel quiescent draw is low.