What this LVDS receiver does on the board
The DS90C402MX is a dual-channel LVDS receiver from Texas Instruments, handling data rates up to 155.5 Mbps per channel. It converts differential LVDS signals from a twisted-pair or PCB trace into a single-ended CMOS output that your logic can read directly. Supply range is 4.5V to 5.5V, so it runs cleanly off a standard 5V rail without needing a separate regulator.
Package and field-swap reality
No fine-pitch, no exposed pad, no BGA. If you have a soldering iron and some wick, you can swap this on site without a hot-air station.
Production status and ordering
Note that this variant is marked RoHS non-compliant. If your BOM requires RoHS-10/lead-free, check the DS90C402M or DS90C402M/NOPB suffix — those are the lead-free equivalents in the same package and pinout.