Quad LVDS driver for high-speed serial links
This part is designed for point-to-point baseband data transmission over controlled-impedance media of about 100 Ω, where the low-voltage differential swing (typically 350 mV) keeps EMI low and power dissipation modest.
At 630 Mbps each channel can serialize a 24-bit RGB video stream at 60 Hz with embedded syncs, or aggregate multiple lower-speed data lines into one differential pair. The 4:1 channel density means one SN75LVDS391DR replaces four single-channel drivers, saving board area and reducing per-link cost. The driver outputs are current-mode, so termination is simply a 100 Ω resistor across the receiver inputs — no external bias network needed.
Supply and temperature — fit for indoor equipment
If the design sees extended temperature, the SN65LVDS391 (industrial grade) is the natural upgrade path.
For new designs this is a clean choice; for existing BOMs it means no urgent last-time-buy planning is needed.