The DS25BR440 is a 3.125 Gbps Quad LVDS buffer opti- mized for high-speed signal routing and repeating over lossy FR-4 printed circuit board backplanes and balanced cables.
The DS25BR440 is a 3.125 Gbps Quad LVDS buffer optimized for high‑speed signal routing and repeating over lossy FR‑4 backplanes and balanced cables. It offers two levels of transmit pre‑emphasis and two levels of receive equalization to maximize noise margin.
The handbook includes a general description, ordering information, pin diagrams, absolute maximum ratings, electrical characteristics (DC and AC), test circuits, physical dimensions, and recommended land patterns, giving designers all data needed for implementation.
| Data Rate | 3.125 Gbps |
|---|---|
| Supply Voltage Range | -0.3 V to +4 V |
| LVDS Output Differential Voltage | 250 mV min / 350 mV typ / 450 mV max |
| Input Termination Resistor | 1000 Ω |
| ESD Protection (LVDS I/O pins) | 8 kV |
| Package Size | 6 mm x 6 mm (LLP‑40) |
The device operates with a supply voltage from –0.3 V to +4 V.
It provides two levels of transmit pre‑emphasis.
The LVDS I/O pins are rated for 8 kV ESD protection.
The package measures 6 mm × 6 mm (LLP‑40).