400 Mbps full-duplex LVDS transceiver for automotive and industrial links
What the 400 Mbps rating means for the link budget
At 400 Mbps the DS90LV049QMT/NOPB handles a 200 MHz clock-embedded or NRZ data stream with enough margin for a few inches of FR4 trace and one connector before the eye starts closing. For a typical automotive camera or radar module link running 12-bit parallel data serialised into one LVDS pair, this transceiver keeps the bit-error rate below 10^-12 without a retimer. The full-duplex architecture means the transmit and receive paths operate simultaneously on separate pairs, so a bidirectional link needs two of these devices or one with both channels active — the 2/2 driver/receiver count supports two independent full-duplex links per package.
The 125°C upper limit covers under-hood ambient plus self-heating in a sealed ECU enclosure, while the -40°C cold soak handles winter cranking and overnight thermal cycling.
Supply rail and package fit
The base product number DS90LV049 covers the commercial and automotive temperature variants, so a cross-reference to the commercial-grade DS90LV049MT/NOPB is possible for non-automotive builds, but the QMT suffix specifically denotes the AEC-Q100 qualified version.