SLLSFQ4A September 2022 – March 2023 THVD1424
PRODUCTION DATA
When connecting a node to the bus, the distance between the transceiver inputs and the cable trunk, known as the stub, should be as short as possible. Stubs present a non-terminated piece of bus line which can introduce reflections as the length of the stub increases. As a general guideline, the electrical length, or round-trip delay, of a stub should be less than one-tenth of the rise time of the driver, thus giving a maximum physical stub length as shown in Equation 1.
where
THVD1424 can be used in both slow-speed and high-speed networks with SLR pin configurability. Slew rate limiting makes the driver output rise/fall time slower so that stub lengths can be increased.