Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital traces separate. Additionally, use a common mode choke and ferrite beads to filter out high-frequency noise.
Use a 100-ohm differential termination resistor at the receiver end, and ensure the transmission line impedance is matched to the device's output impedance (typically 100 ohms). Also, use a termination network with a common mode choke and capacitors to filter out common mode noise.
The maximum cable length depends on the data rate and cable characteristics. As a general guideline, for data rates up to 100 Mbps, the maximum cable length is around 10 meters. For higher data rates, the cable length should be shorter to maintain signal integrity.
To ensure safe hot swapping, use a power-on reset circuit to reset the device when the power is applied. Also, use a fault-tolerant design to handle unexpected voltage or current surges during hot swapping. Additionally, consider using a dedicated hot swap controller IC to manage the power sequencing and voltage monitoring.
The AM26LV31CDRE4 has a maximum junction temperature of 150°C. To prevent overheating, ensure good thermal conduction by using a heat sink or a thermal pad, and keep the device away from other heat sources. Also, follow the recommended PCB layout and thermal design guidelines to minimize thermal resistance.
AM26LV31CDRE4 datasheet
by Texas Instruments
