SN65LVDS250DBT datasheet by Texas Instruments

SN65LVDS250DBT Frequently Asked Questions (FAQs)

• What is the maximum cable length supported by the SN65LVDS250DBT?
  The maximum cable length supported by the SN65LVDS250DBT is approximately 10 meters (33 feet) at a data rate of 655 Mbps. However, this length can vary depending on the specific application, cable quality, and noise environment.
• How do I terminate the differential lines in the SN65LVDS250DBT?
  The SN65LVDS250DBT requires a 100-ohm differential termination resistor at the receiving end of the differential pair. This termination resistor should be placed as close to the receiver as possible to minimize reflections and ensure signal integrity.
• What is the power consumption of the SN65LVDS250DBT?
  The power consumption of the SN65LVDS250DBT depends on the operating frequency and the load capacitance. Typically, the device consumes around 150 mW of power when operating at 655 Mbps with a 100-ohm load. However, this value can vary depending on the specific application and operating conditions.
• Can I use the SN65LVDS250DBT for non-LVDS applications?
  While the SN65LVDS250DBT is designed for LVDS applications, it can be used for other differential signaling applications with some limitations. However, the device's performance and signal integrity may not be optimal for non-LVDS applications, and additional circuitry or components may be required to ensure reliable operation.
• How do I ensure signal integrity and minimize EMI in my SN65LVDS250DBT design?
  To ensure signal integrity and minimize EMI in your SN65LVDS250DBT design, follow best practices for PCB layout, such as using differential pairs, minimizing trace lengths, and using shielding and grounding techniques. Additionally, ensure that the device is properly terminated, and consider using EMI filters or common-mode chokes to reduce emissions.