SN65220DBVT datasheet by Texas Instruments

SN65220DBVT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a ferrite bead or a 10uF capacitor to filter the power supply.
• How do I ensure reliable communication between the SN65220 and the microcontroller?
  Use a reliable communication protocol like SPI or I2C, and ensure proper signal termination and routing. Also, use a common ground plane and keep the clock signal as short as possible.
• What is the maximum operating temperature range for the SN65220DBVT?
  The SN65220DBVT is rated for operation from -40°C to 125°C. However, it's recommended to operate within a temperature range of 0°C to 85°C for optimal performance and reliability.
• How do I handle ESD protection for the SN65220DBVT?
  Use ESD protection devices like TVS diodes or ESD arrays on the input/output lines. Also, ensure that the PCB design includes a solid ground plane and a separate power plane to reduce ESD susceptibility.
• What is the recommended power supply decoupling for the SN65220DBVT?
  Use a 10uF ceramic capacitor and a 1uF ceramic capacitor in parallel, placed as close as possible to the power pins. This helps to filter the power supply and reduce noise.