PI3USB221EZWEX datasheet by Diodes Incorporated

PI3USB221EZWEX Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the PI3USB221EZWEX?
  A good PCB layout for the PI3USB221EZWEX involves keeping the signal traces short and away from noise sources, using a solid ground plane, and placing the device close to the USB connector. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
• How do I ensure electromagnetic compatibility (EMC) with the PI3USB221EZWEX?
  To ensure EMC with the PI3USB221EZWEX, follow proper PCB layout guidelines, use a shielded USB connector, and add EMI filtering components such as ferrite beads or common-mode chokes to the USB data lines.
• What is the maximum cable length supported by the PI3USB221EZWEX?
  The PI3USB221EZWEX supports USB 2.0 high-speed signals up to 3 meters (10 feet) in length, but the actual cable length may vary depending on the specific application and cable quality.
• Can I use the PI3USB221EZWEX in a USB 3.0 or USB 3.2 application?
  The PI3USB221EZWEX is a USB 2.0 device and is not compatible with USB 3.0 or USB 3.2 applications. For USB 3.0 or USB 3.2 applications, consider using a USB 3.0 or USB 3.2-specific device.
• How do I handle power management with the PI3USB221EZWEX?
  The PI3USB221EZWEX has an internal power management system that automatically switches between bus-powered and self-powered modes. However, external power management may be required depending on the specific application and power requirements.