MAX3323EEUE+T datasheet by Maxim Integrated Products

MAX3323EEUE+T Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the MAX3323EEUE+T to minimize EMI?
  A good PCB layout for the MAX3323EEUE+T involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the connector. Additionally, using a common-mode choke and shielding can help reduce EMI.
• How do I ensure the MAX3323EEUE+T is properly terminated for high-speed signals?
  To ensure proper termination, use a 50Ω termination resistor in series with the signal line, and a 50Ω pull-up resistor to VCC or GND, depending on the signal type. Also, use a low-inductance path to the termination resistor to minimize signal reflections.
• What is the maximum cable length supported by the MAX3323EEUE+T?
  The MAX3323EEUE+T can support cable lengths up to 10 meters (33 feet) at data rates up to 100 Mbps, and up to 5 meters (16 feet) at data rates up to 400 Mbps, assuming a good quality cable and proper termination.
• How do I handle hot-swapping with the MAX3323EEUE+T?
  To handle hot-swapping, use a external power switch or a power controller with overcurrent protection to prevent damage to the device. Also, ensure that the device is powered down before disconnecting the cable, and use a soft-start circuit to prevent inrush currents.
• What is the recommended power-up sequence for the MAX3323EEUE+T?
  The recommended power-up sequence is to power up the device's VCC pin first, followed by the VBUS pin. This ensures that the device is properly initialized and configured before the USB bus is powered up.