MAX4660EUA+ datasheet by Maxim Integrated Products

MAX4660EUA+ Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the MAX4660EUA+ to minimize EMI?
  A good PCB layout for the MAX4660EUA+ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, use a shielded cable for the USB connection and keep the USB traces away from the analog signals.
• How do I ensure the MAX4660EUA+ is properly powered and what are the power sequencing requirements?
  The MAX4660EUA+ requires a single 3.3V power supply. Ensure that the power supply is stable and well-regulated. The power sequencing requirement is to power up the 3.3V supply before the USB_VBUS signal. The device is enabled when the 3.3V supply is above 2.7V.
• What is the maximum cable length supported by the MAX4660EUA+?
  The MAX4660EUA+ supports USB 2.0 high-speed data transfer rates up to 3 meters (10 feet) using a good quality shielded cable. However, the actual cable length may vary depending on the cable quality, noise environment, and system configuration.
• How do I implement the USB suspend and resume functionality with the MAX4660EUA+?
  The MAX4660EUA+ has a built-in USB suspend and resume functionality. To implement it, connect the SUSPEND pin to the system's suspend signal, and the device will automatically enter a low-power state when the system is in suspend mode. The device will resume normal operation when the system resumes.
• What are the thermal management considerations for the MAX4660EUA+?
  The MAX4660EUA+ has a maximum junction temperature of 150°C. Ensure good airflow around the device, and use a thermal pad or heat sink if necessary. Keep the device away from heat sources and ensure that the PCB is designed to dissipate heat efficiently.