The recommended layout and routing for the MAX3421EEHJ+T involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the USB traces. It's also recommended to use a common mode filter and a ferrite bead to reduce EMI.
The MAX3421EEHJ+T has a built-in suspend and resume functionality. To handle it, you need to connect the SUSPEND pin to the system's suspend signal, and the RESUME pin to the system's resume signal. You also need to ensure that the system's USB bus is properly configured to handle suspend and resume events.
The MAX3421EEHJ+T supports USB 2.0 high-speed data transfer rates, which allows for a maximum cable length of 3 meters (10 feet) for standard USB cables.
To configure the MAX3421EEHJ+T for low-power operation, you need to enable the low-power mode by setting the LP bit in the USB_CTRL register. You can also reduce the power consumption by disabling the internal regulator and using an external power supply.
The MAX3421EEHJ+T has a maximum junction temperature of 150°C. To ensure reliable operation, it's recommended to keep the device temperature below 125°C. You can use thermal pads or heat sinks to dissipate heat and reduce the junction temperature.
MAX3421EEHJ+T datasheet
by Maxim Integrated Products
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