The MAX3420EETG requires careful layout and routing to ensure proper operation. Maxim provides a recommended layout and routing guide in the application note AN2151, which includes guidelines for PCB design, component placement, and signal routing.
The MAX3420EETG has a SUSPEND pin that can be used to put the device into a low-power state. To handle suspend and resume signals, connect the SUSPEND pin to the USB host's suspend signal, and use the device's internal pull-up resistor to pull the SUSPEND pin high when the device is not in suspend mode.
The MAX3420EETG supports USB 2.0 high-speed data transfer rates, which have a maximum cable length of 3 meters (10 feet). However, the actual cable length may be limited by the quality of the cable, the signal integrity, and the system's noise environment.
The MAX3420EETG has several power-saving features, including a low-power mode that can be enabled by setting the PMODE pin high. Additionally, the device can be put into a shutdown mode by setting the SHDN pin low. Refer to the datasheet for more information on configuring the device for low-power operation.
The MAX3420EETG requires a 12MHz crystal oscillator to operate correctly. The device has an internal PLL that multiplies the crystal frequency to generate the required clock frequencies for USB operation.
MAX3420EETG datasheet
by Maxim Integrated Products
