Part Details for WJLXT971ALE.A4 by Cortina Systems Inc

The recommended PCB layout involves placing the device near the edge of the board, using a 4-layer stack-up with a solid ground plane, and ensuring good thermal conductivity. A thermal pad on the bottom of the device should be connected to a thermal relief pattern on the PCB. A heat sink or thermal interface material can be used to improve heat dissipation.

To ensure signal integrity and minimize EMI emissions, use differential signaling, keep signal traces short and away from noise sources, and use shielding or guard traces to reduce radiation. Additionally, follow proper PCB layout guidelines, use EMI filters or common-mode chokes, and ensure proper grounding and decoupling.

The WJLXT971ALE.A4 requires a specific power sequencing and reset protocol to ensure proper operation. The recommended power-up sequence is VCC, then AVCC, followed by a 10ms delay before asserting the reset signal. The reset signal should be held low for at least 10ms to ensure a clean reset.

The WJLXT971ALE.A4 requires a stable clock source, and clock domain crossing (CDC) techniques should be used to ensure data integrity when crossing clock domains. Use a clock buffer or clock generator to provide a clean clock signal, and implement CDC techniques such as synchronizers or FIFOs to handle clock domain crossings.

The WJLXT971ALE.A4 requires separate analog (AVCC) and digital (VCC) power supplies. The analog supply should be filtered and decoupled to minimize noise, while the digital supply should be decoupled and bypassed to reduce noise and ensure reliable operation.