A good PCB layout for the DS22EV5110SQE/NOPB involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the clock signal traces. Additionally, it's recommended to use a low-ESR capacitor for the power supply decoupling.
To ensure proper termination, use a 50-ohm termination resistor in series with the signal line, and a 50-ohm termination resistor to ground in parallel with the signal line. This will help to reduce signal reflections and improve signal integrity.
The recommended power-up sequence is to apply the analog power supply (AVCC) first, followed by the digital power supply (DVCC). This ensures that the analog circuitry is powered up before the digital circuitry, which helps to prevent any potential latch-up conditions.
To handle thermal management, ensure good airflow around the device, and consider using a heat sink or thermal pad to dissipate heat. Additionally, avoid blocking the airflow around the device, and ensure that the PCB is designed to dissipate heat efficiently.
The recommended clock signal quality is a low-jitter, high-frequency clock signal with a frequency range of 100 MHz to 1.5 GHz. The clock signal should have a rise time of less than 1 ns and a fall time of less than 1 ns.
DS22EV5110SQE/NOPB datasheet
by Texas Instruments
