CY7B9920-5SI datasheet by Cypress Semiconductor

CY7B9920-5SI Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with CY7B9920-5SI?
  The maximum clock frequency for CY7B9920-5SI is 200 MHz. However, it's recommended to check the specific application and system requirements to ensure the clock frequency is within the recommended range.
• How do I implement clock domain crossing (CDC) with CY7B9920-5SI?
  Cypress provides a Clock Domain Crossing (CDC) application note (AN54444) that provides guidelines and examples for implementing CDC with CY7B9920-5SI. It's recommended to follow the guidelines and use the provided IP cores to ensure proper CDC implementation.
• What is the recommended termination scheme for CY7B9920-5SI?
  The recommended termination scheme for CY7B9920-5SI is to use a 50-ohm termination resistor on the output pins. This ensures proper signal integrity and minimizes reflections. However, the specific termination scheme may vary depending on the system requirements and PCB layout.
• Can I use CY7B9920-5SI in a PCIe application?
  Yes, CY7B9920-5SI is PCIe-compliant and can be used in PCIe applications. However, it's recommended to follow the PCIe specification and Cypress's PCIe application notes to ensure proper implementation and compliance.
• How do I handle power-up and power-down sequencing with CY7B9920-5SI?
  Cypress provides a power-up and power-down sequencing application note (AN54445) that provides guidelines for proper power-up and power-down sequencing with CY7B9920-5SI. It's recommended to follow the guidelines to ensure proper device operation and prevent damage.