CDCE925PWRG4 datasheet by Texas Instruments

CDCE925PWRG4 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the CDCE925PWRG4?
  Texas Instruments provides a recommended PCB layout in the CDCE925PWRG4 datasheet, but it's also recommended to follow the general guidelines for high-frequency PCB design, such as using a solid ground plane, minimizing trace lengths, and using decoupling capacitors.
• How do I configure the CDCE925PWRG4 for a specific clock frequency?
  The CDCE925PWRG4 can be configured using the TI Clock Design Tool or by using the device's register settings. The tool allows you to select the desired clock frequency, and it generates the necessary register settings. You can also refer to the device's datasheet for more information on register settings.
• What is the maximum input clock frequency that the CDCE925PWRG4 can handle?
  The maximum input clock frequency that the CDCE925PWRG4 can handle is 250 MHz. However, the device can also be used with input frequencies up to 350 MHz with some limitations on the output frequency range.
• Can the CDCE925PWRG4 be used in a system with multiple power domains?
  Yes, the CDCE925PWRG4 can be used in a system with multiple power domains. The device has separate power supply pins for the core and output stages, allowing it to operate with different power domains. However, it's essential to ensure that the power supplies are properly decoupled and filtered to prevent noise and interference.
• How do I troubleshoot issues with the CDCE925PWRG4, such as clock jitter or instability?
  To troubleshoot issues with the CDCE925PWRG4, start by verifying the device's configuration and register settings. Check the input clock signal quality, power supply noise, and PCB layout. Use oscilloscopes or signal analyzers to measure the output clock signal quality and jitter. Texas Instruments also provides application notes and technical support resources to help with troubleshooting.