PS9821-1-AX - CEL

PS9821-1-AX Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the PS9821-1-AX?
  CEL recommends a 4-layer PCB with a solid ground plane, and the use of vias to connect the ground pins to the ground plane. Additionally, keep the input and output traces separate and as short as possible to minimize noise and EMI.
• How do I ensure the PS9821-1-AX is properly biased for optimal performance?
  The PS9821-1-AX requires a bias voltage of 5V ± 10% on the VCC pin, and a bias current of 10mA to 20mA. Ensure that the bias voltage is stable and noise-free, and that the bias current is within the recommended range.
• What is the maximum operating temperature range for the PS9821-1-AX?
  The PS9821-1-AX is rated for operation from -40°C to +85°C. However, it's recommended to derate the device's performance at temperatures above 70°C to ensure reliable operation.
• How do I troubleshoot issues with the PS9821-1-AX, such as oscillation or instability?
  CEL recommends checking the PCB layout, ensuring proper biasing and decoupling, and verifying that the input and output impedances are matched. Additionally, use a spectrum analyzer to check for oscillations and noise, and consult the application notes and technical support resources provided by CEL.
• Can the PS9821-1-AX be used in a switching power supply application?
  Yes, the PS9821-1-AX can be used in switching power supply applications, but it's essential to ensure that the device is properly biased and that the input and output filters are designed to minimize noise and EMI. Consult the application notes and technical support resources provided by CEL for specific guidance.