AEDR-8500-102 - Avago Technologies

AEDR-8500-102 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal management for optimal performance?
  Broadcom recommends a 4-layer PCB with a solid ground plane, and thermal vias under the device to dissipate heat. A thermal pad on the bottom of the device should be connected to a thermal plane on the PCB.
• How do I ensure signal integrity and minimize EMI in my design?
  Use a differential pair for clock signals, keep high-speed signals away from the edge of the PCB, and use a common mode filter or ferrite bead to reduce EMI. Also, ensure that the PCB stack-up is optimized for signal integrity.
• What is the recommended power-up sequence for the AEDR-8500-102?
  Power up the device in the following sequence: VCC, then AVCC, and finally DVCC. Ensure that the power supplies are stable and within the recommended voltage range before applying clock signals.
• How do I troubleshoot issues with the device's JTAG interface?
  Check the JTAG clock frequency, ensure that the TCK pin is not left floating, and verify that the JTAG signals are not corrupted by other signals on the PCB. Also, use a JTAG debugger or a logic analyzer to debug the issue.
• What is the maximum operating temperature range for the AEDR-8500-102?
  The device is rated for operation from -40°C to 85°C. However, the device's performance and reliability may degrade if operated at the extreme ends of this range.