AFBR-5978Z datasheet by Avago Technologies

AFBR-5978Z Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the AFBR-5978Z?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. The device should be placed near the edge of the board to minimize signal reflections. A 50-ohm microstrip transmission line should be used to connect the device to the antenna.
• How do I ensure the AFBR-5978Z is properly biased for optimal performance?
  The device requires a single 3.3V power supply. A 10uF capacitor should be connected between the VCC pin and the GND pin to filter out noise. A 1kohm resistor should be connected between the EN pin and the VCC pin to enable the device.
• What is the maximum operating temperature range for the AFBR-5978Z?
  The device is rated for operation from -40°C to +85°C. However, the optimal operating temperature range is from 0°C to 70°C for maximum performance and reliability.
• How do I troubleshoot issues with the AFBR-5978Z?
  Use a spectrum analyzer to check the transmitted signal spectrum and ensure it meets the required specifications. Check the device's power supply and biasing to ensure they are within the recommended range. Use a logic analyzer to check the device's control signals and ensure they are correct.
• Can the AFBR-5978Z be used in a multi-device configuration?
  Yes, the device can be used in a multi-device configuration. However, each device should have its own antenna and transmission line to prevent signal interference. The devices should be spaced at least 10mm apart to prevent electromagnetic interference.