MAX1487CSA datasheet by Maxim Integrated Products

MAX1487CSA Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the MAX1487CSA?
  The MAX1487CSA is a high-frequency device, and proper layout and placement are crucial for optimal performance. It is recommended to follow the layout guidelines provided in the datasheet, including keeping the input and output traces short and away from each other, using a solid ground plane, and placing the device close to the power supply.
• How do I ensure the MAX1487CSA is properly biased for optimal performance?
  The MAX1487CSA requires a proper bias voltage to operate correctly. Ensure that the VCC pin is connected to a stable 5V power supply, and the VEE pin is connected to a stable -5V power supply. Also, make sure that the input signals are within the recommended common-mode voltage range.
• What is the maximum data rate that the MAX1487CSA can support?
  The MAX1487CSA is a high-speed RS-485 transceiver that can support data rates up to 10Mbps. However, the actual data rate may be limited by the system design, cable length, and noise environment.
• How do I handle hot swapping or insertion/removal of the MAX1487CSA?
  The MAX1487CSA is designed to handle hot swapping and insertion/removal. However, it is recommended to follow proper hot-swapping procedures, such as ensuring that the power supply is stable and the input signals are within the recommended common-mode voltage range during insertion/removal.
• What is the recommended termination scheme for the MAX1487CSA?
  The MAX1487CSA requires a termination scheme to ensure proper signal integrity. A 120Ω termination resistor is recommended at the far end of the cable, and a 220Ω pull-up resistor is recommended on the DE pin to ensure proper bus biasing.