SRF2040 datasheet by Taiwan Semiconductor

SRF2040 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF traces as short as possible and use 50-ohm impedance matching to minimize signal reflections.
• How do I ensure reliable communication in noisy environments?
  Implement frequency hopping and error correction mechanisms, such as FEC (Forward Error Correction) and CRC (Cyclic Redundancy Check), to improve data integrity and reliability in noisy environments.
• What is the maximum transmission power and how do I adjust it?
  The maximum transmission power is +20 dBm. You can adjust the transmission power by programming the PA (Power Amplifier) control register to optimize power consumption and range.
• How do I implement antenna diversity to improve reception?
  Use two antennas, one for transmission and one for reception, and switch between them using an antenna switch or a SPDT (Single-Pole Double-Throw) switch to improve reception and reduce multipath effects.
• What is the recommended crystal oscillator frequency and how do I ensure its stability?
  The recommended crystal oscillator frequency is 26 MHz. Ensure stability by using a high-quality crystal oscillator with a low ESR (Equivalent Series Resistance) and a stable power supply, and by implementing a PLL (Phase-Locked Loop) to compensate for frequency drift.