SBOA544 May   2022 TRF1208

 

  1. 1Understanding the Benefits Differential Signaling
  2. 2Why are Baluns Commonly Used?
    1. 2.1 Downfall of Baluns at Low Frequencies
  3. 3Why use a Fully Differential Amplifier?
  4. 4Summary

4 Summary

Baluns can be beneficial by allowing for differential signaling, eliminating common-mode noise without filtering, isolating the ports, providing decent SNR performance and suppressing even-order harmonic distortion products (HD2). A TI differential amplifier such as the TRF1208 can provide the same competitive performance as a balun, and often better performance than a combined gain block paired with a balun solution. In addition, it provides a gain component and a reduction in IC BOM count in the RF signal chain.