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Designing a Line-Out Amplifier for TRS/phone connector

  1. Mar 9, 2016 #1
    I have a signal that comes from a computer of phone line-out and I would like to amplify or apply analog filters. I am not sure what considerations I need to make in the design. What type of load should I present to the phone? What are the signal levels? Input or output impedance? Is there a DC bias? How much power do I need to provide to the computer speakers? Are there any other considerations with stereo (unbalance) TRS connectors/cables? I would like to design a simple amplifier first.
  2. jcsd
  3. Mar 9, 2016 #2


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