This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • Resolved

TL3472-Q1: Alternative device for LM2904-Q1?

Part Number: TL3472-Q1

Hello Team,

 As same case as the thread below “LM2904 crossover distortion happens”, my customer is evaluating LM2904 and struggled by cross-over distortion.

https://e2e.ti.com/support/amplifiers/etc_amplifiers__other_linear/f/18/p/628539/2322166?keyMatch=LM2904&tisearch=Search-JP-Support

 Application circuitry is shown below, similar to the one of above thread.

  

As lower-price, rail-to-rail and non-crossover distortion device, can we recommend TLV3472-Q1?

Best regards,

  • Nobuo,

    TL3472-Q1 is a good choice for this circuit.
    I didn't notice this is the other thread, but T1 has collector and emitter swapped.

    What is the purpose for R4 and R6?

    If the load is always terminated to ground like R10 is connected. Then you do not need R2, D1, D2, R3, T1 or R1. These components support sinking current drive.

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

  • In reply to Ron Michallick:

    Hi Ronald,

    Thanks a lot for your prompt support.

    Sorry for making confusion, the load is not a pure resistance as shown R10, but 75 ohm impedance  for 10kHz output signal.

    Best regards

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.