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Audio Amplifier(LM4673) with Input 90mW and 8 Ohm Impedance

Other Parts Discussed in Thread: LM4673, TPA6211A1-Q1, LM48100Q-Q1, TPA2000D1-Q1, TPA2005D1-Q1

Hi Team, 

I am using LM4673 for my design with following use case:

Module can support only RL= 32 Ohm with 90mw so to amplify this I am using power amplifer LM4673. Is it suitable for 90mw input and 1W output with 8ohm.

I need atleast 0.5 mtr of audible range, so am using a 1W @ 8 Ohm speaker.

You can suggest any other best amplifier which will be suitable for my use case.

 

  • Hi Varsha

    Welcome to E2E, thank you for your interest in our products.
    Could you please provide me more details about your application to give better support?

    Best regards
    Jose Luis Figueroa
    Audio Applications Engineer | A-Team
  • Hi Figueroa

    My project is based on a Vehicle Tracker Device. In this device there will be one speaker and mic which will be used during emergency, so I want to amplify the audio signals so that It can be heard upto 0.5 meter.

    So, kindly suggest me an amplifier which can easily meet all my requirements.

  • Hi Varsha

    This device could work well in your application, but you could take a look to the following devices TPA6211A1-Q1, LM48100Q-Q1,
    TPA2005D1-Q1 and TPA2000D1-Q1. These devices are designed for Automotive applications.

    Best regards
    Jose Luis Figueroa
    Audio Applications Engineer | A-Team