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  • LM4853: Shutdown pop and click

    Part Number: LM4853 I'm designing a device that uses the SHUTDOWN function on this chip to suppress noise coming from other circuits. By shutting down the amp, these noises are not heard in the speaker. Now my problem is that when I enable the amp by…
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  • LM4853: How important is a 20k input resistance?

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    Part Number: LM4853 I'm using the LM4853 in my design, but I already use 18k resistors elsewhere. To keep the BOM count down, I planned to use 18k instead of 20k for the input resistors Ri. Will this have any noticeable impact on audio quality or performance…
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  • LM4853: Adding 1k resistor between right output and ground (as in the datasheet) causes huge inrush current

    Part Number: LM4853 Other Parts Discussed in Thread: TPS62056 I'm using an LM4853 in a portable device, powered from 4x AA batteries. This goes to a buck converter down to 3.3V, 800mA output (TPS62056), and then a boost converter to 5V, 1.5A output…

  • TPS61202: Load regulation above max value when driving audio

    Part Number: TPS61202 Other Parts Discussed in Thread: LM4853 , Hello, I am using a TPS61202 to supply 5V to an audio circuit (utilizing the LM4853). I'm following the reference schematic in the TPS61202 datasheet: 2.2uH inductor with 2A saturation current…

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