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LM4811 headphone amplifier layout

Swati Singh
Prodigy 20 points
Other Parts Discussed in Thread: LM4811

What is the recommended placement for input and output capacitors at Vin and Vout pins respectively?

  • 0
    TI__Intellectual 1240 points

    Hello Swati-san,

    Thank you for having interesting with LM4811. I'll make some comment about input/Output cap placement. Both caps for Input caps are better to place as close as device input pin and Output cap is as well. Vin pin is also better to place input cap. The most important thing is GND line routing. 1 point GND routing is good for signal GND and device GND and output current flow GND line should be separated and no common GND routing is important. Please reffere to LM4811 datasheet pg 16 to pg 18. you can see LM4811 EVM PCB pattern layout.

    Best regards

    T NAOKAWA