You can also check out this video to see a quick overview of the design process. Sound quality is severely compromised when the SPiKe circuitry is enabled, so to prevent this we need a heat sink with a thermal resistance low enough to dissipate the maximum power dissipated by the LM Setting it too low might make your amplifier too quiet. I decided on a gain of around 27 db
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Mute capacitance set up to create a large time constant for turn-on and turn-off muting. L 1 Provides high impedance at high frequencies so that R may decouple a highly capacitive load and reduce the Q of the series resonant circuit due to capacitive load. Also provides a low impedance at low frequencies to short out R and pass Provides power supply filtering and bypassing. Mute switch that mutes the music going into the amplifier when opened.
Refer to Application Information for more information. Interaction may occur for components whose reactances are in close proximity to one another. One example would be the coupling capacitor, CC, and the compensation capacitor, Cf.
These two components act as low impedances to certain frequencies which will couple signals from the input to the output. Please take careful note of basic amplifier component functionality when designing in these components.
The optional external components shown in Figure 3 and described above are applicable in both single and split voltage supply configurations.
A Complete Guide to Design and Build a Hi-Fi LM3886 Amplifier