Is LM3886 good?

Note: Editable PCB files are available for this project here. The LM3886 is one of the most highly regarded audio chip amplifiers in the DIY community. The reason for its popularity is due to its very low distortion, minimal external components, and low cost.

What is Thiele network?

The main function of the Thiele network is to isolate the external load capacitance, Cload, from the amplifier output at HF. Rerunning the PM, GM vs Cload simulation with the Zobel and Thiele networks added, the following results are obtained.

What is Gainclone amplifier?

Gainclone or chipamp is a type of audio amplifier made by do-it-yourselfers, or individuals interested in DIY audio. It is a design based on high-power integrated circuits, particularly the National Semiconductor Overture series.

What is LM3886?

The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz.

How many watts increase dB?

To produce an increase of +3 dB you simply need to double power (watts). So, if you are getting 102 dB SPL from 100 watts and you want 105 dB SPL, you will need 200 watts of power.

Do you need a Zobel network?

Member. Zobel network is needed to correct some instabilities of the amplifier, because of (imprevisible) phase variations caused by wires or/and crossovers, drivers, etc. Problems are occuring at high fréquencies (10 Mhz or so…), and cause some sound harshness.

What is Zobel network used for?

Zobel networks were formerly widely used in telecommunications to flatten and widen the frequency response of copper land lines, producing a higher performance line from one originally intended for ordinary telephone use. Analogue technology has given way to digital technology and they are now little used.

What is lm3886tf?

Description. chevron-down. The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz.