LM3886 High Performance Audio Amplifier Board

LM3886 High Performance Audio Amplifier Board (Assembled)

This assembled amplifier board is designed for high-fidelity mono audio amplification using the LM3886 IC.

Output Power:

• Continuous output power: up to 68 W (with low distortion, depends on supply voltage, load, and heat dissipation)
• Instantaneous peak output power: up to 135 W

Performance:

• Total Harmonic Distortion + Noise (THD + N): approximately 0.1% from 20 Hz to 20 kHz (depends on operating conditions)
• Signal-to-Noise Ratio (SNR): approximately 92 dB

Working Voltage:

• Dual supply: ±18 V to ±35 V DC
• Recommended transformer: 18-0-18 VAC to 25-0-25 VAC (step-down)

Protection Features:

• Output short-circuit protection (to ground or supply rails)
• Internal current limiting
• Over-voltage protection against transients from inductive loads

Configuration:

• Amplifier IC: LM3886
• Fully assembled board
• Requires proper heat sinking for continuous operation

Construction:

• Uses through-hole components

Intended Use:

• High-fidelity audio amplification
• Home audio systems and speaker applications
• Subwoofer and full-range speaker amplification
• DIY and custom audio system integration