Earphone Amplifier Based on NE5532+TPA6120

NE5532+TPA6120 Earphone Amplifier

Open source: GPL 3.0

1 Positive and negative double power input, LM317 and LM337 linear voltage stabilizer chip, voltage adjustable, TVS protective device, and power supply slow start are added in the power supply.

2 Ear amplifier adopts input of 3.5mm headphone interface, the output of 6.35mm headphone interface, two-stage amplification, 2 times of NE5532 amplification, 1 time of TPA6120 amplification.

3 The actual capacitance can be chosen according to the situation, the test function can be used, the effect is very good with low sensitivity earphone

All the schematic files are edited by EasyEDA, It is a free Online PCB design Tool which can generate Gerber files to JLCPCB, you can get your PCB sample manufactured by $2 for 5 pcs.

All the manufacture files enclosed can be modified if there is anything need to be modified.