2 Channels Digital Amplifier Board 3W Output Power 2.5V - 5V Voltage Regulator
1pcs PAM8403 module Super mini digital amplifier board 2 *3W 2.5 to 5V
Features:
- Can use 5V battery or any USB port to power.
- D class amplifier is highly respected today because its 90% high efficiency. A class, B class amplifier efficiency is only about 30%.
- Temperature does not affect the sound quality so no need to add heat sink therefore less space is taken.
- Module has a short-circuit current protection and over-temperature protection.
- Noise canceling circuit was built in, power on / off without pop noise.
- Can provide 3W (left channel) + 3 W (right channel) output power in the 4Ω load and 5V power supply conditions.
Specifications:
| Model | PAM8403 |
| Super Mini Size | 1.85 x 2.15cm |
| Input voltage | 2.5-5V (can not be more than 5.5V, otherwise it will burn the IC on board) |
| Output power | 2 channels x 3W |
| Speaker Choice | It can work with 4 ohm and 8 ohm speakers, recommend 4 ohms |
| Net weight | 7g |
Connection Diagram
Circuit Diagram
Dimension Photo
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