The PAM8403 is a 3W+3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction using a low voltage supply.
The new filterless architecture allows the device to drive a speaker directly, requiring no low-pass output filters, thus saving cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins.Well suited for portable applications.
Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load)
Good sound quality
Can use computer USB for power supply directly. Double panel wiring solves crosstalk
Super mini design allows it to be easily placed in a variety of digital products.
3W Output at 10% THD with a 4ΩLoad and 5V Power Supply
Filterless, Low Quiescent Current and Low EMI
Low THD+N
Superior Low Noise
Efficiency up to 90%
Short Circuit Protection
Thermal Shutdown
Technical Specifications
Model V71
Operating Voltages: 2.5V to 5.5V
Features: Mini amplifier board with compact size, high output power and HD audio.
Amplifier IC: PAM8403
Load : Can direct drive 4 or 8 ohm small speakers
Dimensions: 0.83 in x 0.71 in x 0.12 in (2.1 cm x 1.8 cm x 0.3 cm)
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