PAM8803 IC which offers 64-step digital volume control and low THD+N, allowing it to produce high-quality sound reproduction. This board can be powered by 2 to 3 AA batteries or DC2.5V to 4.0V via a terminal block. Audio signal can be input via 2510 connector or 3.5mm headphone jack. In addition, this board still remains the features of AA-AB32131, such as over/under voltage turn off, over current protection, etc., and can be used to drive passive 4Ω or 8Ω speakers. Volume control is available via on-board buttons or an external rotary encoder daughter board.
Features:
Size: 74.40 (L) × 54.80 (W) × 18.00 (H) ±0.2mm
A perfect "Class D" architecture
Miniature and high quality
Full-bridged stereo output
64-step gain adjustment
Frequency response: 20Hz to20KHz(±3dB)
Signal/Noise Ratio: 85dB (f=22Hz to 22KHz, THD=1%)
High Output Power
1.2W @ 8Ω, < 10.0% THD+N
2.0W @ 4Ω, < 10.0% THD+N
High Efficiency
85% @ 1.2W 8Ω
88% @ 2.0W 4Ω
Audiophile Quality Sound
0.19% THD+N @ 0.5W 8Ω
0.17% THD+N @ 1.0W 4Ω
Mounting holes facilitate installation and fixing
Several wiring methods facilitate connection
Excellent heat dissipation eliminates the requirement of an extra heat sink
Over/under voltage turn off
Over current protection
Over temperature protection
Over 90% components are SMT based, which are reliable and environment-friendly
Ideal for DIY and industrial applications
Applications：
- Home Active Speaker
- Home Theater Receiver
- Multi-channel Distribution
- Active DVD System
- Mini/micro Systems
