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TPA3123 Class D 2.1 Digital Power Amplifier Board 3 Channel Heavy Bass HIFI Support MP3 Module
The power amplifier board takes 2pcs TPA3123 digital amplifier chip as the core, one is do as left and right channel power amplifier, the other bridges to drive the ultra bass, with small size, high efficiency, high power, etc. The capacitor is WIMA, PHILPS, ruby HIFI capacitor. High-quality potentiometer, original TPA3123 chip, special bass sound effects chip for ST. The board circuit is simple and reliable. The working voltage of single power supply is 12V24V (15V-20V is better). Left and right channel output maximum power is 25WX2, super bass output maximum power is 50W, efficiency can reach more than 90%, can be used to switch power supply of notebook computers, but also very suitable for battery power supply, such as motorcycles, cars, electric cars and so on. Small board size, use and installation are very flexible and convenient. The components all use genuine parts, capable of long-term stable operation.
- Working voltage: DC12-24V (Recommend: 15-20V)
- Maximum output: left and right channel 25Wx2 50W, Heavy bass is 50W
- Input impedance: 10KOhm
- Frequency response: 18Hz-20KHz (+ 3dB)
- Distortion: heavy bass: <2%/DC24V /50W; Left and right channel: 0.05%/DC24V/4, /25W
- Appearance size: length 95mm/ width 65mm/ hight 30mm (does not contain potentiometer handle and other protruding part)
1. Power supply limit voltage is DC24V, please do not exceed this limit, otherwise it may cause the power amplifier board damaged.
2. Bass speakers are recommended with 6-10 inch speakers, the impedance is within 6-8Ohm, 100W ; the left and right channel should be 5 inch with high pitched sound box, the impedance is within 4-8Ohm, 50W.
3. Audio output can not be short circuit or short circuit to ground / power , short circuit long will damage the power amplifier board!
4. MP3 module interface is not designed to prevent the overcurrent circuit, please ensure that the functional pins, power supply voltage and MP3 module function keep consistent.
5. Some desktop computer will have a high voltage leakage phenomenon, leakage voltage will lead to the power amplifier board through the audio line, if there is a need,please install a safety wire on the computer chassis, otherwise it will lead to power amplifier board damage and endanger human body.
6. The board is finished in good welding test one, only need to connect the power source, the horn. The heavy bass should be used with 8Ohm speaker, 5-10 inch, if you use 4ohm speakers, the proposed power supply voltage is 20V. Left and right channel is 4-8Ohm.
- 1 x Class D 2.1 Digital Power Amplifier Board