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Efficient super mini digital amplifier, to obtain input 5V 6W of power, special internal output processing circuit for maximum power output at a lower voltage , super power , built-in standby electronic switch , built-in high -gain buffer amplifier, built-in short circuit protection. 3.6 to 6V, single-cell lithium battery or USB -powered appropriate, also be four 1.5V batteries, power transformers to add fixed 5V regulator circuit chip will burn more than 6V . Take the USB 5V power supply is recommended to use a single lithium or electricity . Slim board can be very easy to put into a small plastic box or other device in the slot , such as to create MP3 / 4 or small laptop external speakers , etc. , as you imagine .
Special Note :
1. It can not reverse the positive and negative power supply voltage must not exceed 6V, these two violations could result in IC damage.
2. Chip have high- gain buffer , the board can not alter any component parameters do not meet the parameters will result in IC damage.
3. Input line , please try to use a shielded cable , you can play the role of interference , eliminating clutter current sound.
4 Output cmos tube BTL drive, so the speakers can not be connected with the negative , that is connected to the speaker four lines are completely independent, does not allow total access .
|Material||Glass fiber + plastic + iron|
|English Manual / Spec||No|
|Other Features||Power Supply: DC 2.5~5.5V; Output power: 6W; SNR: 90dB; Efficiency: > 90%|
|Dimensions & Weight|
|Dimensions||1.77 in x 0.63 in x 0.59 in (4.5 cm x 1.6 cm x 1.5 cm)|
|Weight||0.25 oz (7 g)|
|1 x Amplifier board|
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|Quantity||3+ units||5+ units||10+ units|
|Rate||US$3.24 shipped||US$3.23 shipped||US$3.21 shipped|
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