10PCS 2 Channels 3W Digital power PAM8403 Class D Audio Amplifier Board USB 5V

Description

10PCS 2 Channels 3W Digital power PAM8403 Class D Audio Amplifier Board USB 5V
Product Image:
Product Description:
This is a mini 2 channels 3w amplifier with PAM8403. It is perfect for MP3/MP4/notebook. And you could also power the board with 5V USB power supply.
1. Power supply: DC2.5-5.5 V.
2. Output power: 3W + 3W (4Ω).
3. SNR: 90dB.
4. Efficiency: > 90%.
5. Size: 15.5×24 mm.
NOTE:
1. Single lithium battery or USB power supply is suitable, also can use four sections of 1.5V battery, if use with the transformer power supply,it must add 5V voltage circuit, more than 6V will burn IC out.
2. + and - of power supply can't be reversed, power supply voltage can't be more than 6V, otherwise it will damage the IC.
3. there were high gain buffers, can't change any board device parameters, do not accord with the parameters of the IC will lead to damage.
4. input wire please use shielding wire, can rise anti-interference function, eliminate clutter current sound.
5. output is CMOS BTL drive mode,4 wire is completely independent, don't connect together!
Package Included:
10PCS 2 Channels 3W PAM8403 Class D Audio Amplifier Board
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Warranty
1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem.
2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer.
3. If you are not satisfied with the product, Please contact us. We'll provide you a satisfying solution.
Shipment
1.Normmly we will send the goods within 1-3 working days after your payment is verified .
2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.