Ultra-small Two-channel 3w High-power Usb-powered Mini Digital Amplifier Board For Sale
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two-channel 3W high-power USB-powered mini digital amplifier board for mp3 mp4 notebook #1200021
[3 x 2] 6W of power at 5V input
The power supply is recommended to take the USB-5V or a single lithium-powered.
Power: 3.6 to 5.5V, single-cell lithium battery or USB power supply suitable and can also be used four 1.2V battery-powered, when use transformer power supply, be sure to add a 5V regulator circuit, more than 5.5V chip will burn.
1: the power positive and negative electrodes cannot be reversed, the supply voltage does not exceed5.5V, these two contrary will cause IC damage.
2: the film has high gain buffer, can not change the board of any element parameter, does not correspond to the parameters will lead to IC damage.
3: Please input line with shielding line, can play a role of anti interference, eliminate the clutter current sound.
4: the output for the CMOS BTL driver around the horn pipe, negative cannot be connected together, which is connected with a horn4 lines are completely independent, does not allow access!
1x amplifier board
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If you have any problem about payment , please contact us.
Item will be shipped within 3 working days after full payment is received. We ship worldwide with flat rate shipping by post Air mail, the shipment usually takes 15-45 business days .
We can also provide express post by EMS(5-8 days) or UPS(4-5 days). The cost is higher thanstandard postage, extra shipping fees is needed. if you need express post please contact us !
We will leave positive response to buyer as soon as buyer pays for the item .Your satisfaction is our first priority. Please leave us positive response upon satisfaction of the item. Please email us before leaving negative and neutral response. We will try our best to solve the issue. We will leave positive response to buyer as soon as buyer pays for the item .
we do try respond as quickly as possible. Due to time zone difference, please allow 12~24 hours to get your mail replied.If you have any questions, Please contact with usvia message or ourcustomer service e-mail .thanks for your buying ,wishes you have a happy shopping from our shop !
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Ultra-small Two-channel 3w High-power Usb-powered Mini Digital Amplifier Board : $2