Features:
Working voltages: 2.5V-5.5V. Attention: The power supply voltages should not exceed 5.5V, and the positive and negative terminals of the power supply should not be reversed.
Speaker configuration: 4-8Ω, recommended: 4ohm; Speaker power: 2-8W.
It can power by computer USB port 5V power supply, a mobile phone charger USB port 5V power supply, or lithium battery power supply.
Under high efficiency of 90%, 4Ω load and 5V power supply conditions, it can provide 3W (left channel)+3W (right channel) output power.
D-class amplifiers have high efficiency, do not affect sound quality due to temperature rise, and do not require heat sinks, occupying small space.
The amplifier board with build-in noise reduction circuit, and there is no popped noise when the power is turned down; The module with shortcircuit overcurrent protections and over temperature protections.
Specifications:
Material: ABS+Metal
Color: Green
Size: approx. 20.5x18.4mm/0.8x0.72inch
Quantity: 10pcs/set
Application: LCD TV, monitors, laptop, portable speaker, portable players, game consoles, mobile phones
Package Includes:
10Pcs PAM8403 Digital Amplifier Board Module
note:
Connect the speaker first and then the power supply, otherwise it may cause damage to the chip.
Please allow 1-2cm errors due to manual measurement.
Please allow for slight color differences due to different display resolution.
