Features
1. Wide voltage range: support DC 8~24V input, suitable for a variety of power supply environments, to ensure stable output.
2. High-efficiency Class-D amplifier: adopts PWM modulation technology, high efficiency, low heat generation, suitable for long time use.
3. multiple power options: provide 10W, 20W, 30W output power, adapt to the needs of different application scenarios.
4. strong compatibility: support 4Ω and 8Ω speakers, adapt to 30W~300W power speakers, high flexibility. 5. compact appearance: the appearance of the product is small.
5. Compact appearance: the product appearance size is only 26mm*22mm, easy to integrate into different projects and application scenarios.
Specification
Product Name：Digital Amplifier Module
Product Model: AP3001
Operating voltage: DC 8~24V
Operating mode: Class D (PWM modulation)
Number of channels: mono
Signal Input: Default single-ended (can be changed to differential) input
Input impedance: 1kΩ
Output Load: 4-8Ω
Output Power (@1KHz).
30W @16V 4Ω
20W @12V 4Ω
10W @12V 8Ω
15W @16V 8Ω
25W @24V 8Ω
Adaptable Speaker (30W~300W).
4Ω (8-16V power supply)
8Ω (8-24V powered)
Size: 26mm*22mm
Notes for use:
1, the recommended supply voltage DC 8 ~ 24V, more than 26V, the chip will burn.
2, connected to the 4Ω speaker when the power supply does not exceed 16V, connected to the 8 ohm speaker when the power supply does not exceed 24V.
3, power supply current recommended 2A or more.
4, the positive and negative poles of the power supply can not be reversed, reverse chip burned; this module is only applicable to single power supply, can not be connected to the negative power supply.
5, to ensure that the input audio signal in the 0.5V ~ 1.5V
6, the speaker line should not be too long, to ensure that 1 metre or less appropriate
7, pay attention to static protection, contact the amplifier board before the need to release the hand of static electricity, to avoid static electricity will be the amplifier chip breakdown, digital amplifier is more sensitive to static electricity.
8, it is recommended that the use of speakers rated power 30W and above, to avoid burning the speaker heat!
Troubleshooting.
1, after powering up the speaker ‘poof’ a sound after no response
(1) check whether the speaker impedance is too small, and the supply voltage is too high, the instantaneous high current makes the chip into the DC protection; try to reduce the supply voltage to restart.
(2) check whether the power supply power is too small to carry the speaker, try to replace the high-power power supply, general 2A power adapter is not a problem.
2、 Playing music with ‘ZiZi’ murmur
1) Replace the audio source to see if it is the noise that comes with the audio source itself.
2) Ground the input of the amplifier to see if it is the problem of the amplifier itself.
(3) the use of shielded audio cable, whether it is the quality of the cable to introduce noise
4） Replace the speakers, whether it is the problem of the speakers themselves.
5） Replace the power supply, whether the power supply is unstable to introduce the noise
3、 Speaker playback process heat and smoke
1) speaker power is too small, replace the high-power speakers or reduce the signal input
Package includes
1 x Module
