PCBWay Ultra-Compact Digital Amplifier Board
Description:
1. Operating Voltage: 2.5V-5.5V. Caution: Ensure the power supply voltage doesn't exceed 5.5V, and maintain correct polarity.
2. Speaker Compatibility: 4-8 ohms, recommended: 4 ohms; Speaker Power: 2-8W.
3. Can be powered via computer USB port (5V), mobile charger USB port (5V), or lithium battery.
4. High efficiency of 90%: Under 4Ω load and 5V power supply, it delivers an output power of 3W (left channel) + 3W (right channel). Class A and Class B amplifiers operate at around 30% efficiency, while Class D amplifiers are highly regarded in today's eco-friendly trend.
5. Class D amplifiers boast high efficiency without compromising audio quality due to temperature rise and don't require heat sinks, occupying minimal space.
6. Built-in noise reduction circuitry: No popping noise during power on/off. The module incorporates short-circuit and over-temperature protection.
7. Board Dimensions: ★★★★ Ultra-Micro Size: 1.85*2.11cm ★★★★
Applications:
LCD TVs, monitors
Laptops
Portable speakers
Portable DVD players, gaming consoles
Mobile/Hands-Free Telephony
Usage Precautions:
Connect the speaker before powering on to avoid potential chip damage.
Due to significant gain in the module's digital volume control, prevent audio signal input from becoming too high, causing signal clipping and limiting.
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