XH-M422 TPA3116D2 Bluetooth U-Disk TF Player Stereo Digital Audio Amplifier Board 2x50W
Dual Channel Stereo
مرجع داخلي:
KIT.AMP.M422.TPA3116.50W
XH‑M422 TPA3116D2 Bluetooth Amplifier Board (2×50 W, Bluetooth/U‑Disk/TF Player, 12–24 V DC)
Description:
High-efficiency stereo amplifier module using the TPA3116D2 Class‑D chip. Supports Bluetooth 4.2 streaming, USB flash drive (U‑disk), and TF card audio playback. Compact and fully integrated with protection features for easy installation in DIY speaker and audio projects.
Key Features:
- Dual-channel output: 50 W × 2 (at 12–24 V, 4 Ω load)
- Bluetooth 4.2 wireless input (approx. 10–20 m range)
- Supports MP3, WAV, APE, FLAC formats via USB or TF card
- Low distortion (THD ≤ 0.1%), high signal-to-noise ratio (SNR ≥ 100 dB)
- Wide input voltage: DC 12–24 V
- Multi-input operation: automatic source priority (Bluetooth → TF/U‑disk)
- Onboard protections: over-temperature, over-current, short-circuit, DC offset protection
- Compact PCB: approx. 73 × 68 × 16 mm; weight: ~42 g
- Easy connectivity via screw terminals and media ports
Technical Specifications:
Feature | Specification |
---|---|
Model | XH‑M422 |
Amplifier Chip | TPA3116D2 (Class‑D) |
Bluetooth | Version 4.2, ~10–20 m range |
Power Supply | DC 12–24 V |
Output Power | 50 W per channel (dual stereo) |
Speaker Impedance | Supports 4 Ω – 8 Ω |
Audio Formats | MP3, WAV, APE, FLAC |
Frequency Response | 20 Hz – 20 kHz |
THD | ≤ 0.1% |
SNR | ≥ 100 dB |
Protection | Overheat, over-current, short, DC detect |
PCB Dimensions | ~73 × 68 × 16 mm |
Weight | ~42 g |
Usage Notes:
- Connect a clean 12–24 V DC supply ensuring adequate current (2–3 A per channel).
- Use screw terminals for speaker connections ensuring correct polarity.
- Bluetooth pairing voice prompts confirm mode selection; media playback automatically switches when U‑disk or TF card is inserted.
- Ideal for portable speaker builds, car audio systems, and home DIY audio setups.
- For highest output levels, ensure proper heat dissipation; enclosures may raise internal temperature.
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