Introducción
This manual provides detailed instructions for the DKARDU DC 5V-12V Mini Microphone Amplifier Board. This module is designed to amplify audio signals from various microphone types, including electret, condenser, and moving coil microphones, for output to speakers. It is suitable for a wide range of audio projects and applications.
Imagen: Más alláview of the DKARDU Mini Microphone Amplifier Board kit, including two amplifier modules, two electret microphones, and two power cables.
¿Qué hay en la caja?
El paquete incluye los siguientes componentes:
- 2 x DC 5V-12V Micro Electret Amptableros lificadores
- 2 x Electret Microphones
- 2 x DC Female Power Pigtail Cables
Presupuesto
Especificaciones técnicas detalladas para el ampmódulo elevador:
| Parámetro | Valor |
|---|---|
| Vol de funcionamientotage | 5V-12V DC (Voltage below 5V will significantly reduce sound; do not exceed 15V) |
| Corriente de funcionamiento | 1mA (static) ~ 150mA (max) |
| Output Speaker Impedance | 4 Ω - 32 Ω (Higher impedance results in higher efficiency) |
| Supported Speaker Power | 0.5W-25W (Any power speaker can be used, volume is not directly proportional to speaker power, as long as it's greater than amplifier output rating) |
| Potencia máxima de salida | 750 mW |
| Soporte de entrada | Electret microphone, condenser microphone, moving coil microphone, audio signal |
| Dimensiones (LxAnxAl) | 20 x 12 x 6 mm / 0.79 x 0.47 x 0.23 pulgadas |
Imagen: Detallada view del amplifier board highlighting its key parameters.
Imagen: Dimensiones de la ampPlaca elevadora, mostrando su tamaño compacto.
Configuración
Siga estos pasos para configurar correctamente su ampplaca elevadora:
- Conecte el micrófono: Use a shielded cable to connect the electret microphone to the 'IN' and 'GND' terminals of the amplifier board. Pay close attention to the polarity of the electret microphone; incorrect polarity will result in very low or no sound.
- Conecte el altavoz: Connect your speaker to the 'OUT' terminals of the amplifier board. Ensure the speaker is positioned away from the microphone to prevent self-excited noise (feedback).
- Conecte la electricidad: Connect a DC power supply (5V-12V) to the positive and negative terminals of the amptablero más duradero. WARNING: Do not reverse the polarity of the power supply, as this will damage the module.
Image: A clear wiring diagram illustrating how to connect the DC power supply, microphone, and speaker to the amptablero más duradero.
Instrucciones de funcionamiento
Once properly set up, the amplifier board will begin to amplify the audio signal from the connected microphone. The module supports various microphone types and can be integrated into different audio systems.
- Ajuste de volumen: The board features a small potentiometer (labeled 'VOL') for adjusting the output volume. Use a small screwdriver or appropriate tool to carefully turn the potentiometer to achieve the desired volume level.
- Compatibilidad de entrada: El amplifier is designed to work with electret, condenser, and moving coil microphones, as well as general audio signals.
Imagen: La amplifier board, illustrating its compatibility with electret, microphone, condenser microphone, moving coil microphone, and general audio signals.
Imagen: Examples of different applications and wiring configurations for the amplifier board, demonstrating its versatility.
Mantenimiento
To ensure the longevity and optimal performance of your DKARDU Mini Microphone Amplifier Board, consider the following maintenance guidelines:
- Mantener seco: Protect the module from moisture and liquids, as water can cause short circuits and damage components.
- Limpiar suavemente: Si es necesario limpiarlo, utilice un paño suave y seco. Evite el uso de productos químicos agresivos o materiales abrasivos.
- Tratar con cuidado: The board contains delicate electronic components. Avoid dropping or subjecting it to strong impacts.
- Almacenamiento adecuado: When not in use, store the module in a cool, dry place, away from direct sunlight and extreme temperatures.
Solución de problemas
Si tiene problemas con su ampPlaca elevadora, consulte los siguientes problemas y soluciones comunes:
- Very Little or No Sound:
- Check the polarity of the electret microphone connection to the 'IN' and 'GND' terminals. Reversing the polarity will significantly reduce or eliminate sound.
- Asegúrese de que la fuente de alimentación voltage is within the 5V-12V range. Voltage below 5V will result in significantly reduced sound.
- Verify all connections are secure and correct according to the wiring diagram.
- Self-Excited Noise (Feedback):
- Ensure the speaker is positioned sufficiently far away from the microphone to prevent audio feedback.
- Check for proper shielding of the microphone cable.
- Module Not Functioning / Damaged:
- Verify that the DC power supply polarity is correct. Reversing the positive and negative connections will burn out the module.
- Asegúrese de que el volumen de entradatagy no supere los 15V.
Image: Important notes for the amplifier board, emphasizing correct wiring and power supply to prevent damage and ensure proper function.
Garantía y soporte
For warranty information and customer support, please refer to the documentation provided with your purchase or contact DKARDU customer service through the retailer where the product was acquired. Keep your proof of purchase for any warranty claims.
