3 Channel Digital Subwoofer Amplifier Board
3 Channel Digital Subwoofer Amplifier Board
The 3 Channel Digital Subwoofer Amplifier Board is a highly integrated audio amplifier module designed for amplifying low-frequency audio signals in digital subwoofer systems. This board is capable of driving up to three subwoofer speakers, making it an ideal solution for home theaters, soundbars, and professional audio applications.
The 3 Channel Digital Subwoofer Amplifier Board is a Class-D amplifier that utilizes advanced digital signal processing (DSP) technology to provide high-quality audio amplification. The board takes in digital audio input signals from a source device, such as a soundbar or AV receiver, and amplifies them to drive up to three subwoofer speakers. The amplifier's digital processing capabilities enable advanced features such as noise reduction, distortion correction, and frequency response optimization.
[insert voltage range, e.g., 12V to 24V]
[insert power rating, e.g., 100W] per channel
| THD+N | [insert THD+N rating, e.g., < 0.1%] |
[insert frequency response range, e.g., 20Hz to 200Hz]
| Signal-to-Noise Ratio (SNR) | [insert SNR rating, e.g., > 90dB] |
[insert operating temperature range, e.g., -20C to 80C]
[insert dimensions, e.g., 100mm x 50mm]
| The 3 Channel Digital Subwoofer Amplifier Board is suitable for various audio applications, including |
Home theaters
Soundbars
Professional audio systems
Automotive audio systems
IoT-based audio devices
The 3 Channel Digital Subwoofer Amplifier Board is a highly versatile and feature-rich audio amplifier module designed for driving multiple subwoofer speakers in digital audio systems. Its compact design, high-efficiency amplifier, and advanced DSP capabilities make it an ideal solution for a wide range of applications.
3 Channel Digital Subwoofer Amplifier Board DocumentationOverviewThe 3 Channel Digital Subwoofer Amplifier Board is a high-performance audio amplifier designed for use in IoT projects, home automation systems, and other applications requiring amplifier functionality. This board features three channels, each capable of delivering up to 20W of power, making it ideal for driving small to medium-sized subwoofers.Technical SpecificationsInput: Digital I2S (Inter-IC Sound)
Output: 3 Channels, each capable of delivering up to 20W of power
Frequency Response: 20Hz - 20kHz
SNR (Signal-to-Noise Ratio): 90dB
Power Supply: 12V - 24V DCConnecting the BoardTo use the 3 Channel Digital Subwoofer Amplifier Board, connect the following:VCC: 12V - 24V DC power supply
GND: Ground connection
I2S_CLK: I2S clock signal
I2S_WS: I2S word select signal
I2S_SD: I2S serial data signal
Channel 1-3: Subwoofer speaker connections (each channel has a positive and negative terminal)Code Examples### Example 1: Basic Audio Playback using ArduinoIn this example, we'll use an Arduino board to play a WAV file through the 3 Channel Digital Subwoofer Amplifier Board.```c++
#include <I2S.h>// Define I2S pins
#define I2S_CLK 13
#define I2S_WS 12
#define I2S_SD 11// Define audio data array
uint16_t audioData[1024];void setup() {
// Initialize I2S pins
I2S.begin(I2S_CLK, I2S_WS, I2S_SD);
// Load audio data from WAV file
loadWAVData(audioData);
}void loop() {
// Play audio data through the amplifier board
for (int i = 0; i < 1024; i++) {
I2S.write(audioData[i]);
}
delay(20); // 20ms delay between audio frames
}void loadWAVData(uint16_t audioData) {
// Load WAV file data into the audioData array
// ... implementation depends on the WAV file format ...
}
```### Example 2: Home Automation System using Raspberry PiIn this example, we'll use a Raspberry Pi to control the 3 Channel Digital Subwoofer Amplifier Board as part of a home automation system.```python
import pygame
import RPi.GPIO as GPIO# Initialize GPIO pins
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT) # I2S_CLK
GPIO.setup(23, GPIO.OUT) # I2S_WS
GPIO.setup(24, GPIO.OUT) # I2S_SD# Initialize PyGame for audio playback
pygame.init()
pygame.mixer.init()# Load audio file
pygame.mixer.music.load("audio_file.wav")# Play audio file through the amplifier board
while True:
pygame.mixer.music.play()
while pygame.mixer.music.get_busy():
# Generate I2S clock signal
GPIO.output(18, GPIO.HIGH)
GPIO.output(18, GPIO.LOW)
# Generate I2S word select signal
GPIO.output(23, GPIO.HIGH)
GPIO.output(23, GPIO.LOW)
# Send audio data through I2S serial data signal
for i in range(1024):
GPIO.output(24, GPIO.HIGH if (audioData[i] & 0x8000) else GPIO.LOW)
GPIO.output(24, GPIO.LOW if (audioData[i] & 0x8000) else GPIO.HIGH)
```Note: These code examples are simplified and may require modification to suit your specific use case. Additionally, ensure proper wiring and power supply connections to avoid damage to the board or connected components.