PAM8610 Digital Amplifier Board Documentation

Supply Voltage

5V to 15V

Output Power

10W per channel (16 load)

Digital Audio Input

I2S (16-bit, 24-bit, or 32-bit)

Analog Audio Output

Stereo (L/R)

Frequency Response

20Hz to 20kHz

Total Harmonic Distortion (THD)

0.1% at 1W output power

Efficiency

Up to 92%

Operating Temperature

-40C to +85C

Applications

The PAM8610 Digital Amplifier Board is suitable for a wide range of applications, including

IoT projects (smart speakers, smart home systems)

Robotics and automation

Consumer electronics (portable speakers, soundbars)

Automotive audio systems

Industrial control systems

Conclusion

The PAM8610 Digital Amplifier Board is a high-performance, compact audio amplifier module that offers efficient, low-distortion audio amplification for a wide range of applications. Its features, including digital audio input, built-in DC volume control, and thermal overload protection, make it an ideal choice for developers and engineers building innovative IoT projects and other audio-centric systems.

Pin Configuration

PAM8610 Digital Amplifier Board Pinout Explanation
The PAM8610 Digital Amplifier Board is a compact, high-performance audio amplifier module designed for a variety of applications, including IoT projects. This document provides a detailed explanation of the board's pins and their functions, as well as guidance on how to connect them.
Pinout Structure:
The PAM8610 Digital Amplifier Board has a total of 16 pins, arranged in two rows of 8 pins each. The pins are labeled as follows:
Row 1:
1. VIN (Voltage Input):
Function: Power supply input for the amplifier board.
Recommended voltage range: 4.5V to 24V DC.
Connection: Connect to a suitable power source, such as a battery or a DC power adapter.
2. GND (Ground):
Function: Ground connection for the amplifier board.
Connection: Connect to the negative terminal of the power source or a common ground point.
3. EN (Enable):
Function: Enables or disables the amplifier output.
Recommended voltage range: 0V (disabled) to 3.3V (enabled).
Connection: Connect to a digital output pin of a microcontroller or a logic-level signal.
4. SCL (Serial Clock):
Function: Clock signal for I2S (Inter-IC Sound) communication.
Connection: Connect to the SCL pin of an I2S-enabled microcontroller or audio codec.
5. SDA (Serial Data):
Function: Data signal for I2S communication.
Connection: Connect to the SDA pin of an I2S-enabled microcontroller or audio codec.
6. LRCK (Left-Right Clock):
Function: Clock signal for I2S communication, indicating the start of a left or right audio channel.
Connection: Connect to the LRCK pin of an I2S-enabled microcontroller or audio codec.
7. BCLK (Bit Clock):
Function: Clock signal for I2S communication, governing the data transmission rate.
Connection: Connect to the BCLK pin of an I2S-enabled microcontroller or audio codec.
8. DIN (Digital Input):
Function: Digital audio input signal.
Connection: Connect to the digital audio output pin of an I2S-enabled microcontroller or audio codec.
Row 2:
1. L+ (Left Positive Speaker Terminal):
Function: Positive terminal for the left audio channel speaker connection.
Connection: Connect to the positive speaker wire of the left audio channel.
2. L- (Left Negative Speaker Terminal):
Function: Negative terminal for the left audio channel speaker connection.
Connection: Connect to the negative speaker wire of the left audio channel.
3. R+ (Right Positive Speaker Terminal):
Function: Positive terminal for the right audio channel speaker connection.
Connection: Connect to the positive speaker wire of the right audio channel.
4. R- (Right Negative Speaker Terminal):
Function: Negative terminal for the right audio channel speaker connection.
Connection: Connect to the negative speaker wire of the right audio channel.
5. NO (No Connection):
Function: No internal connection; reserved for future use or custom applications.
Connection: Leave unconnected.
6. NC (No Connection):
Function: No internal connection; reserved for future use or custom applications.
Connection: Leave unconnected.
7. VMID (Voltage Midpoint):
Function: Half-supply voltage output, useful for biasing or other applications.
Connection: Connect to a capacitor or a voltage regulator input, depending on the specific application.
8. GND (Ground):
Function: Ground connection for the amplifier board ( duplicates Row 1, Pin 2).
Connection: Connect to the negative terminal of the power source or a common ground point.
Important Notes:
Ensure proper power supply decoupling and filtering to prevent noise and interference.
Use suitable speaker impedance and power rating to avoid overheating or damage to the amplifier board.
Consult the datasheet and application notes for specific configuration, gain setting, and thermal management recommendations.
When using the I2S interface, ensure proper signal timing, voltage levels, and impedance matching to prevent data corruption or errors.
By following this pinout explanation and connection guide, you can successfully integrate the PAM8610 Digital Amplifier Board into your IoT project or custom audio application.

Code Examples

PAM8610 Digital Amplifier Board Documentation

Overview

The PAM8610 Digital Amplifier Board is a compact, high-performance audio amplifier module designed for IoT applications. It is based on the PAM8610 digital amplifier IC, which provides high-quality audio output with low power consumption. This board is suitable for use in various IoT projects, such as smart home automation, robotics, and wearable devices.

Technical Specifications

Output Power: 2 x 10W (4, 10% THD+N)
 Input Interface: I2S (24-bit, 44.1 kHz to 192 kHz)
 Supply Voltage: 2.5V to 5.5V
 Quiescent Current: < 10mA
 Operating Temperature: -40C to 85C

Connections and Pinout

The PAM8610 Digital Amplifier Board has the following pins:

VCC: Power supply input (2.5V to 5.5V)
 GND: Ground
 SIN: I2S input (data)
 SCK: I2S input (clock)
 LRCK: I2S input (left-right clock)
 SPK+: Output positive terminal (left channel)
 SPK-: Output negative terminal (left channel)
 SPK+: Output positive terminal (right channel)
 SPK-: Output negative terminal (right channel)

Code Examples

### Example 1: Using the PAM8610 with an Arduino Board

This example demonstrates how to use the PAM8610 Digital Amplifier Board with an Arduino board to play a simple audio file.
```cpp
#include <Arduino.h>
#include <PAM8610.h>

#define PAM8610_I2SCLK 13
#define PAM8610_I2SDAT 11
#define PAM8610_LRCK 12

PAM8610 amplifier(PAM8610_I2SCLK, PAM8610_I2SDAT, PAM8610_LRCK);

void setup() {
  amplifier.begin();
}

void loop() {
  // Play a simple audio file ( mono, 16-bit, 44.1 kHz )
  const unsigned char audioData[] = {
    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
    0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
    // ...
  };

amplifier.play(audioData, sizeof(audioData));
  delay(1000); // Play for 1 second
}
```
### Example 2: Using the PAM8610 with a Raspberry Pi (Python)

This example demonstrates how to use the PAM8610 Digital Amplifier Board with a Raspberry Pi to play a simple audio file using Python.
```python
import pyaudio
import numpy as np

# Initialize PyAudio
p = pyaudio.PyAudio()

# Open the I2S stream
stream = p.open(format=pyaudio.paInt16,
                channels=2,
                rate=44100,
                output=True,
                frames_per_buffer=1024)

# Create a sine wave audio signal ( mono, 16-bit, 44.1 kHz )
frequency = 440  # Hz
length = 1  # second
sample_rate = 44100
t = np.linspace(0, length, int(sample_rate  length), False)
wave = np.sin(frequency  t  2  np.pi)

# Play the audio signal
stream.write(wave.astype(np.int16).tobytes())

# Close the I2S stream
stream.stop_stream()
stream.close()
p.terminate()
```
Note: These examples are for demonstration purposes only and may require modifications to work with specific IoT projects.

Datasheet and Resources

For more information about the PAM8610 Digital Amplifier Board, please refer to the datasheet and resources provided by the manufacturer.

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