PCM1808 Audio ADC Converter Module – Stereo Analog to I2S

The PCM1808 Audio ADC Converter Module is a compact, high-performance stereo analog-to-I2S signal adapter designed for electronics enthusiasts, students, and engineers. Whether you're building a DSP project, experimenting with digital audio systems, or integrating audio capture into a microcontroller platform, this module delivers clean, reliable analog-to-digital conversion in a small, easy-to-use form factor.

Why Choose the PCM1808 Audio ADC Converter Module?

• Stereo Analog to I2S Conversion: Converts stereo analog audio signals into the I2S digital format, making it compatible with a wide range of microcontrollers, FPGAs, and DSP systems.
• PCM1808 Chipset: Built around Texas Instruments' trusted PCM1808 audio ADC chip, renowned for low noise, high dynamic range, and excellent signal integrity.
• Compact & Breadboard-Friendly: Measures just 5×4 cm (2×1.6 in), making it ideal for prototyping, student projects, and space-constrained builds.
• Durable Construction: Combines a sturdy plastic base with a metal-reinforced PCB for long-lasting performance in lab and field environments.
• Easy Integration: Standard I2S output pins allow seamless connection to Arduino, Raspberry Pi, ESP32, STM32, and other popular development platforms.
• Vibrant Green PCB: High-visibility green PCB makes identification and wiring straightforward during complex builds.

Product Specifications

• Chipset: PCM1808
• Signal Type: Stereo Analog Input → I2S Digital Output
• Materials: Plastic + Metal (PCB)
• Dimensions: 5 × 4 cm / 2 × 1.6 in
• Color: Green
• Interface: I2S
• Compatible With: Arduino, Raspberry Pi, ESP32, STM32, DSP boards, and more

Ideal Applications

• DIY audio recording and processing projects
• Student and university electronics experiments
• DSP algorithm development and testing
• Microcontroller-based audio capture systems
• Hobbyist sound analysis and visualization builds

For more information on digital audio standards and signal processing fundamentals, visit the NIST Electronics Resources — a trusted reference for electronics and measurement standards.

Frequently Asked Questions

Q: What does the PCM1808 Audio ADC Converter Module do?

A: The PCM1808 Audio ADC Converter Module takes a stereo analog audio signal (such as from a microphone or line-level source) and converts it into a digital I2S (Inter-IC Sound) signal. This digital output can then be fed directly into microcontrollers, FPGAs, DSP chips, or single-board computers like the Raspberry Pi or ESP32 for further processing, recording, or analysis.

Q: What microcontrollers or platforms is the PCM1808 module compatible with?

A: This module is compatible with a wide range of popular development platforms that support the I2S interface, including Arduino (with I2S support), Raspberry Pi, ESP32, STM32, and most FPGA development boards. Its standard pin layout makes wiring and integration straightforward for both beginners and experienced developers.

Q: What are the physical dimensions and materials of this module?

A: The PCM1808 Audio ADC Converter Module measures 5 × 4 cm (approximately 2 × 1.6 inches) and is constructed from a combination of plastic and metal-reinforced PCB. The green PCB color also makes it easy to identify among other components in your project.

Q: Is this module suitable for student and educational projects?

A: Absolutely. Its compact size, standard I2S output, and easy-to-use design make it an excellent choice for electronics students, hobbyists, and educators working on audio experiments, DSP coursework, and microcontroller-based projects.