Unlock high-quality audio output for your microcontroller projects with the PCM5102A I2S DAC Decoder Module. This compact, purple GY-module is designed to convert digital audio signals (I2S) into analog stereo sound, featuring a standard 3.5mm headphone jack for direct line-out connection.
Unlike standard PWM audio output found on many microcontrollers, this module utilizes the Texas Instruments PCM5102A chip to deliver crystal-clear, HiFi-grade audio with excellent signal-to-noise ratio. It is perfectly suited for use with Raspberry Pi, Raspberry Pi Pico, ESP32, and Arduino systems that support the I2S interface.
The module handles the Master Clock (MCLK) internally, meaning you only need to connect three I2S wires (Data, Bit Clock, and Word Clock) to get it running, simplifying your wiring significantly.
Key Features:
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High-Quality Audio: Supports 16, 24, and 32-bit audio data formats.
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Internal PLL: Generates its own internal system clock, eliminating the need for an external connection to the SCK pin in most setups.
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Direct Line Out: Integrated 3.5mm gold-plated stereo jack for headphones or amplifiers.
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Wide Compatibility: Works seamlessly with Raspberry Pi (Volumio, Moode Audio), ESP32 internet radio projects, and custom STM32 audio solutions.
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Voltage Flexibility: Operates on standard 3.3V to 5V DC power supplies.
Technical Specifications:
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DAC Chip: PCM5102A
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Interface: I2S (Inter-IC Sound)
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Supply Voltage: 3.3V - 5V DC
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Sampling Rate: Up to 384KHz
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Dynamic Range: 112dB
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Signal-to-Noise Ratio (SNR): 112dB
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Output: 2.1V RMS (Line Level)
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Data Format: I2S, Left-Justified
Pinout Configuration:
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VCC: 3.3V - 5V Power (+)
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GND: Ground (-)
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LCK: LRCK (Word Select / Left-Right Clock)
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DIN: Data In
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BCK: Bit Clock
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SCK: System Clock (Often connected to GND as chip generates this internally)
Package Includes:
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1x PCM5102A DAC Module (Purple Board)
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1x 6-Pin Header Strip
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1x 6-Wire Dupont Cable (Female-to-Female)