Sure Electronics AA-AB41167 UCM-PCM2706C USB to S/PDIF I2S Analog DAC Signal Converter

Highlights of the Sure Electronics AA-AB41167

• USB stereo audio DAC with both single-ended analog and S/PDIF outputs
• Powered by the reliable Texas Instruments PCM2706C IC with full-speed USB 2.0 support
• Reverse polarity protection and robust construction for enhanced safety and longevity
• Flexible connectivity options including USB Type-C, JST PH connectors, and standard 3.5 mm audio jack

Product details Sure Electronics AA-AB41167

Sure Electronics AA-AB41167 stereo audio DAC module

Designed with compact dimensions of 76.2 mm x 50.8 mm x 19.1 mm and a lightweight build of just 25 g, the UCM-PCM2706C is ideal for space-constrained setups and portable audio systems. It features both USB Type-C and external JST PH USB connectors for flexible power and data input, and supports a 5V DC supply directly from the USB bus. The board is equipped with multiple output options, including a single-ended analog output via a 3.5 mm jack or JST PH 5-pin connector, as well as S/PDIF and I2S digital outputs, accommodating a broad range of audio components and devices.

Performance-wise, the UCM-PCM2706C delivers crisp, high-fidelity sound conversion. It boasts a signal-to-noise ratio of up to 95 dB, total harmonic distortion as low as 0.017%, and supports audio resolutions of up to 16 bits at 32, 44.1, and 48 kHz sampling rates. With wide operating temperature tolerance from -20°C to 65°C and certified by both FCC and CE, this DAC ensures stable and consistent operation in diverse environments. Its robust electrical specifications, including reverse polarity protection and minimal idle power consumption, further enhance its reliability for both professional and hobbyist use.

The board is highly versatile, making it suitable for integration in home audio systems, custom amplifiers, and DIY audio projects. Its straightforward connectivity enables pairing with speakers, amplifiers, and other audio output devices, while the S/PDIF and I2S outputs provide options for advanced digital signal processing or connection to additional equipment. The inclusion of external control ports and dedicated buttons for mute and volume adjustment ensures ease of use and integration with custom setups.

Ideal for audio enthusiasts, system integrators, and those working on DIY kits, the UCM-PCM2706C stands out for its long-term manufacturing plan and high build quality. Its comprehensive connector layout, safety features, and flexible output modes make it a reliable building block for creating or upgrading modern digital audio systems. Whether you are developing new products, upgrading existing systems, or experimenting with digital audio interfaces, this module provides a solid foundation for superior sound quality and connectivity.