Alc271x Datasheet Jun 2026

Due to its reliability, it is often chosen for "set it and forget it" industrial computing.

The ALC271X is built around the , the standard interface for modern PC audio codecs. This link handles the high-bandwidth digital audio streams between the codec and the host's PCH. Key connectivity highlights include:

If you are searching for the official ALC271X datasheet, you will typically find a 70-80 page PDF containing the technical reference. Below, we synthesize the most critical sections of that document. alc271x datasheet

These chips are usually designed to be compatible with a wide range of operating systems, including Windows, macOS, Linux, and sometimes Android, making them versatile for different applications.

I can provide further hardware insights to help you integrate or debug this component. Let me know: Due to its reliability, it is often chosen

The ALC271X provides transparent, studio-quality sound. It supports 16 to 24-bit audio data formats with sample rates covering for both playback and recording. The signal-to-noise ratio (SNR) on the DAC output is rated at 98 dB (A-weighting), which meets the stringent requirements for Windows Logo Program (WLP) certification for Windows XP, Vista, and Windows 7. For the recording path (ADC), the SNR is rated at 90 dB , ensuring clear voice capture.

# List playback devices aplay --list-devices # Look for "ALC271X Analog" (card 0, device 0) Key connectivity highlights include: If you are searching

HD Audio link interface to the processor (HDA_SDIN, HDA_SDOUT, HDA_SYNC, HDA_BITCLK).

A recurring theme in technical forums regarding the ALC271X is its relationship to the . Extensive debugging by the open-source community has revealed that the ALC271X is not a wholly unique design but rather a software-constrained variant of the ALC269 family.

The datasheet explicitly notes that the ALC271X does not support "Power State Mapping" for all inputs simultaneously. You cannot use Line-in and Mic-in at the same time in hardware.

High-quality audio output with specifications such as 24-bit or higher resolution and sample rates of up to 192 kHz or more, ensuring clear and detailed sound reproduction.