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Stresses above the ratings listed below can cause permanent damage to the STAC9271/9272/9273/9274. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range.

The STAC927x "Red River" is a family of Theater Quality 10-channel audio CODECs that enable systems with 7.1 audio playing simultaneously with VoIP or another stereo audio stream. IDT's proprietary technology provides high fidelity with an estimated DAC SNR up to 105dB. Up to four digital microphones are supported enabling high quality voice input for increased usability of voice applications.