Acer Aspire S7-391 Acer S7-391 Notebook Service Guide - Page 31
Supported Display Resolutions, Audio Codec, Audio Interface, Specification
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Supported Display Resolutions Specification 1024×768, 60 Hz 1360×768, 60 Hz 1152×864, 60 Hz 1366×768, 60 Hz 1280×768, 60 Hz 1400×1050, 60 Hz 1280×800, 60 Hz 1440×900, 60 Hz 1280×960, 60 Hz 1600×900, 60 Hz 1280×1024, 60 Hz 1680×1050, 60 Hz Maximum Resolution HDMI: 1920x1080: 60Hz Audio Codec Controller Features Item Specification Realtek ALC271X-VB6 98 dB Signal-to-Noise Ratio (A-weighting) for DAC output 90 dB Signal-to-Noise Ratio (A-weighting) for ADC input Internal Digital Power support: 3.3V digital core power; 1.5-3.3V digital IO power for HDA link; 3.0-5.5V analog power; 4.5-5.5V power stage voltage Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technologies for voice application 48-pin green QFN package Audio Interface Item Controller Audio onboard Audio channel Resolution Compatibility Sampling rate Internal microphone Internal speaker/quantity Specification Realtek ALC271X-VB6 Yes Stereo 18 bit stereo full duplex High Definition Audio Specification 1 Hz resolution VSR (Variable Sampling Rate) Yes Yes, two speakers Hardware Specifications and Configurations 1-23