Hardware Specifications and Configurations 1-31
Audio Codec
Audio Interface
Webcam
Item Specification
Controller Realtek ALC271X_VB6 QFN-48
Features
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: 3.3 V digital core power;
1.5–3.3 V digital IO power for HDA link; 3.0–5.0 V analog
power; 3.0–5.0 V power stage voltage
Acoustic Echo Cancellation (AEC), Noise Suppression (NS),
and Beam Forming (BF) technologies for voice application
48-pin green QFN package
Item Specification
Controller Realtek ALC271X_VB6 QFN-48
Audio onboard Yes
Audio channel Stereo
Resolution 18 bit stereo full duplex
Compatibility High Definition Audio Specification
Sampling rate 1 Hz resolution VSR (Variable Sampling Rate)
Internal microphone Yes
Internal speaker/quantity Yes, two speakers
Item Specification
Vendor and models
Chicony HD CH_OV9726_AU
Liteon HD LT_OV9726_SP
Suyin HD SY_OV9726_AU
Resolution 1.3 MP HD