Acer Aspire 3750 - Audio Codec and Amplifier

Hardware Specifications and Configurations 1-31
Audio Codec and Amplifier
Audio Interface
Item Specification
Audio Controller Realtek ALC271X-VB3-GR
Features
 Four channels stereo ADC support 16/20/24-bit PCM format
 All DAC/ ADC support independent 44.1k/ 48k/ 96k/ 192 kHz
sample rate
 All analog jack ports except MONO, BEEP-IN and HP-OUT
are stereo input and output re-tasking
 Supports analog PCBEEP input, and a digital BEEP
generator is integrated
 Headphone amplifier on port-I (HP-OUT) is designed to drive
output without external DC blocking capacitors
 Software selectable 2.5V and 3.2V reference output for
microphone bias
 Software selectable boost gain (+10/+20/+30dB) for analog
microphone input
 Two jack detection pins: each supports detection of up to 4
jacks
 Supports two GPIO pins
 Supports EAPD (external amplifier power down) control for
external amplifier
 Supports anti-pop mode when analog power AVDD is on and
digital power is off
 Support 1.5V~3.3V scalable I/O for HD Audio link
 48-pin LQFP ‘Green’ package
 Jack detection function is supported when device is in power
down mode (D3)
Amplifier
 Realtek ALC271X-VB3-GR embedded
Item Specification
Audio Controller Realtek ALC271X-VB3-GR
Audio onboard or optional On board
Mono or Stereo Stereo
Resolution Support 16/20/24bit PCM
Compatibility HD audio Interface
Sampling rate Sample rate up to 192Khz resolution VSR (Variable Sampling
Rate)