Audio Codec And Amplifier; Audio Interface - Acer Aspire 5755 Service Manual

Audio Codec and Amplifier

Audio Controller
Features
Amplifier
Features

Audio Interface

Audio Controller
Audio onboard or optional
Mono or Stereo
Resolution
Compatibility
Sampling rate
Internal microphone
Internal speaker/quantity
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Hardware Specifications and Configurations
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Item
Audio codec: Realtek ALC271X-GR
Two stereo DAC support 16/20/24-bit PCM for two

independent playback (multiple streaming)
Two stereo ADC supports 16/20/24-bit PCM format for two

independent recording
All DACs support independent 44.1k/48k/96k/192kHz sample

rate
All ADCs support independent 44.1k/48k/96k/192kHz sample

rate
Two independent SPDIF outputs support 16/20/24-bit format

and 44.1k/48k/88.2k/96k/192kHz rate
Supports line level mono output

Supports analog PCBEEP input, and features an integrated

digital BEEP generator
Support two stereo digital microphone input for microphone

array AEC/BF application
Supports legacy analog mixer architecture

Supports two GPIO (General Purpose Input/Output) pins (pin

sharing with digital microphone interface)
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
Supports 1.5V~3.3V scalable I/O for HD Audio link

48-pin LQFP 'Green' package

N/A
N/A
Item
Realtek ALC271X-GR
On board
Stereo
Support 16/24bit PCM
HD audio Interface
Sample rate up to 192Khz resolution VSR (Variable Sampling
Rate)
Yes
Yes/(2W speakers x2)
Specification
Specification
1-35