Acer Aspire Z3801, Service Manual

Page: 40 / 176

1-30 Hardware Specifications and Configurations
Audio Codec and Amplifier
Item Specification
Audio Controller Realtek ALC272X-GR
Features

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
Amplifier Realtek ALC105
Features

Single-Ended stereo analog input

BTL (Bridge-Tied Load) output provide up to 5W per channel
driving capability into 8

speaker load (5V power is supplied)

No external output L-C filter required

Speaker amplifier power supplies from 3.3V to 5V

10

A Shut Down current