Acer Aspire One AOP531h Service Manual page 27

Audio Codec and Amplifier
Item
Audio REALTEK ALC272X-GR
Controller
Features
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LAN Interface
Item
LAN Chipset
Features
Keyboard
Item
Type
Total number of keypads
Windows logo key
Internal & external keyboard work
simultaneously
Chapter 1
Meets performance and function requirements defined in Microsoft WLP 3.0x and
future WLP version
Two stereo DAC supports 16/20/24-bit PCM format for multiple streaming of
playback
Two stereo ADC support 16/20/24-bit PCM format for multiple streaming of
recording
All DAC support independent 44.1k/48k/96k/192kHz sample rate
All ADC support independent 44.1k/48k/96k/192kHz sample rate
Two independent S/PDIF output supports 16/20/24-bit format and 44.1k/48k/
96k192kHz sample rate
All analog jack ports except MONO, BEEP-IN, MIC1 and HP-OUT are stereo input
and output re-tasking
Supports line level mono output
Supports analog PCBEEP input, and a digital BEEP generator is integrated.
Up to four channels of digital microphone array input are supported for AEC/BF
application
Supports legacy analog input to analog output mixer
Built-in five headphone amplifiers for port-A and port-D, port-E, port-F and port-I.
Headphone amplifier for 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
Jack detection function is supported when device is in power down mode (D3)
Supports two GPIO (general purpose input and output) pins (pin sharing with
digital microphone interface)
Supports EAPD (external amplifier power down) control for external amplifier
Support 1.5V~3.3V scalable I/O for HD Audio link
Supports anti-pop mode when analog power AVDD is on and digital power is off
48-pin LQFP 'Green' package
Atheros AR8114 10/100 Mbps Fast Ethernet LAN with Integrated Transceiver
PCI-E interface LAN controller
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PCIE V1.1 compliant
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Supports wake on LAN
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48-pin QFN package
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New Acer flat keyboard
84
Yes
Plug USB keyboard to the USB port directly: Yes
Specification
Specification
Specification
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