Acer KB.I0800.004 Technical Information PDF herunterladen (Seite 28)

18 Chapter 1

Audio Codec and Amplifier

LAN Interface

Keyboard

Item Specification

Audio

Controller

REALTEK ALC272

Features • 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

Item Specification

LAN Chipset Atheros AR8114 10/100 Mbps Fast Ethernet LAN with Integrated Transceiver

Features • PCI-E interface LAN controller

• PCIE V1.1 compliant

• Supports wake on LAN

• 48-pin QFN package

Item Specification

Type New Acer flat keyboard

Total number of keypads 84

Windows logo key Yes

Internal & external keyboard work

simultaneously

Plug USB keyboard to the USB port directly: Yes

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