Mini Card; Audio Codec And Amplifier - Acer TravelMate 8481T Service Manual

Mini Card

Item
Number supported
Features
3G Card (N/A)
Item
Features

Audio Codec and Amplifier

Item
Audio Controller
Features
Amplifier
Features
1-34
2
1 slot for WLAN (PCIE + USB interface)

1 slot for mSATA (SATA) (Regarding 3G support, it is TBD.)

Realtek ALC271-X
4-channel DAC supports 16/20/24-bit PCM format for independent

two stereo channel or 2.1 audio playback
4-channel ADC supports 16/20/24-bit PCM format for independent

two stereo channel audio inputs
All DACs /ADCs supports 44.1k/48k/96k/192kHz sample rate

S/PDIF-OUT support 16/20/24-bit format and

44.1/48/88.2/96/192kHz rate
Supports MONO line level output

Supports external PCBEEP input and built-in digital BEEP generator

Software selectable 2.5V/3.2V VREFOUT as bias voltage for analog

microphone input
Programmable +12/+24/+36dB boost gain for analog microphone

input
Supports stereo digital microphone input

Programmable boost gain and volume control for digital microphone

input
Built-in headphone amplifiers for port-C (LINE1) and port-I (HP OUT)

Headphone amplifier for port-I does not require DC blocking

capacitors
Two jack detection pins each designed to detect up to 4 jacks, and

S/PDIF-OUT jack detection is supported
2 GPIOs are supported for customized applications (pin shared with

digital microphone interface)
EAPD (External Amplifier Power Down) is supported

Supports Anti-pop mode when analog power AVDD is on and digital

power is off
N/A (Codec IC support Class D Amplifier)
N/A
Specification
Specification
Specification