Acer Aspire 4349 User Manual

Hardware Specifications and Configurations 1-39
Audio Codec and Amplifier
Item Specification
Audio Controller Realtek ALC271X-VB3-GR
Features Hardware:
 Meets WLP (Windows Logo Program) requirements for Windows XP,
Vista and Windows 7
 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 supports 44.1k/48k/96k/192kHz sample rate
 All ADCs support 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, and Stereo digital microphone
input
 Supports external PCBEEP input and built-in digital BEEP generator
 Built-in headphone amplifiers for port-C (LINE1) and port-I (HP OUT)
 Programmable +12/+24/+36db boost gain and volume control for
analog microphone input
 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.
 Support PC-Beep to internal speaker out (Port D) when no HDA
control, while AVDD and PVDD is supplied.
 Power support: 3.3V digital core power; 1.5V~3.3V digital IO power
for HDA link; 3.0V~5.5V analog power; 4.5V~5.5V power stage
voltage
 Enhanced power management features for normal operation and
standby mode
 Stereo Bridge-Tied Load Class-D amplifier at port-D has 2Watt
(rms)/4\ per channel output
 Short circuit and thermal overload protection for Class-D amplifier
 Class D amplifier has high pass filter with programmable Cut-Off
frequency (10Hz~900Hz) to prevent low frequency signal damage
speaker
 Class D amplifier output with slew rate and spread spectrum control
to improve EMI performance
 Independent left and right channel of output power limiter
(25%~100% power range) to protect speaker
 Intel low power ECR compliant: supports power status control, jack
detection, and wake-up event in D3 mode
 Built in a 5V-to-4.5V linear regulator with 60dB PSRR to power
analog circuitry
 48-pin QFN ‘Green’ package

Acer Aspire 4349 Specifications

General

Brand	Acer
Model	Aspire 4349
Category	Laptop
Language	English