Acer TravelMate 8481TG Acer TravelMate 8481, 8481T, 8481TG Notebook Service Gu - Page 44
Mini Card, Audio Codec and Amplifier, N/A Codec IC support Class D Amplifier
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Mini Card Item Number supported Features Specification 2 1 slot for WLAN (PCIE + USB interface) 1 slot for mSATA (SATA) (Regarding 3G support, it is TBD.) 3G Card (N/A) Features Item Specification Audio Codec and Amplifier Item Audio Controller Features Amplifier Features Specification 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 1-34