Acer Aspire 4739 Acer Aspire 4339 4739 4739Z Notebook Series Service Guide - Page 47

Item Features Amplifier Specification High-performance DACs with 97dB SNR (A-Weighting), ADCs with 90dB SNR (AWeighting) Meets premium performance requirements for Microsoft WLP 3.10 and future requirements will be effective since June 01'08 Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel output 2 stereo ADCs support 16/20/24-bit PCM format recording simultaneously. All DACs supports 16/20/24-bit, 44.1k/48k/96k/192kHz sample rate. All ADCs supports 16/20/24-btt, 44.1k/48k/96k/192kHz sample rate. Two independent S/PDIF-OUT converters support 16/20/24-bit, 44.1k/48k/88.2k/96k/192kHz sample rate. One for normal S/PDIF output, the other one output a independent digital stream to HDMI transmitter. One S/PDIF-IN converter supports 44.1k/48k/96k/192k Hz sample rate High-quality analog differential CD input Supports external PCBEEP input, built-in digital BEEP generator, and pass through function in D3 mode Software selectable 2.5V/3.75V/4.7V VREFOUT Two jack detection pins each designed to detect up to 4 jacks Extra jack detection pin for CD input when it is used as an optional line level input, S/PDIF input and output Support legacy analog mixer architecture Wide range (-80dB ~ +42dB) volume control with 1.5dB resolution of analog to analog mixer gain Software selectable boost gain (+10/+20/+30dB) for analog microphone input All analog jacks are stereo input and output re-tasking for analog plug & play Built-in headphone amplifiers for each re-tasking jack Two GPIOs (General Purpose Input and Output) for customized applications Supports Anti-pop mode when analog power AVDD is on and digital power is off. Support stereo digital microphone interface to improve voice quality Integrates high pass filter to cancel DC offset generated from digital microphone 48-pin LQFP 'Green' package Support low voltage IO for HDA Link (1.5V~3.3V) Intel low power ECR compliant, supports power status control for each analog converter and pin widgets, support jack detection and wake up event in D3 mode Subwoofer Amplifier: Mazim MAX9737 Speaker Amplifier: Panasonic G1442P81U Hardware Specifications and Configurations 1-37