Acer Aspire 8935G Acer Aspire 8935G Series Service Guide - Page 41
Audio Amplifier, Subwoofer Speaker, Front Speaker, Center Speaker, Specification, High +90dB PSRR
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Audio Amplifier Item Model Package Features Subwoofer Speaker Item Vendor and Model Package Features Power supply Front Speaker Item Vendor and Model Package Weight Power supply Center Speaker Item Vendor and Model Package Weight Chapter 1 Specification Panasonic 12947A 48 pins QFP • Microsoft Windows Vista Compliant • High +90dB PSRR, Low -80dB THD+N • Class AB 2.2W (max.) Stereo BTL Speaker Amplifier • Built-in direct drive headphone amplifier within charge pump • AGC adjusted circuit function implement • STBY function support on speaker and headphone (countermeasure pop noise) • RF noise prevention • Built-in over current protection • External adjustable speaker and headphone amplifier gain Specification Maxim MAX9737 24pins TQFN • Spread-spectrum modulation enable for low EMI solution • High PSRR 80dB • Up to 88% efficiency eliminate heatsink • Thermal and Output current protection • Shut-down mode current