Acer Aspire 4820TG Service Guide - Page 32

Item Features Specification • 98dB Signal-to-Noise Ratio (A-weighting) for DAC output • 90dB Signal-to-Noise Ratio (A-weighting) for ADC input Internal Digital • Power support: 3.3V digital core power; 1.5V~3.3V digital IO power for HDA link; 3.0V~5.0V analog power; 3.0V~5.0V power stage voltage • Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming (BF) technology for voice application • Stereo Bridge-Tied Load Class-D amplifier at port-D has 2Watt (rms)/ 4amps per channel output • Analog Microphone • Headphone with SPDIF jack • 48-pin QFN 'Green' package Power and Keyboard Controller Item Controller Total number of keypads Windows logo key Hotkeys Specification ACPI 2.0 99-/100-/103-key keyboard Yes See "Hot Keys" on page 16. Battery Item Vendor & model name Battery Type Pack capacity Normal Voltage Package configuration Specification 6 Cell SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A Li-ion 4400 mAh 2.2 Ah 3S2P LCD Item Vendor/model name Screen Diagonal (in) Display resolution (pixels) Pixel Pitch Display Mode Typical White Luminance (cd/m2) (also called Brightness) Contrast Ratio Response Time (Optical Rise Time/Fall Time) msec Luminance Uniformity Electrical Interface Support Color Viewing Angle (up/down/right/ left) Specification AUO/CPT/CMO/Samsung/LCD/INL 14" 1366 x 768 WXGA Clare 0.204 x 0.204 Normal 220 500 typical 8 1.25 max LVDS 262K 15/35/45/45 22 Chapter 1