Acer 4820T Power and Keyboard Controller Specification, Battery Specification Cell, Lcd, Lvds

Item				Specification
Features	•		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				Specification
Controller			ACPI 2.0
Total number of keypads			99-/100-/103-key keyboard
Windows logo key			Yes
Hotkeys			See “Hot Keys” on page 16.
Battery
Item				Specification
				6 Cell
Vendor & model name		SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A
Battery Type		Li-ion
Pack capacity		4400 mAh
Normal Voltage		2.2 Ah
Package configuration		3S2P
LCD
Item				Specification
Vendor/model name				AUO/CPT/CMO/Samsung/LCD/INL
Screen Diagonal (in)				14”
Display resolution (pixels)				1366 x 768 WXGA Clare
Pixel Pitch				0.204 x 0.204
Display Mode				Normal
Typical White Luminance (cd/m2)				220
(also called Brightness)
Contrast Ratio				500 typical
Response Time (Optical Rise				8
Time/Fall Time) msec
Luminance Uniformity				1.25 max
Electrical Interface				LVDS
Support Color				262K
Viewing Angle (up/down/right/				15/35/45/45
left)

22 Chapter 1