Acer EM250 manual Lvds, Audio Codec and Amplifier Specification, Realtek ALC272X-GR

Item	Specification
Pixel Pitch (mm)	0.2175
Typical White Luminance (cd/m2)	200
also called Brightness
Contrast Ratio	500:1
Response Time (Optical Rise	10
Time/Fall Time) msec
Typical Power Consumption	2.5
(watt)
Weight (without inverter)	180
Physical Size (mm)	235.5 x 143.5 x 5.2
Electrical Interface	LVDS
Viewing Angle (degree)
Horizontal (Right) CR = 10 (Left)	45/45
Vertical (Upper) CR = 10 (Lower)	20/45

Audio Codec and Amplifier

Item		Specification
Audio	REALTEK ALC272X-GR
Controller
Features	• Two stereo DAC support 16/20/24-bit PCM for two independent playback (multiple
	streaming)
	• Two stereo ADC supports 16/20/24-bit PCM format for two independent recording
	• All DACs support independent 44.1k/48k/96k/192kHz sample rate
	• All ADCs support independent 44.1k/48k/96k/192kHz sample rate
	• Two independent SPDIF outputs support 16/20/24-bit format and 44.1k/48k/88.2k/
	96k/192kHz rate
	• Supports line level mono output
	• Supports analog PCBEEP input, and features an integrated digital BEEP
	generator
	• Support two stereo digital microphone input for microphone array AEC/BF
	application
	• Supports legacy analog mixer architecture
	• Supports two GPIO (General Purpose Input/Output) pins (pin sharing with digital
	microphone interface)
	• Supports EAPD (External Amplifier Power Down) control for external amplifier
	• Supports anti-pop mode when analog power AVDD is on and digital power is off
	• Supports 1.5V~3.3V scalable I/O for HD Audio link
	• 48-pin LQFP ‘Green’ package
LAN Interface
	Item	Specification
LAN Chipset		Atheros AR8114/AR8132
Features		• Supports 10/100
Keyboard
	Item	Specification
Type		New Acer flat keyboard
Total number of keypads		84/88 with 101/102 key emulation
Windows logo key		Yes

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