Acer 4745 manual Audio Interface Specification

	Item				Specification
Applicable disc		DVD-ROM:				DVD Read:
formats		4.7GB	(Single Layer)			DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-
		8.5GB	(Dual Layer)			18), DVD-Video, DVD-Audio, SACD (Hybrid),
		DVD-R:				UDF DVD, DVD-R, DVD-R DL, DVD-R 3.95
		3.95GB (Ver. 1.0: read only)				GB, DVD-R Authoring, DVD-R Multi-Border,
						DVD-RW, DVD+R, DVD+R DL, DVD+R
		4.7GB (Ver. 2.0 for Authoring: read only)
						Multi-Session, DVD+RW, DVD-RAM V1.0,
		4.7GB (Ver. 2.1 for General: read & write)
						DVDRAM
		(DL) 8.5GB		(Ver. 3.0)		V2.0 & 2.1 &2.2.
		DVD-RW:
		4.7GB (Ver. 1.2/ Rev 1.0, 2.0, 3.0)				CD Read:
		DVD-RAM: 1.46GB/side, 4.7GB/side
						CD-DA, CD-ROM Mode-1, CD-ROM/XA
		(Ver. 2.2)
						Mode-2 Form-1 and Mode-2 Form-2, CD-i,
		DVD+R: 4.7GB (Ver. 1.3)
						CD-i
		(DL) 8.5GB		(Ver. 1.1)
						Bridge, Video-CD (MPEG-1), Karaoke CD,
		DVD+RW:
						Photo-CD, Enhanced CD, CD Plus, CD
		4.7GB (Vol.1 Ver.1.3)				Extra, itrax
						CD, CD-Text, UDF CD, CD-R, and CD-RW
		CD-ROM Mode-1 data disc
		CD-ROM Mode-2 data disc				DVD Write:
		CD-ROM XA, CD-I, Photo-CD Multi-				DVD Data & Video
		Session, Video CD
		CD-Audio Disc				CD Read:
		Mixed mode CD-ROM disc (data and				CD-DA, CD-ROM Mode-1, CD-ROM/XA
		audio)				Mode-2 Form-1 and Mode-2 Form-2, CD-i,
		CD-Extra				Video-
		CD-Text				CD, CD-Text
		CD-R (Conforming to “Orange Book Part
		2”: read & write)
		CD-RW (Conforming to “Orange Book
		Part 3”: read & write)
Loading mechanism		Drawer (Solenoid Open)
		Tact SW (Open)
		Emergency Release (draw open hole)
Power Requirement
Input Voltage					DC 5 V +/- 5%
	Audio Interface
	Item				Specification
	Chipset			Realtek ALC271X high definition audio codec with embedded class-D
				speaker amplifier
	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

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