Acer 7520, 7220 manual DVD-Dual Interface, Audio Interface

Hard Disk Drive Interface

Item
Voltage	5V(DC) +/- 5%	5V(DC) +/- 5%	5V(DC) +/- 5%	5V(DC) +/- 5%
tolerance

DVD-Dual Interface

Item		Specification
Vendor & model name	HLDS COMBO 12.7mm Tray 24X GCC-T10N
	SONY COMBO 12.7mm Tray 24X CRX880A LF
	PIONEER Super-Multi Drive 12.7mm Tray DVR-K17RS
	PANASONIC Super-Multi Drive 12.7mm Tray DL 8X UJ-850
	PHILIPS Super-Multi Drive 12.7mm Tray DL 8X DS-8A1P
	HLDS Super-Multi Drive 12.7mm Tray LabelFlash 8X GSA-T20N
	SONY Super-Multi Drive 12.7mm Tray DL 8X AD-7530A
	TOSHIBA HD-DVD Drive 12.7mm Tray TS-L802A
Performance Specification	With CD Diskette		With DVD Diskette
Transfer rate (KB/sec)	Sustained:		Sustained:
	Max 3.6Mbytes/sec		Max 10.8Mbytes/sec
Buffer Memory	2MB
Interface	Enhanced IDE(ATAPI) compatible
Applicable disc format	Support disc formats
	1.	Reads data in each CD-ROM, CD-ROM XA, CD-1, Video CD, CD-Extra and
	CD-Text
	2.	Reads data in Photo CD (single and Multi-session)
	3.	Reads standard CD-DA
	4.	Reads and writes CD-R discs
	5.	Reads and writes CD-RW discs
	6.	Reads and writes in each DVD+R/RW (Ver. 1.1)
	7.	Reads data in each DVD-ROM and DVD-R (Ver. 2.0 for Authoring)
	8.	Reads and writes in each DVD-R (Ver. 2.0 for general), DVD-RW and
	DVD+R/RW (Ver1.1)
Loading mechanism	Load: Manual
	Release: (a) Electrical Release (Release Button)
		(b) Release by ATAPI command
		(c) Emergency Release
Power Requirement
Input Voltage	5 V +/- 5 % (Operating)

Audio Interface

Item	Specification
Audio Controller	Realtek ALC268
Audio onboard or optional	Built-in
Mono or Stereo	Stereo
Resolution	18 bit stereo full duplex
Compatibility	HD audio Interface; S/PDIF output for PCM or AC-3 content
Sampling rate	1Hz resolution VSR (Variable Sampling Rate)
Internal microphone	Yes
Internal speaker / Quantity	Yes/2 (2W speakers)
Supports PnP DMA channel	DMA channel 0
	DMA channel 1
Supports PnP IRQ	IRQ10, IRQ11

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