Acer Aspire 4745, Service Manual

Page: 31 / 194

Chapter 1 21
Audio Interface
Applicable disc
formats DVD-ROM:
4.7GB (Single Layer)
8.5GB (Dual Layer)
DVD-R:
3.95GB (Ver. 1.0: read only)
4.7GB (Ver. 2.0 for Authoring: read only)
4.7GB (Ver. 2.1 for General: read & write)
(DL) 8.5GB (Ver. 3.0)
DVD-RW:
4.7GB (Ver. 1.2/ Rev 1.0, 2.0, 3.0)
DVD-RAM: 1.46GB/side, 4.7GB/side
(Ver. 2.2)
DVD+R: 4.7GB (Ver. 1.3)
(DL) 8.5GB (Ver. 1.1)
DVD+RW:
4.7GB (Vol.1 Ver.1.3)
CD-ROM Mode-1 data disc
CD-ROM Mode-2 data disc
CD-ROM XA, CD-I, Photo-CD Multi-
Session, Video CD
CD-Audio Disc
Mixed mode CD-ROM disc (data and
audio)
CD-Extra
CD-Text
CD-R (Conforming to “Orange Book Part
2”: read & write)
CD-RW (Conforming to “Orange Book
Part 3”: read & write)
DVD Read:
DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-
18), DVD-Video, DVD-Audio, SACD (Hybrid),
UDF DVD, DVD-R, DVD-R DL, DVD-R 3.95
GB, DVD-R Authoring, DVD-R Multi-Border,
DVD-RW, DVD+R, DVD+R DL, DVD+R
Multi-Session, DVD+RW, DVD-RAM V1.0,
DVDRAM
V2.0 & 2.1 &2.2.
CD Read:
CD-DA, CD-ROM Mode-1, CD-ROM/XA
Mode-2 Form-1 and Mode-2 Form-2, CD-i,
CD-i
Bridge, Video-CD (MPEG-1), Karaoke CD,
Photo-CD, Enhanced CD, CD Plus, CD
Extra, itrax
CD, CD-Text, UDF CD, CD-R, and CD-RW
DVD Write:
DVD Data & Video
CD Read:
CD-DA, CD-ROM Mode-1, CD-ROM/XA
Mode-2 Form-1 and Mode-2 Form-2, CD-i,
Video-
CD, CD-Text
Loading mechanism Drawer (Solenoid Open)
Tact SW (Open)
Emergency Release (draw open hole)
Power Requirement
Input Voltage DC 5 V +/- 5%
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
Item Specification