CMI 8768+
PCI 8CH Integrated Sound Chip
Supports Dolby
®
Digital Live 5.1 Encoder
Data Sheet
Rev. 1.0
Dec. 1, 2004
NOTICES
THIS DOCUMENT IS PROVIDED “AS IS” WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY,
NONINFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY
WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, DOCUMENT
OR SAMPLE.
ALL RIGHTS RESERVED. NO PART OF THIS DOCUMENT MAY BE
REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS,
ELECTRONIC OR MECHANICAL, INCLUDING INFORMATION STORAGE
AND RETRIEVAL SYSTEMS, WITHOUT PERMISSION IN WRITING FROM
THE C-MEDIA ELECTRONICS, INC.
Third-party brands and names are the property of their respective owners.
Dolby
®
Digital Live logo is the trademark of Dolby Lab.
Copyright 2004-2005 © C-Media Electronics Inc.
C-Media Electronics, Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan 106, R.O.C.
TEL: 886-2-8773-1100
FAX: 886-2-8773-2211
http://www.cmedia.com.tw
For detailed product information, please contact
sales@cmedia.com.tw
PCI Dolby
®
Digital Live Sound Chip
CMI8768+ Datasheet Rev. 1.0
Contents
0.
1.
2.
3.
4.
5.
5.1
5.2
5.3
5.4
6.
6.1
6.2
6.3
6.4
6.5
6.6
7.
Revision History............................................................................................................... 3
Features........................................................................................................................... 4
Overview......................................................................................................................... 5
Block Diagram................................................................................................................ 7
Pin Assignment ............................................................................................................... 8
Pin Description ................................................................................................................ 9
Digital I/O ....................................................................................................................... 9
Analog I/O ................................................................................................................... 10
Power & Ground ......................................................................................................... 10
NC …………………………………………………………………………………………..10
Electrical Characteristics............................................................................................. 11
Maximum Ratings ....................................................................................................... 11
Recommended Operating Conditions................................................................... 11
Power Consumption................................................................................................... 11
Digital Characteristics ................................................................................................ 11
AC Characteristics ..................................................................................................... 12
Analog Performance ................................................................................................. 13
Mechanical Dimensions .............................................................................................. 15
Copyright 2004-2005 © C-Media Electronics Inc.
Page
1
PCI Dolby
®
Digital Live Sound Chip
CMI8768+ Datasheet Rev. 1.0
List of Figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Graphic User Interface Samples-- Main Setting & Mixer ............................... 5
Graphic User Interface Samples—Virtual Speaker SHIFTER & Sound Effect.. 6
Graphic User Interface Samples—Karaoke & Magic Voice & Information.. 6
Block Diagram ................................................................................................... 7
Top View of CMI8768+....................................................................................... 8
Mechanical Dimension................................................................................... 15
Copyright 2004-2005 © C-Media Electronics Inc.
Page
2
PCI Dolby
®
Digital Live Sound Chip
CMI8768+ Datasheet Rev. 1.0
0. Revision History
Date
2003/06/13
2003/07/17
2003/10/13
2004/12/01
Rev.
Rev. 0.1
Rev. 0.2
Rev. 0.3
Rev. 1.0
-
-
-
-
-
-
Release Note
Preliminary vision
Change feature and pin description
Add analog performance data
Update feature/overview description (Support
96K/24Bit output)
Clarify block diagram (no legacy/SBPRO support)
Correct pin function (#125 XS6CH=>GND;
#90-97 XGD0-XGD7=>NC; #59 EXTBASS type
from analog output to input)
Add pin #62 description: XINTREF => Internal
reference voltage
Clarify DirectX9.0 installed is required for 8ch
playback support on Windows
Indicate pin#9 IDSEL can work only with A16~31
Modify SPDIF-Out high voltage from VDD to 5V
Add Electrical Characteristics data and update
analog performance
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-
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Copyright 2004-2005 © C-Media Electronics Inc.
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