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CMI9738 の電気的特性と機能

CMI9738のメーカーはC-Media Electronicsです、この部品の機能は「4-Channel Audio Codec」です。


製品の詳細 ( Datasheet PDF )

部品番号 CMI9738
部品説明 4-Channel Audio Codec
メーカ C-Media Electronics
ロゴ C-Media Electronics ロゴ 




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CMI9738 Datasheet, CMI9738 PDF,ピン配置, 機能
www.DataSheet4U.com
CMI 9738
Integrated Multi-channel AC‘97
CMI9738 4CH Audio Codec
1. Description and Overview
Preliminary
Specification
Versatility
CMI9738 is a 4CH AC97 CODEC, applicable for
Alongside offering standard LQFP 48pin
packaging option, CMI9738 also offers SOP
currently mainstream MB chipsets of Intel, VIA, 24pin packaging, which helps to further cut the
Ali, and SIS. CMI9738 is ideal for
PC2001-compliant desktops, notebooks, and
home entertainment PCs where high-quality
cost.
More Audio Option
Last but not least,
CMI9738
provides
audio is a must.
4CH Playback
The specially-designed
4CH
hardware
Sensaura® 3D audio option. In that regard,
the audio quality of CMI9738 is fabulous
beyond general expectation.
architecture of CMI9738 allows all types of south
bridge to playback 4CH audio, thus helping Features
commonplace south bridge get rid of the
limitation of 2CH audio playback capability
„Intel AC’97 Rev 2.2 compatible
„AC-Link Protocol compliance
(patent pending both in Taiwan and United
„Full-Duplex Codec
States).
„Earphone Buffer
Cost-effectiveness
„Line-in/rear out share jack capability
As to the cost concern, CMI9738 integraDteastatShheeet4U.com
„4 channels DAC
earphone buffer, analog CD differential interface,
„48 LQFP Package and 24-Lead TSSOP
and analog switch for rear channel audio to
Line-in. Simply by using 0.1uf decoupling
Package
capacitor, CMI9738 meets PC2001 frequency
„ Meet Microsoft’s PC2001 requirements
„ Sensaura® 3D Enhancement(optional)
response requirements.
DataShee
Pin Block Diagram
37
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41
42
NC
AVdd2
REAR_OUT_L
TEST0#
REAR_OUT_R
43 AVss2
44
45
46
47
48
NC
NC
RESERVED
RESERVED
NC
NC
U2
CMI9738-LQFP-48
LINE_IN_R
LINE_IN_L
NC
MIC1
CD_R
CD_GND
CD_L
NC
NC
AUX_IN_R
AUX_IN_L
NC
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
SDATA_IN
SYNC
4
5
6
7
8
RESET#
AUX_IN_L
AUX_IN_R
CD_L
CD_GND
9
10
11
12
CD_R
MIC1
LINE_IN_L
LINE_IN_R
VREF_OUT
BIT_CLK
SDATA_OUT
XTL_OUT
XTL_IN
DVsdd
Vss
TEST0#
AVdd
LINE_OUT_R
LINE_OUT_L
XADCHR
XADCHL
24
23
22
21
20
19
18
17
16
15
14
13
DataSheet4UC.c-MomEDIA Electronics Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106
TEL: 886-2-8773-1100 FAX: 886-2-8773-2211 E-mail:[email protected]
DataSheet4 U .com
Revision Date Apr./2002
Revision 1.1

1 Page





CMI9738 pdf, ピン配列
www.DataSheet4U.com
CMI 9738
Integrated Multi-channel AC‘97
CMI9738 Mixer Block Diagram
et4U.com
DataSheet4U.com
DataShee
The CMI9738 mixer is designed to the AC’97 specification to manage playback and record
of all digital and analog audio sources in the PC environment. These include
ŠSystem audio digital PCM input and output for business, games, and multimedia
ŠCD/DVD analog CD/DVD-ROM Redbook audio with internal connections to Codec mixer
ŠMono microphone choice of desktop or headset mic, with programmable boost and gain
ŠSpeakerphone use of system mic & speakers for telephony, DSVD, and video
conferencing
ŠStereo line in analog external line level source from consumer audio, video camera, etc
ŠAUX/synth analog FM or wavetable synthesizer, or other internal source
SOURCE
FUNCTION
CONNECTION
MIC1
LINE_IN
CD
AUX
desktop microphone
external audio source
audio from CD-ROM drive
upgrade synth or other external source
from mic jack
from line in jack
cable from CD-ROM
internal connector
PCM out
Mix out
LINE_OUT
REAR_OUT
digital audio output from AC '97 Controller
mix of all sources
stereo mix of all sources (front channel)
stereo output of rear (surround) channel
AC-link
AC ‘97 internal
to output jack
to output jack
PCM in
digital audio input to AC '97 Controller
AC-link
DataSheet4UC.c-MomEDIA Electronics Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106
TEL: 886-2-8773-1100 FAX: 886-2-8773-2211 E-mail:[email protected]
DataSheet4 U .com
OUTPUT MIX SUPPORTS:
•stereo mix of all sources for LINE_OUT
•stereo output for REAR_OUT
INPUT MUX SUPPORTS:
•any mono or stereo source
•mono or stereo mix of all sources
Revision Date Apr./2002
Revision 1.1


3Pages


CMI9738 電子部品, 半導体
www.DataSheet4U.com
9. REFERENCES
10. LIST OF FIGURES
Figure 1. AC ‘97 connection to its companion controller
Figure 2. AC ‘97 Standard Bi-directional Audio Frame
Figure 3. AC-link Audio Input Frame
Figure 4. Start of an Audio Input Frame
Figure 5. AC-Link Audio Output Frame
Figure 6. Start of an Audio Output Frame
Figure 7. AC-link Powerdown Timing
Figure 8. CMI9738 Mixer Functional Diagram
Figure 9. Cold Reset timing diagram
Figure 10. Warm Reset
Figure 11. BIT_CLK to SYNC timing diagram
Figure 12. Data Setup and Hold
Figure 13. Signal rise and fall times diagram
Figure 14. AC-link low power mode timing diagram
Figure 15. ATE test mode timing diagram
11.LIST OF TABLES
et4U.com
Table 1. Digital Signal List
Table 2. Analog Signal List
DataSheet4U.com
Table 3. Filtering and Voltage References
Table 4. Power Signal List CMI9738
Table 5. Mixer Functional Connections
Table 6. Mixer Registers
Table 7. Cold Reset timing parameters
Table 8 Warm Reset
Table 9. Clocks
Table 10. Data setup and hold timing parameters
Table 11. Signal rise and fall times parameters
Table 12. AC-link low power mode timing parameters
Table 13. ATE test mode timing parameters
Table 14. DC Characteristics (relative to Vdd)
Table 15. DC Characteristics (3.3 V Operation as per PCI 2.2)
Table 16. Absolute Maximum Ratings
Table 17. Operating Conditions
Table 18. Mixer Characteristics
Table 19. Power Consumption
Table 20. Analog performance characteristics
DataSheet4UC.c-MomEDIA Electronics Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106
TEL: 886-2-8773-1100 FAX: 886-2-8773-2211 E-mail:[email protected]
DataSheet4 U .com
CMI 9738
Integrated Multi-channel AC‘97
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Revision Date Apr./2002
Revision 1.1

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
CMI9738

4-Channel Audio Codec

C-Media Electronics
C-Media Electronics
CMI9739

6-Channel Audio Codec

C-Media Electronics
C-Media Electronics
CMI9739A

6-Channel Audio Codec

C-Media Electronics
C-Media Electronics


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