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參數資料
| 型號： | WM9709 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | AC LINK INTERFACE AUDIO DAC |
| 中文描述： | 交流鏈路接口音頻DAC |
| 文件頁數： | 1/18頁 |
| 文件大小： | 159K |
| 代理商： | WM9709 |
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WM9709
AC-link Interface Audio DAC
DESCRIPTION
WOLFSON MICROELECTRONICS plc
w :: www.wolfsonmicro.com
Production Data, February 2003, Rev 1.3
Copyright
2003 Wolfson Microelectronics plc
The WM9709 is a low cost, high-quality stereo audio DAC.
It utilises the Intel specified AC-link audio interface protocol,
allowing a pair of audio output channels to be added to any
AC link compliant controller device at minimal board area
and external component cost.
The WM9709 device supports 48ks/s sample rates when
operated at the normal AC link rate. The WM9709 supports
a revision 1.03 AC ’97 AC-link interface, the device acting
as a master in normal operation.
The ID pin can be used to select which data slots on the
AC-link are to be used as input to the DAC. This allows 3 x
WM9709 to be used with a single controller that supports 6
channel sound, to output surround sound audio signals.
When supporting surround, centre or LFE channels, the
WM9709 behaves as a slave device.
The WM9709 device is footprint compatible with the
WM9708 codec, allowing simple swapping between DAC
and full codec features on the same board. The WM9709 is
packaged in a 20-pin SSOP.
FEATURES
20-Bit Stereo DAC
Audio Performance
102dB SNR (‘A’ weighted at 48kHz)
-95dB THD
Revision 1.03 or higher AC’97 AC-link interface support.
3.3V or mixed 3V digital, 5V analogue operation
20-Pin SSOP Package
Minimal external component cost
Support for surround and centre/LFE channels
APPLICATIONS
Notebook PC
PC sound cards
Motherboards
Custom sound applications
BLOCK DIAGRAM
LINEOUTR
SERIAL
INTERFACE
SDATAOUT
LINEOUTL
SIGMA
DELTA
MODULATOR
SDATAIN
BITCLK
SIGMA
DELTA
MODULATOR
DIGITAL FILTERS
DVDD
AGND
DGND
LOW
PASS
FILTER
LOW
PASS
FILTER
CAP
RIGHT
DAC
LEFT
DAC
AGND
AVDD
SYNC
RESETB
XTLIN
XTLOUT
ID
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WM9709
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| WM9709CDS | AC LINK INTERFACE AUDIO DAC |
| WM9710 | AC97 Audio CODEC and Mixer with Integrated Headphone Driver |
| WM9711 | LOW POWER AUDIO CODEC FOR PORTABLE APPLICATIONS |
| WM9711L | LOW POWER AUDIO CODEC FOR PORTABLE APPLICATIONS |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WM9709CDS | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC LINK INTERFACE AUDIO DAC |
| WM9709CDS/R | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC LINK INTERFACE AUDIO DAC |
| WM9710 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio CODEC and Mixer with Integrated Headphone Driver |
| WM9710SEFL/RV | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio CODEC and Mixer with Integrated Headphone Driver |
| WM9710SEFL/V | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:AC97 Audio CODEC and Mixer with Integrated Headphone Driver |
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