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WM8716SEDS 参数 Datasheet PDF下载

WM8716SEDS图片预览
型号: WM8716SEDS
PDF下载: 下载PDF文件 查看货源
内容描述: 高性能24位, 192kHz的立体声DAC [High Performance 24-bit, 192kHz Stereo DAC]
分类和应用: 转换器光电二极管
文件页数/大小: 27 页 / 301 K
品牌: WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
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Production Data  
WM8716  
8 X FS INPUT SAMPLE RATE  
Due to the higher speed of the interface in 8 x fs mode, audio data is input on two pins. The MODE  
pin (pin 24) is used as the second input for the right channel data and left data is input on DIN (pin 2).  
In this mode, software control of the device is not available. The data can be input in two formats, left  
or right justified, selectable by ML/I2S and two word lengths (20 or 24 bit), selectable by CSBIWO. In  
both modes the data is always clocked in MSB first.  
For left justified data the word start is marked by the falling edge of LRCIN. The data is clocked in on  
the next 20/24 BCKIN rising edges. This format is compatible with devices such as the PMD100.  
For right justified the data is justified to the rising edge of LRCIN and the data is clocked in on the  
preceding 20/24 BCKIN rising edges before the LRCIN rising edge. This format is compatible with  
devices such as the DF1704 or SM5842.  
In both modes the polarity of LRCIN can be switched using MD/DM0.  
Differential hardware mode can be used in conjunction with 8fs mode by setting the DIFFHW  
pin high. In differential 8fs mode the data is input on DIN and output differentially. MODE is unused  
and must be tied low.  
1/8fs  
LRCIN (PIN 1)  
BCKIN (PIN 3)  
LEFT AUDIO  
B23  
B23  
B22 B21 B20  
B19  
B19  
B2  
B2  
B1  
B1  
B0  
B0  
B23 B22  
B23 B22  
B21  
B21  
B20  
B20  
DATA DIN  
(PIN 2)  
RIGHT AUDIO  
DATA MODE  
(PIN 24)  
B22 B21 B20  
1/8fs  
LRCIN (PIN 1)  
BCKIN (PIN 3)  
LEFT AUDIO  
DATA DIN  
(PIN 2)  
B23  
B23  
B22 B21 B20  
B19  
B19  
B2  
B2  
B1  
B1  
B0  
B0  
RIGHT AUDIO  
DATA MODE  
(PIN 24)  
B22 B21 B20  
Figure 5 Audio Data Input Format (8 x fs Operation)  
w
PD Rev 4.1September 2006  
11