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WM8591GEDS 参数 Datasheet PDF下载

WM8591GEDS图片预览
型号: WM8591GEDS
PDF下载: 下载PDF文件 查看货源
内容描述: 24位192千赫立体声CODEC [24 BIT, 192 KHZ STEREO CODEC]
分类和应用:
文件页数/大小: 50 页 / 495 K
品牌: WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
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WM8591  
Product Preview  
TERMINOLOGY  
1. Signal-to-noise ratio (dB) – SNR is a measure of the difference in level between the full scale output and the output  
with no signal applied. (No Auto-zero or Automute function is employed in achieving these results).  
2. Dynamic range (dB) – DNR is a measure of the difference between the highest and lowest portions of a signal.  
Normally a THD+N measurement at 60dB below full scale. The measured signal is then corrected by adding the 60dB  
to it. (e.g. THD+N @ -60dB= -32dB, DR= 92dB).  
3. THD+N (dB) – THD+N is a ratio, of the rms values, of (Noise + Distortion)/Signal.  
4. Stop band attenuation (dB) – Is the degree to which the frequency spectrum is attenuated (outside audio band).  
5. Channel Separation (dB) – Also known as Cross-Talk. This is a measure of the amount one channel is isolated from  
the other. Normally measured by sending a full scale signal down one channel and measuring the other.  
6. Pass-Band Ripple – Any variation of the frequency response in the pass-band region.  
PP Rev 1.0 May 2005  
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