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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8976 датащи(PDF) 9 Page - Wolfson Microelectronics plc |
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WM8976 датащи(HTML) 9 Page - Wolfson Microelectronics plc |
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9 / 83 page  Preliminary Technical Data WM8976 w PTD Rev 2.0 February 2005 9 7. Dynamic range (dB) – DR 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). 8. THD+N (dB) – THD+N is a ratio, of the rms values, of (Noise + Distortion)/Signal. 9. 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. 10. The maximum output voltage can be limited by the speaker power supply. If OUT3BOOST, OUT4BOOST or SPKBOOST is set then SPKVDD should be 1.5xAVDD to prevent clipping taking place in the output stage (when PGA gains are set to 0dB). |
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