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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8978CGEFL/V датащи(PDF) 47 Page - Wolfson Microelectronics plc |
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WM8978CGEFL/V датащи(HTML) 47 Page - Wolfson Microelectronics plc |
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47 / 118 page  Production Data WM8978 w PD, Rev 4.5, October 2011 47 Figure 23 Noise Gate Operation OUTPUT SIGNAL PATH The WM8978 output signal paths consist of digital application filters, up-sampling filters, stereo Hi-Fi DACs, analogue mixers, speaker, stereo headphone and stereo line/mono/midrail output drivers. The digital filters and DAC are enabled by register bits DACENL and DACENR. The mixers and output drivers can be separately enabled by individual control bits (see Analogue Outputs). Thus it is possible to utilise the analogue mixing and amplification provided by the WM8978, irrespective of whether the DACs are enabled or not. The WM8978 DACs receive digital input data on the DACDAT pin. The digital filter block processes the data to provide the following functions: Digital volume control Graphic equaliser Digital peak limiter. Sigma-Delta Modulation High performance sigma-delta 24-bit audio DAC converts the digital data into an analogue signal. |
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