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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8971LEFL датащи(PDF) 18 Page - Wolfson Microelectronics plc |
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WM8971LEFL датащи(HTML) 18 Page - Wolfson Microelectronics plc |
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18 / 56 page  WM8971L Advanced Information w AI Rev 3.0 March 2004 18 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 7:6 LINSEL 00 Left Channel Input Select 00 = LINPUT1 11 = Differential R32 (20h) ADC Signal Path Control (Left) 5:4 LMICBOOST 00 Left Channel Microphone Gain Boost 00 = Boost off (bypassed) 01 = 13dB boost 10 = 20dB boost 11 = 29dB boost 7:6 RINSEL 00 Right Channel Input Select 00 = RINPUT1 01 = MIC 11 = Differential R33 (21h) ADC Signal Path Control (Right) 5:4 RMICBOOST 00 Right Channel Microphone Gain Boost 00 = Boost off (bypassed) 01 = 13dB boost 10 = 20dB boost 11 = 29dB boost Table 2 Input Software Control MONO MIXING The stereo ADC can operate as a stereo or mono device, or the two channels can be mixed to mono, either in the analogue domain (i.e. before the ADC) or in the digital domain (after the ADC). MONOMIX selects the mode of operation. The user also has the flexibility to select the data output from the audio interface using DATSEL. The default is for left and right channel ADC data to be output, but the interface may also be configured so that e.g. left channel ADC data is output as both left and right data for when an analogue mono mix is selected. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R31 (1Fh) ADC input Mode 7:6 MONOMIX [1:0] 00 00: Stereo 01: Analogue Mono Mix (using left ADC) 10: Analogue Mono Mix (using right ADC) 11: Digital Mono Mix Table 3 Mono Mixing REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R23 (17h) Additional Control (1) 3:2 DATSEL [1:0] 00 00: left data=left ADC; right data =right ADC 01: left data =left ADC; right data = left ADC 10: left data = right ADC; right data =right ADC 11: left data = right ADC; right data = left ADC Table 4 ADC Data Output Configuration |
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