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WM8753LEB/RV датащи(PDF) 24 Page - Wolfson Microelectronics plc |
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WM8753LEB/RV датащи(HTML) 24 Page - Wolfson Microelectronics plc |
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24 / 87 page ![]() Advanced Information WM8753L w AI Rev 3.1 June 2004 24 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R2 (02h) Additional Control (1) 8:7 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 8 ADC Data Output Configuration MICROPHONE INPUTS MIC1N MIC1 vmid MICAMP1EN vmid MIC2 MIC2N/ MIC3 vmid MICAMP2EN amp1out amp2out micamp1 vmid micamp2 Figure 6 Internal Microphone Input Circuit There are two microphone pre-amplifiers which can be configured in a variety of ways to accommodate up to 3 single ended or 2 differential microphone inputs. The microphone input circuit is shown in Figure 6. Each microphone preamplifier has a separate enable bit, MICAMP1EN and MICAMP2EN. The gain for each preamp can be set independently using MIC1BOOST and MIC2BOOST. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 8 MICAMP1EN 0 Microphone amplifier 1 enable 0 = Mic1 amp disabled 1 = Mic1 amp enabled R21 (15h) 7 MICAMP2EN 0 Microphone amplifier 2 enable 0 = Mic2 amp disabled 1 = Mic2 amp enabled Table 9 Mic Preamp Enables |
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