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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8976CGEFL/V датащи(PDF) 98 Page - Wolfson Microelectronics plc |
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WM8976CGEFL/V датащи(HTML) 98 Page - Wolfson Microelectronics plc |
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98 / 114 page  WM8976 Production Data w PD, Rev 4.5, November 2011 98 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO 5 MUTERPGA 2INV 0 Mute input to INVROUT2 mixer Analogue Outputs 4 INVROUT2 0 Mute input to INVROUT2 mixer Analogue Outputs 3:1 BEEPVOL 000 AUXR input to ROUT2 inverter gain 000 = -15dB ... 111 = +6dB Analogue Outputs 0 BEEPEN 0 0 = mute AUXR beep input 1 = enable AUXR beep input Analogue Outputs 44 (2Ch) 8 MBVSEL 0 Microphone Bias Voltage Control 0 = 0.9 * AVDD 1 = 0.6 * AVDD Input Signal Path 7:3 00000 Reserved 2 L2_2INP PGA 0 Connect L2 pin to input PGA positive terminal. 0=L2 not connected to input PGA 1=L2 connected to input PGA amplifier positive terminal (constant input impedance). Input Signal Path 1 LIN2INP PGA 1 Connect LIN pin to input PGA negative terminal. 0=LIN not connected to input PGA 1=LIN connected to input PGA amplifier negative terminal. Input Signal Path 0 LIP2INP PGA 1 Connect LIP pin to input PGA amplifier positive terminal. 0 = LIP not connected to input PGA 1 = input PGA amplifier positive terminal connected to LIP (constant input impedance) Input Signal Path 45 (2Dh) 8 INPPGA UPDATE N/A INPPGAVOLL and INPPGAVOLR volume do not update until a 1 is written to INPPGAUPDATE (in reg 45 or 46) Input Signal Path 7 INPPGAZCL 0 Input PGA zero cross enable: 0=Update gain when gain register changes 1=Update gain on 1 st zero cross after gain register write. Input Signal Path 6 INPPGA MUTEL 0 Mute control for input PGA: 0=Input PGA not muted, normal operation 1=Input PGA muted (and disconnected from the following input BOOST stage). Input Signal Path 5:0 INPPGA VOLL 010000 Input PGA volume 000000 = -12dB 000001 = -11.25db . 010000 = 0dB . 111111 = 35.25dB Input Signal Path 46 (2Eh) 8:0 00001000 0 Reserved 47 (2Fh) 8 PGA BOOSTL 1 Boost enable for input PGA: 0 = PGA output has +0dB gain through input BOOST stage. 1 = PGA output has +20dB gain through input BOOST stage. Input Signal Path 7 0 Reserved |
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