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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8985GEFL/R датащи(PDF) 103 Page - Wolfson Microelectronics plc |
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WM8985GEFL/R датащи(HTML) 103 Page - Wolfson Microelectronics plc |
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103 / 118 page  Pre-Production WM8985 w PP, Rev 3.4, October 2006 103 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO 5 RIN2INPPGA 1 Connect RIN pin to right channel input PGA negative terminal. 0=RIN not connected to input PGA 1=RIN connected to right channel input PGA amplifier negative terminal. Input Signal Path 4 RIP2INPPGA 1 Connect RIP pin to right channel input PGA amplifier positive terminal. 0 = RIP not connected to input PGA 1 = right channel input PGA amplifier positive terminal connected to RIP (constant input impedance) Input Signal Path 3 0 Reserved. Initialise to 0 2 L2_2INPPGA 0 Connect L2 pin to left channel 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 LIN2INPPGA 1 Connect LIN pin to left channel input PGA negative terminal. 0=LIN not connected to input PGA 1=LIN connected to input PGA amplifier negative terminal. Input Signal Path 0 LIP2INPPGA 1 Connect LIP pin to left channel 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 8 INPPGAU 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 Left channel 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 INPPGAMUTEL 0 Mute control for left channel input PGA: 0=Input PGA not muted, normal operation 1=Input PGA muted (and disconnected from the following input BOOST stage). Input Signal Path 45 (2Dh) 5:0 INPPGAVOLL 010000 Left channel input PGA volume 000000 = -12dB 000001 = -11.25db . 010000 = 0dB . 111111 = 35.25dB Input Signal Path 8 INPPGAU 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 INPPGAZCR 0 Right channel input PGA zero cross enable: 0=Update gain when gain register changes 1=Update gain on 1st zero cross after gain register write. Input Signal Path 46 (2Eh) 6 INPPGAMUTER 0 Mute control for right channel input PGA: 0=Input PGA not muted, normal operation 1=Input PGA muted (and disconnected from the following input BOOST stage). Input Signal Path |
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