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WM8976 датащи(PDF) 97 Page - Wolfson Microelectronics plc |
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WM8976 датащи(HTML) 97 Page - Wolfson Microelectronics plc |
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97 / 108 page ![]() Pre-Production WM8976 w PP Rev 3.0 April 2006 97 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO 8 HPVU N/A LOUT1 and ROUT1 volumes do not update until a 1 is written to HPVU (in reg 52 or 53) Analogue Outputs 7 ROUT1ZC 0 Headphone volume zero cross enable: 1 = Change gain on zero cross only 0 = Change gain immediately Analogue Outputs 6 ROUT1 MUTE 0 Right headphone output mute: 0 = Normal operation 1 = Mute Analogue Outputs 53 (35h) 5:0 ROUT1VOL 111001 Right headphone output volume: 000000 = -57dB ... 111001 = 0dB ... 111111 = +6dB Analogue Outputs 8 SPKVU N/A LOUT2 and ROUT2 volumes do not update until a 1 is written to SPKVU (in reg 54 or 55) Analogue Outputs 7 LOUT2ZC 0 Speaker volume zero cross enable: 1 = Change gain on zero cross only 0 = Change gain immediately Analogue Outputs 6 LOUT2 MUTE 0 Left speaker output mute: 0 = Normal operation 1 = Mute Analogue Outputs 54 (36h) 5:0 LOUT2VOL 111001 Left speaker output volume: 000000 = -57dB ... 111001 = 0dB ... 111111 = +6dB Analogue Outputs 8 SPKVU N/A LOUT2 and ROUT2 volumes do not update until a 1 is written to SPKVU (in reg 54 or 55) Analogue Outputs 7 ROUT2ZC 0 Speaker volume zero cross enable: 1 = Change gain on zero cross only 0 = Change gain immediately Analogue Outputs 6 ROUT2 MUTE 0 Right speaker output mute: 0 = Normal operation 1 = Mute Analogue Outputs 55 (37h) 5:0 ROUT2VOL 111001 Right speaker output volume: 000000 = -57dB ... 111001 = 0dB ... 111111 = +6dB Analogue Outputs 8:7 00 Reserved 6 OUT3MUTE 0 0 = Output stage outputs OUT3 mixer 1 = Output stage muted – drives out VMID. Can be used as VMID buffer in this mode. Analogue Outputs 5:4 00 Reserved 3 OUT4_2OUT3 0 OUT4 mixer output to OUT3 0 = disabled 1= enabled Analogue Outputs 56 (38h) 2 BYPL2OUT3 0 ADC input to OUT3 0 = disabled 1= enabled Analogue Outputs |
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