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WM8904ECS/R 数据表(PDF) 149 Page - Wolfson Microelectronics plc |
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WM8904ECS/R 数据表(HTML) 149 Page - Wolfson Microelectronics plc |
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149 / 188 page  Pre-Production WM8904 w PP, Rev 3.3, September 2012 149 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R30 (1Eh) DAC Digital Volume Left 8 DAC_VU 0 DAC Volume Update Writing a 1 to this bit causes left and right DAC volume to be updated simultaneously DAC Digital Volume Control 7:0 DACL_VOL [7:0] 1100_0000 Left DAC Digital Volume 00h = Mute 01h = -71.625dB 02h = -71.250dB … (0.375dB steps) C0h to FFh = 0dB DAC Digital Volume Control Register 1Eh DAC Digital Volume Left REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R31 (1Fh) DAC Digital Volume Right 8 DAC_VU 0 DAC Volume Update Writing a 1 to this bit causes left and right DAC volume to be updated simultaneously DAC Digital Volume Control 7:0 DACR_VOL [7:0] 1100_0000 Right DAC Digital Volume 00h = Mute 01h = -71.625dB 02h = -71.250dB … (0.375dB steps) C0h to FFh = 0dB DAC Digital Volume Control Register 1Fh DAC Digital Volume Right REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R32 (20h) DAC Digital 0 11:8 ADCL_DAC_S VOL [3:0] 0000 Left Digital Sidetone Volume 0000 = -36dB 0001 = -33dB (… 3dB steps) 1011 = -3dB 11XX = 0dB Digital Mixing 7:4 ADCR_DAC_S VOL [3:0] 0000 Right Digital Sidetone Volume 0000 = -36dB 0001 = -33dB (… 3dB steps) 1011 = -3dB 11XX = 0dB Digital Mixing 3:2 ADC_TO_DAC L [1:0] 00 Left DAC Digital Sidetone Source 00 = No sidetone 01 = Left ADC 10 = Right ADC 11 = Reserved Digital Mixing 1:0 ADC_TO_DAC R [1:0] 00 Right DAC Digital Sidetone Source 00 = No sidetone 01 = Left ADC 10 = Right ADC 11 = Reserved Digital Mixing Register 20h DAC Digital 0 |
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