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WM8960 データシート(PDF) 36 Page - Wolfson Microelectronics plc |
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WM8960 データシート(HTML) 36 Page - Wolfson Microelectronics plc |
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36 / 92 page ![]() WM8960 Production Data w PD, August 2013, Rev 4.2 36 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R34 (22h) Left Output Mixer Control 8 LD2LO 0 Left DAC to Left Output Mixer 0 = Disable (Mute) 1 = Enable Path 7 LI2LO 0 LINPUT3 to Left Output Mixer 0 = Disable (Mute) 1 = Enable Path 6:4 LI2LOVOL [2:0] 101 (-15dB) LINPUT3 to Left Output Mixer Volume 000 = 0dB ...(3dB steps) 111 = -21dB R45 (2Dh) Bypass (1) 7 LB2LO 0 Left Input Boost Mixer to Left Output Mixer 0 = Disable (Mute) 1 = Enable Path 6:4 LB2LOVOL [2:0] 101 (-15dB) Left Input Boost Mixer to Left Output Mixer Volume 000 = 0dB ...(3dB steps) 111 = -21dB R37 (25h) Right Output Mixer Control 8 RD2RO 0 Right DAC to Right Output Mixer 0 = Disable (Mute) 1 = Enable Path 7 RI2RO 0 RINPUT3 to Right Output Mixer 0 = Disable (Mute) 1 = Enable Path 6:4 RI2ROVOL [2:0] 101 (-15dB) RINPUT3 to Right Output Mixer Volume 000 = 0dB ...(3dB steps) 111 = -21dB R46 (2Eh) Bypass (2) 7 RB2RO 0 Right Input Boost Mixer to Right Output Mixer 0 = Disable (Mute) 1 = Enable Path 6:4 RB2ROVOL [2:0] 101 (-15dB) Right Input Boost Mixer to Right Output Mixer Volume 000 = 0dB ...(3dB steps) 111 = -21dB Table 22 Left and Right Output Mixer Mute and Volume Control The mono output mixer can output, left, right, left+right or a buffered VMID. 0dB or 6dB attenuation is selectable using MOUTVOL register bit. It is recommended to attenuate a mono mix of left and right channels by 6dB in order to prevent clipping. This attenuation control (MOUTVOL) should not be modified while OUT3 is enabled as this may cause an audible click noise. |
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