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WM8946ECS/R Datasheet(PDF) 138 Page - Wolfson Microelectronics plc |
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WM8946ECS/R Datasheet(HTML) 138 Page - Wolfson Microelectronics plc |
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138 / 175 page  WM8946 Production Data w PD, July 2012, Rev 4.3 138 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R46 (2Eh) SPK mixer control4 8 AUX1_TO_SP KR_ATTEN 0 AUX1 Audio Input to Right Speaker Output attenuation 0 = 0dB 1 = -6dB attenuation 7 PGAR_TO_SP KR_ATTEN 0 Right Speaker PGA Mixer to Right Speaker Output attenuation 0 = 0dB 1 = -6dB attenuation 6 BYPR_TO_PG AR_ATTEN 0 Right Input PGA (ADC bypass) to Right Speaker PGA Mixer attenuation 0 = 0dB 1 = -6dB attenuation 3 DACL_TO_PG AR_ATTEN 0 Left DAC to Right Speaker PGA Mixer attenuation 0 = 0dB 1 = -6dB attenuation 2 DACR_TO_PG AR_ATTEN 0 Right DAC to Right Speaker PGA Mixer attenuation 0 = 0dB 1 = -6dB attenuation 1 AUX2_TO_PG AR_ATTEN 0 AUX2 Audio Input to Right Speaker PGA Mixer attenuation 0 = 0dB 1 = -6dB attenuation 0 AUX1_TO_PG AR_ATTEN 0 AUX1 Audio Input to Right Speaker PGA Mixer attenuation 0 = 0dB 1 = -6dB attenuation Register 2Eh SPK mixer control4 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R47 (2Fh) Left SPK volume ctrl 8 SPK_VU 0 Speaker PGA Volume Update Writing a 1 to this bit will cause the Left and Right Speaker PGA volumes to be updated simultaneously. 7 SPKL_ZC 0 Left Speaker PGA Zero Cross Detector 0 = Change gain immediately 1 = Change gain on zero cross only 6 SPKL_PGA_M UTE 1 Left Speaker PGA Mute 0 = Disable Mute 1 = Enable Mute 5:0 SPKL_VOL[5:0 ] 11_1001 Left Speaker PGA Volume 00_0000 = -57dB gain 00_0001 = -56dB … 11_1001 = 0dB ... 11_1111 = +6dB Register 2Fh Left SPK volume ctrl |
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