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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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WM8994ECS/R Datenblatt(PDF) 112 Page - Cirrus Logic |
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WM8994ECS/R Datenblatt(HTML) 112 Page - Cirrus Logic |
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112 / 363 page  WM8994 112 Rev 4.6 ANALOGUE OUTPUT SIGNAL PATH The WM8994 output routing and mixers provide a high degree of flexibility, allowing operation of many simultaneous signal paths through the device to a variety of analogue outputs. The outputs include a ground referenced headphone driver, two switchable class D/AB loudspeaker drivers, an ear speaker driver and four highly flexible line drivers. See “Analogue Outputs” for further details of these outputs. The WM8994 output signal paths and control registers are illustrated in Figure 31. LINEOUT1N LINEOUT1P HPOUT1L HPOUT1R HPOUT2N IN1R IN1L MIXINR MIXINL REC L REC R DAC1L DAC1R Ground Loop Noise Rejection HPOUT2P DC Offset Correction SPKOUTLP SPKOUTLN + + Direct Voice Direct Voice SPKOUTRP SPKOUTRN Direct Voice Direct Voice + + IN1LP IN1LN IN1RN IN2LN IN2RN IN1RP IN2LP/VRXN IN2RP/VRXP SPKMIXL SPKMIXR MIXOUTL MIXOUTR LINEOUT1NMIX LINEOUT1PMIX HPOUT2MIX Headphone Ground Loop Noise Rejection Feedback SPKOUTLBOOST SPKOUTRBOOST Ground Loop Noise Rejection DC Offset Correction MIXOUTLVOL HPOUT1LVOL SPKLVOL MIXOUTRVOL HPOUT1RVOL SPKRVOL Direct DAC L Direct DAC R LINEOUT2N LINEOUT2P + LINEOUT2NMIX LINEOUT2PMIX Line Output Ground Loop Noise Rejection Feedback + + HPOUT1R_ENA LINEOUT2P_ENA DAC1L_TO_HPOUT1L HPOUT1L_MUTE_N HPOUT1L_VOL[5:0] LINEOUT2_MODE LINEOUT2N_MUTE LINEOUT2P_MUTE LINEOUT2_VOL HPOUT2_MUTE HPOUT2_VOL MIXOUTL_MUTE_N MIXOUTL_VOL[5:0] SPKMIXL_TO_SPKOUTR SPKMIXR_TO_SPKOUTR SPKOUTR_BOOST[2:0] SPKOUTL_MUTE_N SPKOUTL_VOL[5:0] DAC1R_TO_MIXOUTR / DAC1R_MIXOUTR_VOL[2:0] IN2LRP_TO_HPOUT2 MIXOUTR_TO_LINEOUT2P MIXINR_TO_SPKMIXR / MIXINR_SPKMIXR_VOL Ground Loop Noise Rejection Ground Loop Noise Rejection Ground Loop Noise Rejection Ground Loop Noise Rejection MIXINR_TO_MIXOUTL / MIXINR_MIXOUTL_VOL[2:0] DAC1R_TO_HPOUT1R HPOUT1R_MUTE_N HPOUT1R_VOL[5:0] MIXOUTR_MUTE_N MIXOUTR_VOL[5:0] MIXOUTLVOL_TO_HPOUT2 MIXOUTRVOL_TO_HPOUT2 IN2LRP_TO_SPKOUTR IN2LRP_TO_SPKOUTL SPKMIXL_TO_SPKOUTL SPKMIXR_TO_SPKOUTL SPKOUTL_BOOST[2:0] SPKOUTR_MUTE_N SPKOUTR_VOL[5:0] LINEOUT1_MODE LINEOUT1N_MUTE LINEOUT1P_MUTE LINEOUT1_VOL MIXOUTL_TO_LINEOUT2N MIXOUTR_TO_LINEOUT2N IN1R_TO_LINEOUT2P IN1L_TO_LINEOUT2P MIXOUTL_TO_LINEOUT1N MIXOUTR_TO_LINEOUT1N IN1R_TO_LINEOUT1P IN1L_TO_LINEOUT1P MIXOUTL_TO_LINEOUT1P SPKOUTL_ENA MIXOUTR_ENA MIXINL_TO_SPKMIXL / MIXINL_SPKMIXL_VOL IN1LP_TO_SPKMIXL / IN1LP_SPKMIXL_VOL DAC1L_TO_SPKMIXL / DAC1L_SPKMIXL_VOL MIXOUTL_TO_SPKMIXL / MIXOUTL_SPKMIXL_VOL DAC1L_TO_MIXOUTL / DAC1L_MIXOUTL_VOL[2:0] IN2LN_TO_MIXOUTL / IN2LN_MIXOUTL_VOL[2:0] IN2LP_TO_MIXOUTL / IN2LP_MIXOUTL_VOL[2:0] IN2RN_TO_MIXOUTL / IN2RN_MIXOUTL_VOL[2:0] IN1L_TO_MIXOUTL / IN1L_MIXOUTL_VOL[2:0] IN1R_TO_MIXOUTL / IN1R_MIXOUTL_VOL[2:0] MIXINL_TO_MIXOUTL / MIXINL_MIXOUTL_VOL[2:0] MIXINR_TO_MIXOUTR / MIXINR_MIXOUTR_VOL[2:0] MIXINL_TO_MIXOUTR / MIXINL_MIXOUTR_VOL[2:0] IN1R_TO_MIXOUTR / IN1R_MIXOUTR_VOL[2:0] IN1L_TO_MIXOUTR / IN1L_MIXOUTR_VOL[2:0] IN2RP_TO_MIXOUTR / IN2RP_MIXOUTR_VOL[2:0] IN2RN_TO_MIXOUTR / IN2RN_MIXOUTR_VOL[2:0] IN2LN_TO_MIXOUTR / IN2LN_MIXOUTR_VOL[2:0] DAC1R_TO_SPKMIXR / DAC1R_SPKMIXR_VOL IN1RP_TO_SPKMIXR / IN1RP_SPKMIXR_VOL SPKRVOL_ENA SPKLVOL_ENA SPKOUTR_ENA MIXOUTLVOL_ENA MIXOUTRVOL_ENA MIXOUTL_ENA HPOUT2_ENA HPOUT1L_ENA LINEOUT1N_ENA LINEOUT1P_ENA LINEOUT2N_ENA HPOUT2_IN_ENA DAC2L DAC2R + + DAC2L_TO_SPKMIXL / DAC2L_SPKMIXL_VOL MIXOUTR_TO_SPKMIXR / MIXOUTR_SPKMIXR_VOL DAC2R_TO_SPKMIXR / DAC2R_SPKMIXR_VOL SPKMIXL_VOL[1:0] SPKMIXR_VOL[1:0] + + Figure 31 Control Registers for Output Signal Path |
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