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ADAU1373BCBZ-R7 数据表(PDF) 56 Page - Analog Devices |
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ADAU1373BCBZ-R7 数据表(HTML) 56 Page - Analog Devices |
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56 / 296 page  ADAU1373 Rev. 0 | Page 56 of 296 MIX/MUX The ADAU1373 provides very flexible mixing and multiplexing of the digital signals to and from the DSP and to and from the codec/Digital Audio Interface A/Digital Audio Interface B/ Digital Audio Interface C. The input mixing and routing matrix allows the digital data from Digital Audio Interface A, Digital Audio Interface B, and Digital Audio Interface C, as well as the ADC and digital microphone, to be selected or mixed to any of the DSP input channels (that is, DSP Channel 0 to DSP Channel 4). Similarly, the output mixing and routing matrix allows the data from DSP Channel 0 to DSP Channel 4 to be mixed and routed to Digital Audio Interface A, Digital Audio Interface B, and Digital Audio Interface C, as well as DAC1 and DAC2. The digital volume controls on each of the inputs, as well as the outputs, can be used to adjust the levels. The soft mode allows the volume to be updated for clickless operation. The routing matrix also allows the data to be looped back from the internal ADC to the DACs or from Digital Audio Interface A to Digital Audio Interface B or Digital Audio Interface C. For recording purposes, the data from the ADC or the digital microphone can be sent to Digital Audio Interface A, Digital Audio Interface B, and Digital Audio Interface C. Similarly, for playback, the data from the ports can be sent to the DACs and then to the analog outputs. The mixing block allows complete record and playback datapaths. INTERFACE_A DSPOUT_CH0 INTERFACE_B INTERFACE_C ADC ADC_LRSWAP DMIC DMICLRSWAP DSPIN_CH0 DSPOUT_CH1 DSPOUT_CH2 DSPOUT_CH3 DSPOUT_CH4 DSP INTERFACE_A INTERFACE_A DSPOUT_CH0 INTERFACE_B INTERFACE_C ADC ADC_LRSWAP DMIC DMICLRSWAP DSPIN_CH1 DSPOUT_CH1 DSPOUT_CH2 DSPOUT_CH3 DSPOUT_CH4 INTERFACE_B INTERFACE_A DSPOUT_CH0 INTERFACE_B INTERFACE_C ADC ADC_LRSWAP DMIC DMICLRSWAP DSPIN_CH2 DSPOUT_CH1 DSPOUT_CH2 DSPOUT_CH3 DSPOUT_CH4 INTERFACE_C INTERFACE_A DSPOUT_CH0 INTERFACE_B INTERFACE_C ADC ADC_LRSWAP DMIC DMICLRSWAP DSPIN_CH3 DSPOUT_CH1 DSPOUT_CH2 DSPOUT_CH3 DSPOUT_CH4 DAC1 INTERFACE_A DSPOUT_CH0 INTERFACE_B INTERFACE_C ADC ADC_LRSWAP DMIC DMICLRSWAP DSPIN_CH4 DSPOUT_CH1 DSPOUT_CH2 DSPOUT_CH3 DSPOUT_CH4 DAC2 Figure 103. Digital Mix/Mux Block |
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