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PCM5310PAPR Datasheet(PDF) 31 Page - Texas Instruments |
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PCM5310PAPR Datasheet(HTML) 31 Page - Texas Instruments |
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31 / 103 page  DAC AND FILTER DAC-1L Interpolation Filter DEM DAC-1R Interpolation Filter DEM DAC-2L Interpolation Filter DEM DAC-2R Interpolation Filter ATT MUTE GAIN DEM ATT MUTE GAIN ATT MUTE GAIN ATT MUTE GAIN PCM5310 www.ti.com ............................................................................................................................................................................................ SLES244 – FEBRUARY 2009 The digital-to-analog converter (DAC) and digital filter include a delta-sigma modulator, interpolation filter, de-emphasis filter (DEM), digital gain control, digital attenuation control, digital soft mute, and digital gain boost, as shown in Figure 38. The digital gain or attenuation control can be adjusted from 20 dB to –100 dB in 0.5-dB steps. To play back low-volume recorded audio data, the digital gain can be used with a boost of either 6 dB, 12 dB, or 18 dB selected through the I2C interface. The descriptions for the DAC and filter registers are shown in Table 14. Figure 38. DACs and Filters Table 15. DAC and Filter Registers REGISTER DESCRIPTION REGISTER NUMBER REGISTER BITS Digital attenuation and gain update control for DAC12 40 D12E, DUC2, DUC1, DZ12 Digital soft mute and boost setting for DAC12 41 DMU2, DMU1, DB12[1:0] Digital attenuation and gain level setting for DAC12 42, 43 DAT2[7:0], DAT1[7:0] De-emphasis filter setting for DAC12 45 DM12, DF12[1:0] Digital attenuation and gain update control for DAC34 50 D34E, DUC4, DUC3, DZ34 Digital soft mute setting for DAC34 51 DMU4, DMU3 Digital attenuation and gain level setting for DAC34 52, 53 DAT4[7:0], DAT3[7:0] De-emphasis filter setting for DAC34 55 DM34, DF34[1:0] Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 31 Product Folder Link(s): PCM5310 |
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