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PCM5310PAPR Datasheet(PDF) 52 Page - Texas Instruments |
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PCM5310PAPR Datasheet(HTML) 52 Page - Texas Instruments |
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52 / 103 page  Register 30 (1Eh) Register 31 and 32 (1Fh and 20h) PCM5310 SLES244 – FEBRUARY 2009 ............................................................................................................................................................................................ www.ti.com REG HEX DESCRIPTION B7 B6 B5 B4 B3 B2 B1 B0 30 1Eh Headphone output volume control HUPE RSV HSUR HSUL RSV RSV RSV HZRS HUPE: Headphone Volume Update Control Enable HSUR: Headphone Volume Setting Update for Headphone Output, R-Channel HSUL: Headphone Volume Setting Update for Headphone Output, L-Channel HZRS: Headphone Volume Zero Cross Enable The volume level of the headphone output can be changed independently to any level by setting HMUL/HMUR and HVOL[6:0]/HVOR[6:0] when HUPE = '0'. When HUPE = '1', the volume level is changed to any level at the same time when HSUR = '1' or HSUL = '1'. Both bits are automatically set to '0' after being set to '1'. HSUR and HSUL must be set to '1' for every volume level setting during HUPE = '1'. Default value of HUPE and HZRS: 1. Default value of HSUR and HSUL: 0 HUPE = 0 Headphone volume update control disable HUPE = 1 Headphone volume update control enable (default) HSUR, HSUL = 0 No update volume setting data (default) HSUR, HSUL = 1 Update volume setting data (set to '0' automatically after setting to '1') HZRS = 0 Headphone volume zero crossing disable HZRS = 1 Headphone volume zero crossing enable (default) REG HEX DESCRIPTION B7 B6 B5 B4 B3 B2 B1 B0 Headphone mute and volume level setting for 31 1Fh HMUL HVOL[6:0] R-channel Headphone mute and volume level setting for 32 20h HMUR HVOR[6:0] L-channel HMUL: Headphone Volume Mute Control for L-Channel HMUR: Headphone Volume Mute Control for R-Channel The headphone output can be independently muted to zero level when HMUL and HMUR = '1'. These settings take precedence over volume level settings by HVOL and HVOR. The headphone output may have audible zipper noise while changing levels. This noise can be reduced by selecting zero-crossing detection (Register 30, HZRS). Default value: 0 0 Mute disabled (default) 1 Mute enabled HVOL[6:0]: Headphone Volume Level Control for L-Channel HVOR[6:0]: Headphone Volume Level Control for R-Channel The headphone output can be independently programmed to between 12 dB to –70 dB in 1-dB steps. The headphone output may have audible zipper noise while changing levels. This noise can be reduced by selecting zero-crossing detection (Register 30, HZRS). Default value: 010 1101 52 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): PCM5310 |
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