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PCM5121 Datasheet(PDF) 84 Page - Texas Instruments |
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PCM5121 Datasheet(HTML) 84 Page - Texas Instruments |
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84 / 121 page  84 PCM5121, PCM5122 SLAS763C – AUGUST 2012 – REVISED OCTOBER 2018 www.ti.com Product Folder Links: PCM5121 PCM5122 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated 00011: High attenuation x8/x4/x2 interpolation filter with de-emphasis 00100: Reserved 00101: Fixed process flow with configurable parameters 00110: Reserved (do not set) 00111: 8x Ringing-less low latency FIR interpolation filter without de-emphasis 11111: Reserved (do not set) others: Reserved (do not set) Table 87. Page 0 / Register 44 Dec Hex b7 b6 b5 b4 b3 b2 b1 b0 44 2C RSV RSV RSV RSV RSV CMDP2 CMDP1 CMDP0 Reset Value 0 0 0 RSV Reserved Reserved. Do not access. CMDP[2:0] Clock Missing Detection Period These bits set how long both BCK and LRCK keep low before the audio clocks deemed missing and the DAC transitions to powerdown mode. Default value: 000 000: about 1 second 001: about 2 seconds 010: about 3 seconds ... 111: about 8 seconds Table 88. Page 0 / Register 59 Dec Hex b7 b6 b5 b4 b3 b2 b1 b0 59 3B RSV AMTL2 AMTL1 AMTL0 RSV AMTR2 AMTR1 AMTR0 Reset Value 0 0 0 0 0 0 RSV Reserved Reserved. Do not access. AMTL[2:0] Auto Mute Time for Left Channel These bits specify the length of consecutive zero samples at left channel before the channel can be auto muted. The times shown are for 48 kHz sampling rate and will scale with other rates. Default value: 000 000: 21 ms 001: 106 ms 010: 213 ms 011: 533 ms 100: 1.07 sec 101: 2.13 sec 110: 5.33 sec 111: 10.66 sec AMTR[2:0] Auto Mute Time for Right Channel These bits specify the length of consecutive zero samples at right channel before the channel can be auto muted. The times shown are for 48 kHz sampling rate and will scale with other rates. Default value: 000 000: 21 ms 001: 106 ms |
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