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TLV320AIC3120 Datasheet(PDF) 61 Page - Texas Instruments |
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TLV320AIC3120 Datasheet(HTML) 61 Page - Texas Instruments |
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61 / 160 page  61 TLV320AIC3120 www.ti.com SLAS653B – FEBRUARY 2010 – REVISED AUGUST 2016 Submit Documentation Feedback Product Folder Links: TLV320AIC3120 Detailed Description Copyright © 2010–2016, Texas Instruments Incorporated (1) Mute when D7 = 0 and D6–D0 = 127 (0x7F). Table 7-33. Analog Volume Control for Headphone and Speaker Outputs (for D7 = 1)(1) REGISTER VALUE (D6–D0) ANALOG GAIN (dB) REGISTER VALUE (D6–D0) ANALOG GAIN (dB) REGISTER VALUE (D6–D0) ANALOG GAIN (dB) REGISTER VALUE (D6–D0) ANALOG GAIN (dB) 0 0 30 –15 60 –30.1 90 –45.2 1 –0.5 31 –15.5 61 –30.6 91 –45.8 2 –1 32 –16 62 –31.1 92 –46.2 3 –1.5 33 –16.5 63 –31.6 93 –46.7 4 –2 34 –17 64 –32.1 94 –47.4 5 –2.5 35 –17.5 65 –32.6 95 –47.9 6 –3 36 –18.1 66 –33.1 96 –48.2 7 –3.5 37 –18.6 67 –33.6 97 –48.7 8 –4 38 –19.1 68 –34.1 98 –49.3 9 –4.5 39 –19.6 69 –34.6 99 –50 10 –5 40 –20.1 70 –35.2 100 –50.3 11 –5.5 41 –20.6 71 –35.7 101 –51 12 –6 42 –21.1 72 –36.2 102 –51.4 13 –6.5 43 –21.6 73 –36.7 103 –51.8 14 –7 44 –22.1 74 –37.2 104 –52.2 15 –7.5 45 –22.6 75 –37.7 105 –52.7 16 –8 46 –23.1 76 –38.2 106 –53.7 17 –8.5 47 –23.6 77 –38.7 107 –54.2 18 –9 48 –24.1 78 –39.2 108 –55.3 19 –9.5 49 –24.6 79 –39.7 109 –56.7 20 –10 50 –25.1 80 –40.2 110 –58.3 21 –10.5 51 –25.6 81 –40.7 111 –60.2 22 –11 52 –26.1 82 –41.2 112 –62.7 23 –11.5 53 –26.6 83 –41.7 113 –64.3 24 –12 54 –27.1 84 –42.1 114 –66.2 25 –12.5 55 –27.6 85 –42.7 115 –68.7 26 –13 56 –28.1 86 –43.2 116 –72.2 27 –13.5 57 –28.6 87 –43.8 117–127 –78.3 28 –14 58 –29.1 88 –44.3 29 –14.5 59 –29.6 89 –44.8 7.3.12.11.3 Class-D Speaker Analog Output Volume Control For the speaker outputs, the analog volume control has a range from 0 dB to –78 dB in 0.5-dB steps for most of the useful range plus mute, as seen in Table 7-33. The implementation includes soft-stepping logic. Routing the DAC output signal to the analog volume control is done by writing to page 1 / register 35, bit D7-D6. Changing the analog volume for the speaker is controlled by writing to page 1 / register 38, bits D6–D0. Routing the signal from the output of the analog volume control to the input of the speaker amplifier is done by writing to page 1 / register 38, bit D7. The analog volume-control soft-stepping time is based on the setting in page 0 / register 63, bits D1–D0. |
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