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| TPA6030A4_07 |
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 TI
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6 page 
TPA6030A4 SLOS395B − DECEMBER 2002 − REVISED JANUARY 2005 www.ti.com 6 VOLUME CONTROL Table 1 shows the functionality of the 32-step volume control. The voltage difference between trip levels is 2.66% of 5VREF, and the difference between gain steps is 2.53 dB. Table 1. Volume Control (VCC = 12 V, No Load, SEDIFF = 0 V, SEMAX = 5VREF) VOLTAGE ON VOLUME PIN AS A PERCENTAGE OF 5VREF SPEAKER VOLUME (dB) HEADPHONE VOLUME (dB) 0−10 −80.00 −86.00 10−12.6 −40.00 −46.00 12.6−15.2 −37.47 −43.47 15.2−18 −34.93 −40.93 18−20.6 −32.40 −38.40 20.6−23.4 −29.87 −35.87 23.4−26 −27.33 −33.33 26−28.6 −24.80 −30.80 28.6−31.4 −22.27 −28.27 31.4−34 −19.73 −25.73 34−36.6 −17.20 −23.20 36.6−39.4 −14.67 −20.67 39.4−42 −12.13 −18.13 42−44.6 −9.60 −15.60 44.6−47.2 −7.07 −13.07 47.2−50 −4.53 −10.53 50−52.6 −2.00 −8.00 52.6−55.4 0.53 −5.47 55.4−58 3.07 −2.93 58−60.6 5.60 −0.40 60.6−63.4 8.13 2.13 63.4−66 10.67 4.67 66−68.6 13.20 7.20 68.6−71.4 15.73 9.73 71.4−74 18.27 12.27 74−76.6 20.80 14.80 76.6−79.4 23.33 17.33 79.4−82 25.87 19.87 82−84.6 28.40 22.40 84.6−87.4 30.93 24.93 87.4−90 33.47 27.47 90−100 36.00 30.00 Refer to the section entitled Volume Control Description in the Application Information section of this data sheet for more details regarding the use of the volume control. |
