參數(shù)資料
型號(hào): TPA6030A4PWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
封裝: GREEN, PLASTIC, TSSOP-28
文件頁(yè)數(shù): 29/32頁(yè)
文件大?。?/td> 698K
代理商: TPA6030A4PWPR
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)
010
80.00
86.00
1012.6
40.00
46.00
12.615.2
37.47
43.47
15.218
34.93
40.93
1820.6
32.40
38.40
20.623.4
29.87
35.87
23.426
27.33
33.33
2628.6
24.80
30.80
28.631.4
22.27
28.27
31.434
19.73
25.73
3436.6
17.20
23.20
36.639.4
14.67
20.67
39.442
12.13
18.13
4244.6
9.60
15.60
44.647.2
7.07
13.07
47.250
4.53
10.53
5052.6
2.00
8.00
52.655.4
0.53
5.47
55.458
3.07
2.93
5860.6
5.60
0.40
60.663.4
8.13
2.13
63.466
10.67
4.67
6668.6
13.20
7.20
68.671.4
15.73
9.73
71.474
18.27
12.27
7476.6
20.80
14.80
76.679.4
23.33
17.33
79.482
25.87
19.87
8284.6
28.40
22.40
84.687.4
30.93
24.93
87.490
33.47
27.47
90100
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.
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