PT2305 Просмотр технического описания (PDF) - Princeton Technology
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производитель
PT2305 Datasheet PDF : 27 Pages
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2.5W × 2 Class AB Audio Power Amplifier
PT2305
VOLUME CONTROL TABLE
Step
1
2
Gain
(dB)
0
-1
Voltage Range (%VDD)
Low High Recommended
77.5 % 100.00 % 100.000%
75.0 % 78.5 %
76.875 %
3
-2 72.5 % 76.25 %
74.375 %
4
-3 70.0 % 73.75 %
71.875 %
5
-4 67.5 % 71.25 %
69.375 %
6
-5 65.0 % 68.75 %
66.875 %
7
-6 62.5 % 66.25 %
64.375 %
8
-8 60.5 % 63.75 %
61.875 %
9 -10 57.5 % 61.25 %
59.375 %
10 -12 55.0 % 58.75 %
56.875 %
11 -14 52.5 % 56.25 %
54.375 %
12 -16 50.0 % 53.75 %
51.875 %
13 -18 47.5 % 51.25 %
49.375 %
14 -20 45.0 % 48.75 %
46.875 %
15 -22 42.5 % 46.25 %
44.375 %
16 -24 40.0 % 43.75 %
41.875 %
17 -26 37.5 % 41.25 %
39.375 %
18 -28 35.0 % 38.75 %
36.875 %
19 -30 32.5 % 36.25 %
34.375 %
20 -32 30.0 % 33.75 %
21 -34 27.5 % 31.25 %
22 -36 25.0 % 28.75 %
23 -39 22.5 % 26.25 %
31.875 %
29.375 %
26.875 %
24.375 %
24 -42 20.0 % 23.75 %
21.875 %
25 -45 17.5 % 21.25 %
19.375 %
26 -47 15.0 % 18.75 %
16.875 %
27 -51 12.5 % 16.25 %
14.375 %
28 -56 10.0 % 13.75 %
11.875 %
29 -61 7.5 % 11.25 %
9.375 %
30 -66 5.0 % 8.75 %
6.875 %
31 -78 0.0 % 6.25 %
0.000 %
Voltage Range (VDD=5V)
Low High Recommended
3.875 5.000
5.000
3.750 3.938
3.844
3.625 3.813
3.719
3.500 3.688
3.594
3.375 3.563
3.469
3.250 3.438
3.344
3.125 3.313
3.219
3.000 3.188
3.094
2.875 3.063
2.969
2.750 2.938
2.844
2.625 2.813
2.719
2.500 2.688
2.594
2.375 2.563
2.469
2.250 2.438
2.344
2.125 2.313
2.219
2.000 2.188
2.094
1.875 2.063
1.969
1.750 1.938
1.844
1.625 1.813
1.719
1.500 1.688
1.594
1.375 1.563
1.469
1.250 1.438
1.344
1.125 1.313
1.219
1.000 1.188
1.094
0.875 1.063
0.969
0.750 0.937
0.844
0.625 0.812
0.719
0.500 0.687
0.594
0.375 0.562
0.469
0.250 0.437
0.344
0.000 0.312
0.000
Voltage Range (VDD=3V)
Low High Recommended
2.325 3.000
3.000
2.250 2.363
2.306
2.175 2.288
2.231
2.100 2.213
2.156
2.025 2.138
2.081
1.950 2.063
2.006
1.875 1.988
1.931
1.800 1.913
1.856
1.725 1.838
1.781
1.650 1.763
1.706
1.575 1.688
1.631
1.500 1.613
1.556
1.425 1.538
1.481
1.350 1.463
1.406
1.275 1.388
1.331
1.200 1.313
1.256
1.125 1.238
1.181
1.050 1.163
1.106
0.975 1.088
1.031
0.900 1.013
0.956
0.825 0.937
0.881
0.750 0.862
0.806
0.675 0.787
0.731
0.600 0.712
0.656
0.525 0.637
0.581
0.450 0.562
0.506
0.375 0.487
0.431
0.300 0.412
0.356
0.225 0.337
0.281
0.150 0.262
0.206
0.000 0.187
0.000
PT2305 V1.1
-6-
May, 2005
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