PT2305 데이터 시트보기 (PDF) - Princeton Technology
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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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