MAX9750 查看數據表（PDF） - Maxim Integrated
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MAX9750 Datasheet PDF : 31 Pages
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2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
Table 3B. MAX9750B Volume Levels
VVOL (V)
VMIN*
VMAX*
HPVDD*
0
0.49
0.49
0.5673
0.5673 0.6447
0.6447
0.722
0.722
0.7994
0.7994 0.8767
0.8767 0.9541
0.9541 1.0314
1.0314 1.1088
1.1088 1.1861
1.1861 1.2635
1.2635 1.3408
1.3408 1.4182
1.4182 1.4955
1.4955 1.5728
1.5728 1.6502
1.6502 1.7275
1.7275 1.8049
1.8049 1.8822
1.8822 1.9596
1.9596 2.0369
2.0369 2.1143
2.1143 2.1916
2.1916
2.269
2.269
2.3463
2.3463 2.4237
2.4237
2.501
2.501
2.5783
2.5783 2.6557
2.6557
2.733
2.733
2.8104
2.8104
3.3
*Based on HPVDD = 3.3V
X = Don’t care.
0.074
0.160
0.183
0.207
0.230
0.253
0.277
0.300
0.324
0.347
0.371
0.394
0.418
0.441
0.464
0.488
0.511
0.535
0.558
0.582
0.605
0.628
0.652
0.675
0.699
0.722
0.746
0.769
0.793
0.816
0.839
0.858
SPEAKER MODE GAIN (dB)
GAIN1 = 0,
GAIN2 = 0
15
14
13
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-32
-36
-40
-44
-48
-52
-56
MUTE
GAIN1 = 1,
GAIN2 = 0
16.5
16
15
14
13
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-32
-36
-40
-44
-48
MUTE
GAIN1 = 0,
GAIN2 = 1
18
17.5
17
16.5
16
15
14
13
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-32
-36
MUTE
GAIN1 = 1
GAIN2 = 1
19.5
19
18.5
18
17.5
17
16.5
16
15
14
13
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
MUTE
HEADPHONE MODE GAIN
(dB)
GAIN1 = X,
GAIN2 = 0
GAIN1 = X,
GAIN2 = 1
0
-1
-2
-3
-5
-7
-9
-11
-13
-15
-17
-19
-21
-23
-25
-27
-29
-31
-33
-35
-37
-39
-41
-43
-47
-51
-55
-59
-63
-67
-71
MUTE
3
2.5
2
1.5
1
0
-1
-2
-3
-5
-7
-9
-11
-13
-15
-17
-19
-21
-23
-25
-27
-29
-31
-33
-35
-37
-39
-41
-43
-47
-51
MUTE
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