LM4682SQBD National Semiconductor, LM4682SQBD Datasheet - Page 15

• Manufacturer Part Number: LM4682SQBD
• Description: BOARD EVALUATION LM4682SQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4682SQBD

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 10W x 2 @ 8 Ohm; 80mW x 2 @ 32 Ohm
• Voltage - Supply: 8.5 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4682
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Step
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
77.50%
75.00%
72.50%
70.00%
67.50%
65.00%
62.50%
60.00%
57.50%
55.00%
52.50%
50.00%
47.50%
45.00%
42.50%
40.00%
37.50%
35.00%
32.50%
30.00%
27.50%
25.00%
22.50%
20.00%
17.50%
15.00%
12.50%
10.00%
7.50%
5.00%
0.00%
Low
Voltage Range (% of VOLVDD)
100.00%
78.50%
76.25%
73.75%
71.25%
68.75%
66.25%
63.75%
61.25%
58.75%
56.25%
53.75%
51.25%
48.75%
46.25%
43.75%
41.25%
38.75%
36.25%
33.75%
31.25%
28.75%
26.25%
23.75%
21.25%
18.75%
16.25%
13.75%
11.25%
8.75%
6.25%
High
Recommended
100.000%
76.875%
74.375%
71.875%
69.375%
66.875%
64.375%
61.875%
59.375%
56.785%
54.375%
51.875%
49.375%
46.875%
44.375%
41.875%
39.375%
36.875%
34.375%
31.875%
29.375%
26.875%
24.375%
21.875%
19.375%
16.875%
14.375%
11.875%
9.375%
6.875%
0.000%
TABLE 2. Volume Control Table
3.875
3.750
3.625
3.500
3.375
3.250
3.125
3.000
2.875
2.750
2.625
2.500
2.375
2.250
2.125
2.000
1.875
1.750
1.625
1.500
1.375
1.250
1.125
1.000
0.875
0.750
0.625
0.500
0.375
0.250
0.000
Low
Voltage Range (V), VOLVDD = 5V
15
5.000
3.925
3.813
3.688
3.563
3.438
3.313
3.188
3.063
2.983
2.813
2.688
2.563
2.438
2.313
2.188
2.063
1.938
1.813
1.688
1.563
1.438
1.313
1.188
1.063
0.938
0.813
0.688
0.563
0.438
0.313
High
Recommended
5.000
3.844
3.719
3.594
3.469
3.344
3.219
3.094
2.969
2.844
2.719
2.594
2.469
2.344
2.219
2.094
1.969
1.844
1.719
1.594
1.469
1.344
1.219
1.094
0.969
0.844
0.719
0.594
0.469
0.344
0.000
Amplifier
Class D
–12.06
–14.84
–17.36
–20.89
–26.92
–32.95
–38.97
–48.03
29.97
28.97
27.97
26.96
25.98
24.97
23.95
21.98
19.95
17.96
15.97
13.99
11.99
–0.02
–2.11
–4.16
–5.97
–8.77
9.95
7.96
5.96
3.99
2.03
Gain (dB)
Headphone
Amplifier
www.national.com
–10.95
–12.91
–14.87
–16.92
–19.02
–21.06
–22.87
–25.68
–28.96
–31.75
–34.26
–37.79
–43.83
–49.85
–55.88
–64.94
13.06
12.07
11.07
10.06
–0.93
–2.91
–4.91
–6.96
–8.94
9.07
8.07
7.05
5.08
3.05
1.06