AK2571 Datasheet, PDF (19/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
Table 4-6 Temperature corresponding to code of ADC (Thermister: R0=10kohm@25degree,B=3900)
R_ATC_OFFSET Offset voltage Temperature [degree] (typ)
[V]
ADC=0
ADC=96
ADC=128 ADC=160
0
0.30
-7.6
-3.2
-1.9
-0.6
1
0.33
-5.6
-1.5
-0.2
1.0
2
0.36
-3.8
0.2
1.4
2.6
3
0.39
-2.0
1.8
2.9
4.1
4
0.42
-0.3
3.3
4.4
5.5
5
0.45
1.3
4.7
5.8
6.9
6
0.48
2.8
6.2
7.2
8.3
7
0.51
4.3
7.5
8.6
9.6
8
0.54
5.7
8.9
9.9
10.9
9
0.57
7.1
10.2
11.2
12.2
10
0.60
8.5
11.5
12.5
13.4
11
0.63
9.8
12.7
13.7
14.6
12
0.66
11.1
14.0
14.9
15.8
13
0.69
12.4
15.2
16.1
17.0
14
0.72
13.6
16.4
17.3
18.2
15
0.75
14.8
17.6
18.5
19.4
16
0.78
16.0
18.8
19.6
20.5
17
0.81
17.2
19.9
20.8
21.7
18
0.84
18.4
21.1
21.9
22.8
19
0.87
19.6
22.2
23.1
24.0
20
0.90
20.7
23.4
24.2
25.1
21
0.93
21.9
24.5
25.4
26.2
22
0.96
23.0
25.6
26.5
27.4
23
0.99
24.1
26.8
27.6
28.5
24
1.02
25.3
27.9
28.8
29.6
25
1.05
26.4
29.0
29.9
30.8
26
1.08
27.5
30.2
31.0
31.9
27
1.11
28.7
31.3
32.2
33.1
28
1.14
29.8
32.4
33.3
34.2
29
1.16
30.9
33.6
34.5
35.4
30
1.19
32.1
34.7
35.6
36.6
31
1.22
33.2
35.9
36.8
37.7
32
1.25
34.4
37.1
38.0
38.9
33
1.28
35.6
38.3
39.2
40.2
34
1.31
36.7
39.5
40.4
41.4
35
1.34
37.9
40.7
41.7
42.6
36
1.37
39.1
42.0
42.9
43.9
37
1.40
40.3
43.2
44.2
45.2
38
1.43
41.6
44.5
45.5
46.5
39
1.46
42.8
45.8
46.8
47.9
40
1.49
44.1
47.2
48.2
49.3
41
1.52
45.4
48.5
49.6
50.7
42
1.55
46.7
49.9
51.0
52.1
43
1.58
48.1
51.3
52.5
53.6
44
1.61
49.5
52.8
54.0
55.1
45
1.64
50.9
54.3
55.5
56.7
46
1.67
52.3
55.9
57.1
58.4
47
1.70
53.8
57.5
58.7
60.1
ADC=256
3.0
4.5
5.9
7.3
8.7
10.0
11.3
12.5
13.8
15.0
16.2
17.4
18.5
19.7
20.9
22.0
23.2
24.3
25.4
26.6
27.7
28.8
30.0
31.1
32.2
33.4
34.5
35.7
36.9
38.1
39.3
40.5
41.7
43.0
44.3
45.6
46.9
48.3
49.7
51.1
52.5
54.0
55.6
57.2
58.8
60.6
62.3
64.2
<Rev. 0.6E Preliminary>
-19-
2001/11