Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Datasheet
Appendix A ADC Voltage Conversion
Table A.1 Analog-to-Digital Voltage Conversions for Hardware Monitoring Block
INPUT VOLTAGE
A/D OUTPUT
12 VIN
<0.062
5 VIN
VCC
2.5 VIN
<0.013
VCCPIN
<0.012
Decimal
Binary
<0.026
<0.0172
0
1
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
…
0.062–0.125
0.125–0.188
0.188–0.250
0.250–0.313
0.313–0.375
0.375–0.438
0.438–0.500
0.500–0.563
…
0.026–0.052
0.052–0.078
0.078–0.104
0.104–0.130
0.130–0.156
0.156–0.182
0.182–0.208
0.208–0.234
…
0.017–0.034
0.034–0.052
0.052–0.069
0.069–0.086
0.086–0.103
0.103–0.120
0.120–0.138
0.138–0.155
…
0.013–0.026
0.026–0.039
0.039–0.052
0.052–0.065
0.065–0.078
0.078–0.091
0.091–0.104
0.104–0.117
…
0.012–0.023
0.023–0.035
0.035–0.047
0.047–0.058
0.058–0.070
0.070–0.082
0.082–0.093
0.093–0.105
…
2
3
4
5
6
7
8
…
4.000–4.063
…
1.666–1.692
…
1.100–1.117
…
0.833–0.846
…
0.749–0.761
…
64 (1/4 Scale) 0100 0000
…
…
8.000–8.063
3.330–3.560
2.200–2.217
1.667–1.680
1.499–1.511
128 (1/2
Scale)
1000 0000
…
…
…
…
…
…
…
12.000–
12.063
5.000–5.026
3.300–3.317
2.500–2.513
2.249–2.261
192 (3/4
Scale)
1100 0000
…
…
…
…
…
…
…
15.312–
15.375
6.380–6.406
4.210–4.230
3.190–3.203
2.869–2.881
245
1111 0101
15.375–
15.437
6.406–6.432
6.432–6.458
6.458–6.484
6.484–6.510
6.510–6.536
6.536–6.562
4.230–4.245
4.245–4.263
4.263–4.280
4.280–4.300
4.300–4.314
4.314–4.330
3.203–3.216
3.216–3.229
3.229–3.242
3.242–3.255
3.255–3.268
3.268–3.281
2.881–2.893
2.893–2.905
2.905–2.916
2.916–2.928
2.928–2.940
2.940–2.951
246
247
248
249
250
251
1111 0110
1111 0111
1111 1000
1111 1001
1111 1010
1111 1011
15.437–
15.500
15.500–
15.563
15.625–
15.625
15.625–
15.688
15.688–
15.750
SMSC EMC6D102
Revision 0.4 (04-05-05)
DATA8S3HEET
SMSC [ SMSC CORPORATION ]
