EMC1402 Standard Microsystems Corp., EMC1402 Datasheet - Page 33

• Manufacturer Part Number: EMC1402
• Description: 1 Degree C Temperature Sensor With Beta Compensation
• Manufacturer: Standard Microsystems Corp.

1°C Temperature Sensor with Beta Compensation
Datasheet
For CPU substrate transistors that require the BJT transistor model, the ideality factor behaves slightly differently
than for discrete diode-connected transistors. Refer to
APPLICATION NOTE: When measuring a 65nm Intel CPUs, the Ideality Setting should be the default 12h. When
SMSC EMC1402
SETTING
SETTING
0Ch
0Dh
0Eh
0Fh
10h
12h
13h
14h
15h
16h
17h
08h
09h
0Ah
0Bh
0Eh
0Fh
10h
12h
13h
14h
15h
16h
17h
11h
11h
Table 6.18 Substrate Diode Ideality Factor Look-Up Table (BJT Model)
Table 6.17 Ideality Factor Look-Up Table (Diode Model) (continued)
measuring 45nm Intel CPUs, the Ideality Setting should be 15h.
FACTOR
FACTOR
1.0027
1.0040
1.0053
1.0066
1.0080
1.0093
1.0106
1.0133
1.0146
0.9869
0.9882
0.9895
0.9908
0.9921
0.9934
0.9947
0.9960
0.9973
0.9986
1.0000
1.0013
1.0026
1.0039
1.0053
1.0066
1.0119
SETTING
SETTING
1Eh
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
18h
19h
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
DATASHEET
Table 6.18
33
FACTOR
FACTOR
1.0239
1.0253
1.0267
1.0280
1.0293
1.0306
1.0319
1.0332
1.0345
1.0358
1.0079
1.0092
1.0105
1.0120
1.0132
1.0146
1.0159
1.0173
1.0187
1.0200
1.0213
1.0226
1.0239
1.0252
1.0265
1.0278
when using a CPU substrate transistor.
SETTING
SETTING
2Ch
2Dh
2Eh
2Fh
2Ah
2Bh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
28h
29h
30h
31h
32h
33h
34h
35h
36h
37h
Revision 1.30 (05-06-08)
FACTOR
FACTOR
1.0449
1.0462
1.0475
1.0488
1.0501
1.0514
1.0527
1.0540
1.0553
1.0566
1.0291
1.0304
1.0317
1.0330
1.0343
1.0356
1.0369
1.0382
1.0395
1.0408
1.0421
1.0434
1.0447
1.0460
1.0473
1.0486