參數(shù)資料
型號: AXDA2000DKT3D
英文描述: Microprocessor
中文描述: 微處理器
文件頁數(shù): 95/104頁
文件大?。?/td> 1769K
代理商: AXDA2000DKT3D
Appendix A - Thermal Diode Calculations
81
25175E—November 2002
AMD Athlon XP Processor Model 8 Data Sheet
Preliminary Information
The formulas in Equation (3) and Equation (4) can be used to
calculate the temperature offset for temperature sensors that
do not employ series resistance cancellation. The result is
added to the value measured by the temperature sensor.
Contact the vendor of the temperature sensor being used for
the value of n
f,TS
. Refer to the document,
On-Die Thermal Diode
Characterization
, order# 25443, for further details.
Equation (3) shows the equation for calculating the lumped
ideality factor (n
f, lumped
) in sensors that do not employ series
resistance cancellation.
Equation (4) shows the equation for calculating temperature
offset (T
offset
) in sensors that do not employ series resistance
cancellation.
Equation (5) is the temperature offset for temperature sensors
that utilize series resistance cancellation. Add the result to the
value measured by the temperature sensor. Note that the value
of n
f,TS
in Equation (5) may not equal the value used in
Equation (4).
(3)
n
f lumped
n
f actual
=
R
T
I
high
I
low
(
)
k
q
--
T
die spec
273.15
+
(
)
I
high
I
low
-------
ln
----------------------------------------------------------------------
+
(4)
T
offset
T
die spec
273.15
+
(
)
=
1
f lumped
n
f TS
---------------
(5)
T
offset
T
die spec
273.15
+
(
)
=
1
n
f
actual
,
n
f TS
---------------
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