參數(shù)資料
型號(hào)： S2080
廠商： Applied Micro Circuits Corp.
英文描述： 34×34 3.2 Gbit/s Differential Crosspoint Switch(高達(dá)3.2 Gbit/s數(shù)據(jù)傳送速率的34×34差分交叉開(kāi)關(guān))
中文描述： 34 × 34 3.2 Gbit / s的微分交叉點(diǎn)開(kāi)關(guān)（高達(dá)3.2 Gbit / s的數(shù)據(jù)傳送速率的34 × 34差分交叉開(kāi)關(guān)）
文件頁(yè)數(shù)： 17/28頁(yè)
文件大?。?/td> 884K
代理商： S2080
17
S2080
34 X 34 3.2 GBIT/S DIFFERENTIAL CROSSPOINT SWITCH
February 15, 2001 / Revision A
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θ
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3
2
0
3
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8
8
0
7
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7
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8
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4
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9
7
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Table 10. S2080 Power Dissipation vs. Air Flow, No Heat Sink
THERMAL MANAGEMENT
The S2080 requires thermal management. An example is provided on how to select the proper heat sink for
specific system requirements (see page 18). The heat sink used in the example is available from:
Name: Aavid/Thermalloy
Address: 2021 W. Valley View Lane
City, State Zip: Dallas, TX 75234
Airflow requirement is determined by
Pd = (T
j max
- T
a max
) /
θ
ja
,
θ
ja
=
θ
jc
+
θ
ca
θ
sa (required) =
θ
ja
-
θ
jc
-
θ
cs
where
T
j max
is the maximum junction temperature
T
a max
is the maximum ambient temperature
θ
ja
is the thermal resistance from junction to ambient
θ
jc
is the thermal resistance from junction to case
θ
ca
is the thermal resistance from case to ambient (if a heat sink is used, this is
θ
sa
- sink to ambient)
θ
cs
is the thermal resistance from case to sink.
θ
sa
is the thermal resistance from sink to ambient.
Tables 10 and 11 show the max package power vs. airlfow (with and without heat sink), calculated using the
equation above with T
j max
= 125 C and T
a max
= 70 C. In order to successfully use the S2080, the max
package power must exceed the specified max power dissipation of the device, which is determined by the
output swing setting (see Tables 13 and 14). The dimensions of the heat sink are provided in Table 11.
Phone: (858) 271-0333
Fax: (949) 888-3321
Email: jaldridge@englishsales.com
Web: www.englishsales.com
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