參數(shù)資料
型號: AN-01
英文描述: Clock System Design
中文描述: 時鐘系統(tǒng)設(shè)計
文件頁數(shù): 7/8頁
文件大?。?/td> 97K
代理商: AN-01
7
APPLICATION NOTE
AN-01
Micrel
Table A1. Transmission Line Characteristics for Various Traces
Internal Stripline
Parameter
Symbol
Unit
Equation
Example
Dielectric Constant
Er
4.7
Board Thickness
d
inch
0.026
Trace Width
w
inch
0.010
Trace Thickness
t
inch
0.002
Impedance
Z0
ohms
44.278
Delay/Inch
t
PDZ
ns/in
0.1837
Capacitance/Inch
Cz
pF/in
4.149
Inductance/Inch
Lz
nH/in
t
PDZ
Z 0
8.134
Capacitive Load
Cload
pF
3.7
Z with Distributed Capacitive Loading
Z
ohms
32.192
t
PD
/in with Distributed Capacitive
Loading
t
PD
ns/in
0.253
t
PDZ
Z
0
1000
Cz
Cz
+
Cload
t
PDZ
Cz
Cz
+
Cload
Z
0
60
Ln
4
d
0.536
π
w
+ 0.67
π
t
Er
Surface Micro Stripline
Parameter
Symbol
Unit
Equation
Example
Dielectric Constant
Er
4.7
Board Thickness
d
inch
0.012
Trace Width
w
inch
0.010
Trace Thickness
t
inch
Ln5.98
d
0.8
w
+
t
0.002
Impedance
Z0
ohms
69.36
Delay/Inch
t
PDZ
ns/in
0.144
Capacitance/Inch
Cz
pF/in
2.08
Inductance/Inch
Lz
nH/in
t
PDZ
Z 0
9.99
Capacitive Load
Cload
pF
3.7
Z with Distributed Capacitive Loading
Z
ohms
41.61
t
PD
/in with Distributed Capacitive
Loading
t
PD
ns/in
0.24
0.475
Er
+ 0.67
0.08475
t
PDZ
Z
0
1000
Cz
Cz
+
Cload
t
PDZ
Cz
Cz
+
Cload
Z
0
87
Er
+ 1.41
Er
.08475
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