Sichuan Institute of Piezoelectric and Acoustooptic Technology
For BB Filters (F-11 Package)
SP446
Electrical Characteristic:
Characteristic
Nominal Center Frequency
Stop Band Attenuation (from peak level)
1) at DC~(F
0
-30.7)MHz
2) at F
0
+30.7MHz~F
0
+200MHz
Insertion Loss(at F
0
鹵2.0MHz)
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at F
0
鹵2.0
MHz)
Input/Output Impedance (Nominal)
Input/Output Impedance(fig1):
Sym
F
0
Unit
MHz
dB
Spec
446
50min
50min
4.5max
2max
50鈩?/div>
IL
dB
dB
F-11 Package(fig2):
L1 L2=18nH;C1 C2=1pF
This may be changed according to PCB
Frequency Characteristic(fig3):
脙
脙
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