SAW Components
SAW IF filter
B1709
80.46 MHz
Data sheet
Matching network1) ((based on four port measurement, quality factors QL = 40, QC = 90)
Cs1
Ls3
Cs1 = 7.5 pF
Lp2 = 240 nH
Lp2
Cp4
L
s3 = 200 nH
Cp4 = 15 pF
Cs1
Ls3
1) The input matching circuit has been designed as a power match of the filter’s input port to 175 Ω. In a second step
it has been optimized in a narrow range in order to operate at 27 Ω with optimum filter performance.
Please read cautions and warnings and
important notes at the end of this document.
4
May 16, 2006
EPCOS [ EPCOS ]
