B1729 EPCOS AG, B1729 Datasheet - Page 4

• Manufacturer Part Number: B1729
• Description: Saw If Filter
• Manufacturer: EPCOS AG

Data sheet
Matching network
1) The input matching circuit has been designed as a power match of the filter’s input port to 175
Please read cautions and warnings and
important notes at the end of this document.
SAW Components
SAW IF filter
it has been optimized in a narrow range in order to operate at 27
C
C
s1
s1
L
p2
1)
((based on four port measurement, quality factors Q
4
L
L
C
s3
s3
p4
December 27, 2006
with optimum filter performance.
C
L
L
C
p2
s3
s1
p4
L
= 240 nH
= 200 nH
= 7.5 pF
= 15 pF
= 40, Q
C
. In a second step
80.46 MHz
= 90)
B1729