B39725B1728H810 datasheet(4/10 Pages) EPCOS

Part #	B39725B1728H810

Description	SAW IF filter Satellite radio

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Manufacturer	EPCOS [EPCOS]

Direct Link	http://www.epcos.com

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4

February 19, 2010

B1728

72.54 MHz

Please read

cautions and warnings and

important notes at the end of this document.

SAW Components

SAW IF filter

Data sheet

Matching network1) (based on four port measurement, quality factors QL = 40, QC = 90)

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.

Cs1

Lp2

Lp3

Cs4

Cs1 = 20 pF

Lp2 = 220 nH

Lp3 = 620 nH

Cs4 = 3.6 pF

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