B1709 Просмотр технического описания (PDF) - EPCOS AG

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производитель

B1709

SAW Components

EPCOS AG 

SAW Components

B1709

SAW IF filter

80.46 MHz

Data sheet

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

Cs1

Lp2

Cs1

Ls3

Cp4

Ls3

Cs1 = 7.5 pF

Lp2 = 240 nH

Ls3 = 200 nH

Cp4 = 15 pF

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

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