X3402 Datasheet, PDF(5/9 Page) EPCOS

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X3402 Datasheet, PDF (5/9 Pages) EPCOS – SAW IF filter

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SAW Components

X3402

SAW IF filter

72.54 and 80.46 MHz

Data sheet

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

Cs4

TDM1

Cs1

27 â¦

Lp2

Cs1

Lp3

1 kâ¦

Cs4

Cs6

Lp5

1 kâ¦

Cs1 = 68 pF

Lp2 = 82 nH

Lp3 = 680 nH

Cs4 = 5.6 pF

Lp5 = 520 nH

Cs6 = 4.7 pF

Cs6

TDM2

1) The input matching circuit has been designed as a power match of the filterâs input port to 175 â¦. In a second step

it has been optimized in a narrow range in order to operate at 27 â¦ input termination with optimum filter perfor-

mance.

Please read cautions and warnings and

important notes at the end of this document.

5 February 26, 2007

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