Data Sheet

Part Number 855272

479.75 MHz SAW Filter

Minimum

Typical

Maximum

Unit

Center Frequency

479.25

479.75

480.25

MHz

Insertion Loss

-

9.8

13

dB

1 dB Bandwidth

-

23.3

-

MHz

3 dB Bandwidth

23

25.5

-

MHz

30 dB Bandwidth

-

33

-

MHz

35 dB Bandwidth

-

33.9

36

MHz

Passband Variation

-

0.75

1.5

dB p-p

Group Delay Variation

-

25

50

nsec

-

50

-

Ω

-

50

-

Ω

Temperature Coefficient of Frequency

-

-90

-

Notes:

1.

All specifications are based on the test circuit shown below

2.

This specification is valid for room temperature only

3.

Electrical margin has been built into the design to account for the variations due to manufacturing tolerances

4.

This is the optimum impedance in order to achieve the performance shown

Test Circuit:

Actual matching values may vary due to PCB layout and parasitics

50

Ω

Single-ended

1,2,4,5,6

7,8,10,11,12

50

Ω

8pF

3nH

93

3nH

50

Ω

4pF

3pF

Subject to change or obsolescence without notice

Rev -

07-Apr-2003

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