Data Sheet

Part Number 855271

479.75 MHz SAW Filter

Minimum

Typical

Maximum

Unit

Center Frequency

-

479.75

-

MHz

Insertion Loss

-

19.5

22

dB

9

11.7

-

MHz

-

19.9

22

MHz

-

0.38

1

dB p-p

Group Delay Variation

475.25 - 484.25 MHz

-

26

50

nsec

-

50

-

Ω

-

50

-

Ω

-

-23

-

Substrate Material

-

-

-

Notes:

1.

All specifications are based on the test circuit shown below

2.

This specification is valid for room temperature only

3.

Device will function over an operating temperature of -40 to 85

and frequency shift performance will change over temperature. See coefficient of temperature for frequency shift estimation.

4.

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

5.

Referenced to insertion loss at 479.75 MHz

6.

Referenced to 100% of 1dB bandwidth

7.

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

12pF

93

50

Ω

39pF

Subject to change or obsolescence without notice

Rev A

25-Jul-2003

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