245.0 MHz SAW Filter

Tel: 82-32-621-1213

2013. 03. 27

I T F

Co., Ltd.

102-901, Bucheon Technopark 364, Samjeong-Dong,

Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

Fax: 82-32-621-1218

http://www.itf.co.kr

sales@itf.co.kr

Rev 1.0

1. Features

High attenuation

Single Ended Operation

Surface Mounted Package (SMD)

2. Electrical Specifications

Source and Load Impedance = 50

Room Temperature: +25℃

℃

℃

℃

Minimum

Typical

Maximum

Center Frequency (fo)

MHz

-

245.0

-

Insertion Loss

dB

-

27.0

28.5

1dB Bandwidth

MHz

18.4

18.52

-

3dB Bandwidth

MHz

-

18.95

-

40dB Bandwidth

MHz

-

20.86

21.0

Amplitude Ripple (Fo±9.0MHz)

dB

-

0.6

1.2

Group Delay Variation (Fo±9.0MHz)

nsec

-

25

60

Absolute Delay

usec

-

2.16

-

Ultimate Rejection

dB

45

52

-

Temperature Coefficient of Frequency

ppm/℃

℃

℃

℃

-

-18

-

S1365 Package Dimension

Matching Schematic

L1 = 8.2nH, L2 = 10nH, L3 = 15nH, C1 = 20pF

Pin Configuration

Input

11

Ground

6, 12

12

11

10

9

8

7

6

5

4

3

2

1

0.80±0.1

1.50±0.1

2.54±0.1

7.62±0.1

13.30±0.2

1

2

3

4

10

9

8

7

5

6

11

12

Dimensions shown are nominal in millimeters

Lid : Kovar, Ni Plated

Termination : Au plating 0.3 ~ 1.0um, over a 1.27 ~ 8.89um Ni Plating

Output

5

Others

Ground

L2

L1

C1

L3

Output

Input

11

11

11

11

5

5

5

5

ITF 13A001

261852B

。

。

。

。245-18.5M