SAW Bandpass Filter 251908B

3. Specifications

Fo = 140.0 MHz

Terminating source impedance

: 50

Ω and matching network

Terminating load impedance

: 50

Ω and matching network

Minimum

Typical

Maximum

Center Frequency

MHz

139.85

140.0

140.15

Insertion Loss

dB

-

27.0

28.0

1dB Bandwidth

MHz

-

19.1

-

3dB Bandwidth

MHz

19.4

19.55

-

10dB Bandwidth

MHz

-

20.2

20.3

40dB Bandwidth

MHz

21.1

21.3

Amplitude Ripple (Fo +/- 9.375 MHz)

dB

-

0.8

1.2

Group Delay Variation (Fo +/- 9.375 MHz)

nsec

-

30

100

Absolute Delay

usec

-

3.2

-

Ultimate Rejection

dB

50

52

-

Temperature Coefficient of Frequency

ppm/°C

2

-

-23

-

Notes :

1)

All specifications are based on the matching schematic shown below

2)

All specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature

3)

All attenuation measurements are measured relative to insertion loss

Part No.

251908B

Rev. Date

2005-03-07

I T F

Co., Ltd.

102-901, Bucheon Technopark 364,

Gyounggi-Do, Korea 421-809

Rev.

NM5008-CS01

2/5

Samjeong-Dong, Ojeong-Gu, Bucheon-City,