Bandpass Filter 234251B

Part No.

234251B

Rev. Date

2008-10-13

I T F

Co., Ltd.

102-901, Bucheon Technopark 364,

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

Gyounggi-Do, Korea 421-809

Rev.

NJ8019-CS01

2/5

3. Specifications

Fo = 78.0 MHz

Terminating source impedance

: 50Ω and matching network

Terminating load impedance

: 50Ω and matching network

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

3)

Electrical margin has been built into the design to account for the variations due to temperature drift and

manufacturing tolerances

4)

All attenuation measurements are measured relative to insertion loss

Operating temperature range :

-25℃

℃

℃

℃ ~ +85℃

℃

℃

℃

Minimum

Typical

Maximum

Center Frequency (Fc)

MHz

-

78.0

-

Insertion Loss

dB

-

19.0

21.0

1dB Bandwidth

MHz

41.3

41.9

-

3dB Bandwidth

MHz

-

42.95

-

40dB Bandwidth

MHz

-

48.2

48.7

Amplitude Ripple (Fo +/- 19.8 MHz)

dB

-

0.7

1.0

Group Delay Variation (Fo +/- 19.8 MHz)

nsec

-

30

60

Absolute Delay

usec

-

0.94

-

Ultimate Rejection

dB

40

45

-

Temperature Coefficient of Frequency (TCF)

ppm/°C

-

- 72

-

Room temperature

: + 25 ℃

℃

℃

℃

Minimum

Typical

Maximum

Insertion Loss

dB

-

19.0

20.5

Amplitude Ripple (Fo +/- 20.12 MHz)

dB

-

0.7

1.0

Group Delay Variation (Fo +/- 20.12 MHz)

nsec

-

30

60