Filename: tfs 940a.doc

Version 1.2

26.07.2006

Filter specification

TFS 940A

1/5

Tele Filter GmbH

Potsdamer Straße 18

D 14 513 TELTOW / Germany

Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30

E-Mail:

tft@telefilter.com

Measurement condition

Ambient temperature:

23

°C

Input power level:

0

dBm

Terminating impedance:

Input:

50

Ω

Output:

50

Ω

Characteristics

Remark:

limit. The values of absolute attenuation aabs are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating

temperature range is included in the production tolerance scheme.

D a t a

typ. value

tolerance / limit

Insertion loss

ae

3,0

dB

max.

4,0

dB

Insertion loss at ambient temperature

2,1

dB

max.

2,8

dB

Nominal frequency

-

940,5

MHz

Passband

45

MHz

±

19,5

MHz

Pass band variation

2,5

dB

max.

3,0

dB

Pass band variation at ambient temperature

1,4

dB

max.

1,8

dB

Absolute attenuation

aabs

0,3

MHz

...

800

MHz

26,5

dB

min.

25

dB

800

MHz

...

880

MHz

27,5

dB

min.

26

dB

880

MHz

…

905

MHz

35

dB

min.

20

dB

880

MHz

…

905

MHz

at ambient temperature

36

dB

min.

28

dB

905

MHz

…

915

MHz

4,5

dB

min.

2

dB

905

MHz

…

915

MHz

at ambient temperature

11

dB

min.

3

dB

980

MHz

… 1005

MHz

35

dB

min.

30

dB

1005

MHz

… 1025

MHz

31

dB

min.

30

dB

1025

MHz

… 1760

MHz

30

dB

min.

27

dB

1760

MHz

… 2000

MHz

43

dB

min.

30

dB

2000

MHz

… 3500

MHz

7

dB

min.

5

dB

3500

MHz

… 4000

MHz

4,5

dB

min.

2

dB

VSWR within PB

2,0 : 1

max.

3,0 : 1

VSWR within PB at ambient temperature

2,0 : 1

max.

2,8 : 1

Input power level

-

max.

10

dBm

Operating temperature range

OTR

-

- 30 °C ... + 80°C

Storage temperature range

-

- 40 °C ... + 85°C

Temperature coefficient of frequency

TCf *

-43

ppm/K

-

*)

Generated:

Checked / Approved:

VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is

assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.