Filename: tfs 1747.doc

Version 1.5

26.06.2007

Filter specification

TFS 1747

1/5

Tele Filter GmbH

Potsdamer Straße 18

D 14 513 TELTOW / Germany

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

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.

Measurement condition

Ambient temperature:

23

°C

Input power level:

0

dBm

Terminating impedance:

Input:

43

Ω || - 1 pF

Output:

43

Ω || - 1 pF

Source Impedance:

50

Ω

Load Impedance:

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

2

dB

max.

2,5

dB

Nominal frequency

-

1747,5

MHz

Passband

PB

-

±

37,5

MHz

Absolute attenuation

aabs

1

MHz ...

350

MHz

48

dB

min.

34

dB

350

MHz ...

1678

MHz

15

dB

min.

14

dB

1819

MHz ...

4000

MHz

18

dB

min.

14

dB

Input power level wilthin PB

-

max.

17

dBm

Return loss within PB

10,5

dB

max.

8

dB

Operating temperature range

OTR

-

- 40 °C ... + 85°C

Storage temperature range

-

- 40 °C ... + 85°C

Temperature coefficient of frequency

TCf *

-46

ppm/K

-

*)

Generated:

Checked / Approved:

Filter characteristic