Filename: tfs 174l.doc

Version 2.1

17.06.2011

Vectron International

Filter specification

TFS 174L

1/5

Vectron International GmbH & Co. KG

Potsdamer Straße 18

D 14 513 TELTOW / Germany

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

E-Mail:

tft@vectron.com

Vectron International GmbH & Co. KG reserves the right to make changes to the product(s) and/or information contained herein without

Measurement condition

Ambient temperature:

23

°C

Input power level:

0

dBm

Source impedance:

50

Ω

Load impedance:

200

Ω

Terminating impedance: *

Input:

440 Ω || -7 pF

Output:

400 Ω || -9 pF

Characteristics

Remark:

The reference level for the relative attenuation arel of the TFS 174L is the minimum of the pass band attenuation. This value is defined as the insertion loss

ae. The nominal frequency fN is fixed at 174 MHz without any tolerance. The values of relative attenuation arel 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

10,2

dB

max.

12

dB

(reference level)

Nominal frequency

174

MHz

Passband

PB

27,3

MHz

f

N

±

10

MHz

Pass band ripple

p-p

0,5

dB

max.

1,0

dB

Bandwidth

BW

1

dB

27,3

MHz

min.

20

MHz

2

dB

28,7

MHz

min.

22

MHz

5

dB

30,5

MHz

max.

34

MHz

Relative attenuation

arel

f

N

… f

N

±

10

MHz

0,5

dB

max.

1

dB

f

N

-

75

MHz … f

N

-

36

MHz

48

dB

min.

40

dB

f

N

-

36

MHz … f

N

-

23

MHz

52

dB

min.

40

dB

f

N

-

23

MHz … f

N

-

20

MHz

43

dB

min.

30

dB

f

N

-

20

MHz … f

N

-

17

MHz

10

dB

min.

5

dB

f

N

+

17

MHz … f

N

+

20

MHz

6,5

dB

min.

5

dB

f

N

+

20

MHz … f

N

+

23

MHz

38

dB

min.

30

dB

f

N

+

23

MHz … f

N

+

36

MHz

40

dB

min.

38

dB

f

N

+

36

MHz … f

N

+

75

MHz

44

dB

min.

40

dB

Average group delay

within PB

480

ns

max.

500

ns

Group delay ripple

within PB

p-p

29

ns

max.

100

ns

Phase linearity

within PB

p-p

4

deg

max.

5

deg

Input power level

max.

20**

dBm

Operating temperature range

OTR

- 54 °C ... + 85 °C

Storage temperature range

- 54 °C ... + 85 °C

Temperature coefficient of frequency

TCf ***

-92

ppm/K

-

*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference

values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.

**) This power level is only allowed for short term operation (cycle time 1:1000), the max. input power for continuous operation is max.10dBm only

***)

Generated:

Checked / Approved:

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.