Filename: TFS135G.DOC

Version 1.1

26.10.2012

Vectron International

Filter specification

TFS 135G

1/5

Vectron International GmbH

Potsdamer Straße 18

D 14 513 TELTOW / Germany

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

Vectron International GmbH 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:

264.86 Ω || - 28.07 pF

Output:

178.06 Ω || - 37.54 pF

Characteristics

Remark:

The reference level for the relative attenuation arel of the TFS135G is the minimum of the pass band attenuation. This value is defined as the insertion loss ae.

The nominal frequency fN is fixed at 135.0MHz 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

8.7

dB

max.

11.5

dB

(reference level)

Nominal frequency

135.0

MHz

Passband

PB

-

±

1.5

MHz

Passband ripple within PB

p-p

0.3

dB

max.

1.0

dB

Bandwidth

BW

1.0dB

4.2

MHz

min.

3

MHz

Relative attenuation

arel

1.5

MHz

0.3

dB

max.

1.0

dB

5.25

50

MHz

48

dB

min.

40

dB

Group delay ripple within PB

p-p

26

ns

max.

60

ns

Return loss within PB

20

dB

min.

10

dB

Operating temperature range

OTR

-

-40 °C ... + 85 °C

Storage temperature range

-

-40 °C ... + 85 °C

Temperature coefficient of frequency

TCf **

-22

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.

Generated:

Checked / Approved: