tfs125a.doc

Version 1.3

06.01.02

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Filter Specification

TFS 125 A - Page 1 / 4

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VI TELEFILTER

Vectron International, Inc.

Potsdamer Straße 18

267 Lowell Road

D 14 513 TELTOW / Germany

Hudson, NH 03051 / USA

Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30

Tel: (603) 598-0070 Fax: (603) 598-0075

E-Mail: tft@telefilter.com

E-Mail: vti@vtinh.com

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 impedances: 50

Ω

Construction, pin connection and

recommended land dimensions

See page 2

Stability Characteristics and Packing

See page 3

Air Reflow Temperature Conditions

See page 4

Characteristics

Remark:

Reference level for the relative attenuation arel of the TFS 125 A is the maximum attenuation in the passband. The maximum attenuation in the

pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 125 MHz without tolerance or limit. The values of relative

attenuation arel are guaranteed in 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

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Insertion loss

ae

-

1,5 ... 3,5

dB

(Reference level)

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Nominal frequency

fN

-

125

MHz

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1 dB bandwidth

BW

-

min 300

kHz

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Relative attenuation

arel

fN

- 150 kHz ... fN

+ 150 kHz

-

max. 1

dB

1 MHz... fN

- 28 MHz

-

min. 12

dB

fN

-

28 MHz ... fN

- 14 MHz

-

min. 5

dB

fN

+

14 MHz... fN

+ 28 MHz

-

min. 15

dB

fN

+

28 MHz... fN

+ 325 MHz

-

min. 38

dB

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VSWR

fN

- 150 kHz ... fN

+ 150 kHz

-

max 2 : 1

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Absolute group delay

GD

fN

-

max. 300

ns

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Group delay ripple

GDD

**)

fN

- 150 kHz ... fN

+150 kHz

-

max 30

ns

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Intermodulation

***)

54

dB

min. 45

dB

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Input power level

max. 10

dBm

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Temperature coefficient of frequency

TCf *)

- 71.6

ppm/K

-

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Operating temperature range

- 10 °C ... + 85 °C

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*)

∆f(Hz) = TCf(ppm/K) x (∆T) x fTo(MHz)

**) measured with smoothing; smoothing aperture

≤ 50 kHz

generated:

checked / approved: