tfs244a Vectron International, Inc., tfs244a Datasheet

tfs244a

Manufacturer Part Number

tfs244a

Description

Vi Telefilter Filter

Manufacturer

Vectron International, Inc.

Datasheet

1.TFS244A.pdf (4 pages)

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tfs244A.DOC

______________________________________________________________________________________________________

VI TELEFILTER

______________________________________________________________________________________________________

Measurement condition

Ambient temperature:

Input power level:

Source impedance:

Load impedance:

Ext.coil:

Construction and pin connection

see page 2

Characteristics

Remark:

Reference level for the relative attenuation a rel of the TFS 244,0 is the minimum of the pass band attenuation a min . The minimum of the pass band

attenuation a min is defined as the insertion loss a e . The centre frequency f o is the arithmetic mean value of the upper and lower frequencies at the 3

dB filter attenuation level relative to the insertion loss a e . The nominal frequency f N is fixed on 244,0 MHz without tolerance. The given values for

the relative attenuation a rel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency f o is shifted

due to the temperature coefficient of frequency TC f in the operating temperature range and due to a production tolerance for the centre frequency f o .

P r e l i m i n a r y D a t a

______________________________________________________________________________________________________

Insertion loss

(Reference level)

______________________________________________________________________________________________________

Norminal frequency

______________________________________________________________________________________________________

Relative attenuation

244,0 MHz ± 90

244,0 MHz ± 400

244,0 MHz ± 600

244,0 MHz ± 800

244,0 MHz -

244,0 MHz +

244,0 MHz + 15

______________________________________________________________________________________________________

Group delay distortion

244,0 MHz ± 70

______________________________________________________________________________________________________

Operating temperature range

Storange temperature range

______________________________________________________________________________________________________

Temperature coefficient of frequency

______________________________________________________________________________________________________

Frequency inversion temperature

______________________________________________________________________________________________________

Generated:

Checked / approved:

______________________________________________________________________________________________________

VI TELEFILTER

Potsdamer Straße 18

D 14 513 TELTOW / Germany

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

E-Mail: tft@telefilter.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.

1,6 MHz ... 244,0 MHz - 10

1,6 MHz ... 244,0 MHz + 15

kHz

kHz ... 244,0 MHz ± 600

kHz ... 244,0 MHz ± 800

kHz ... 244,0 MHz ±

MHz ... 244,0 MHz + 25

kHz

340

116 nH

a e = a min

f N

a rel

0 dBm

|| -5 pF

1,6 MHz

Filter specification

kHz

MHz

Mhz

typ. value

2,6

3,2

µs

- 40 C ... + 85 C

- 30 C ... + 85 C

ca. - 0,036

Vectron International, Inc.

267 Lowell Road

Hudson, NH 03051 / USA

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

E-Mail: vti@vtinh.com

+ 25 C

version 1.1

ppm/K²

TFS 244 A

tolerance / limit

max 5

max 3

min 25

min 36

min 45

min 50

min 45

min 50

max 2

244,0

MHz

01/99

1/4

Related parts for tfs244a

tfs244a Summary of contents

Page 1

... VI TELEFILTER ______________________________________________________________________________________________________ Measurement condition Ambient temperature Input power level: 0 dBm Source impedance: 340 || -5 pF Load impedance: 340 || -5 pF Ext.coil: 116 nH Construction and pin connection see page 2 Characteristics Remark: Reference level for the relative attenuation a rel of the TFS 244,0 is the minimum of the pass band attenuation a min . The minimum of the pass band attenuation a min is defined as the insertion loss a e ...

Page 2

... VI TELEFILTER ______________________________________________________________________________________________________ Construction and pin connection TFS 244 A tft test circuit L1 ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straß 513 TELTOW / Germany Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30 E-Mail: tft@telefilter.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 ...

Page 3

... VI TELEFILTER ______________________________________________________________________________________________________ Stability characteristics After the following tests the filter shall meet the whole specification: 1. Shock: 30g, 18 ms, half sine wave, 3 shocks each plane; DIN IEC Vibration 150 Hz, 0.35 mm amplitude, 5g; 2 hours for 3 planes; DIN IEC Damp heat rel. humidity, 40 ° ...

Page 4

... VI TELEFILTER ______________________________________________________________________________________________________ Air reflow temperature conditions 1st and 2nd air reflow profile Name: pre-heating periods Temperature: 150 ° 170 ° C Time: 60 sec sec. 260 240 220 200 180 160 140 120 100 Table for temperature vs. time during the air reflow process time / sec. temperature / ° ...

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