tfs228 Vectron International, Inc., tfs228 Datasheet

tfs228

Manufacturer Part Number

tfs228

Description

Vi Telefilter Filter

Manufacturer

Vectron International, Inc.

Datasheet

1.TFS228.pdf (5 pages)

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tfs228.doc

______________________________________________________________________________________________________

VI TELEFILTER

______________________________________________________________________________________________________

Measurement condition

Ambient temperature:

Input power level:

terminating impedances

Characteristics

Remark:

Reference level for the relative attenuation a rel of the TFS 228 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

1 dB filter attenuation level relative to the insertion loss a e . 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

operating temperature range and due to a production tolerance for the centre frequency f

D a t a

______________________________________________________________________________________________________

Insertion loss

______________________________________________________________________________________________________

Nominal frequency

______________________________________________________________________________________________________

Relative attenuation

______________________________________________________________________________________________________

VSWR ratio

______________________________________________________________________________________________________

Group delay mean value

Group delay ripple

______________________________________________________________________________________________________

Phase linearity

______________________________________________________________________________________________________

Input power level

______________________________________________________________________________________________________

Operating temperature range

Storage temperature range

______________________________________________________________________________________________________

Temperature coefficient

______________________________________________________________________________________________________

Note 1) - f (Hz) = TC (ppm/K) x (T - To) x F

Generated:

Checked / approved:

______________________________________________________________________________________________________

VI TELEFILTER

Potsdamer Straße 18

D 14 513 TELTOW / Germany

Tel: (+49) 3328 4784-0 / 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.

............................. f

5,73 MHz ... f

- 665 kHz ... f

f N ± 0,665 MHz

Source:

Load:

± 665

+ 665 kHz

a e = a min

f N

a rel

188

kHz

MHz

220

225

(MHz)

|| -14.3 pF

|| -13.5 pF

dBm

Filter specification

is the arithmetic mean value of the upper and lower frequencies at the

is shifted due to the temperature coefficient of frequency TC f in the

typ. value

710

100

- 18 ppm/K

0,4

1,6 : 1

1,0

Version 1.3

°rms

Vectron International, Inc.

267 Lowell Road

Hudson, NH 03051 / USA

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

E-Mail: vti@vtinh.com

TFS 228

max.

min.

max.

max. 200

max.

max. + 10

- 30 C ... + 80 C

- 40 C ... + 85 C

limit

228,6 MHz

8,0

1,0 dB

2 : 1

2,5 °rms

02.10.2000

dBm

1/5

Related parts for tfs228

tfs228 Summary of contents

Page 1

... VI TELEFILTER ______________________________________________________________________________________________________ Measurement condition Ambient temperature Input power level terminating impedances Source: 220 || -14.3 pF Load: 225 || -13.5 pF Characteristics Remark: Reference level for the relative attenuation a rel of the TFS 228 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 (All dimensions in mm M20 228 test circuit L1 12 Input SAW 50 Ohm C1 1,2,3,4,5,7 8,9,10,11 ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straß 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft@telefilter ...

Page 3

... VI TELEFILTER ______________________________________________________________________________________________________ Stability Characteristics: After the following tests the filter shall meet the whole specification: 1. Shock: 500g, 18 ms, half sine wave, 3 shocks each plane; DIN IEC Vibration 500 Hz, 0, respectively, 1 octave per min, 10 cycles per plan, 3 plans; ...

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 / ° ...

Page 5

... VI TELEFILTER ______________________________________________________________________________________________________ Version Reason of Changes 1.2 - pinning rotated 1.3 - TTS suppression removed - group delay mean value limits added - stopband attenuation decrease removed - new terminating impedances added ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straß 513 TELTOW / Germany Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30 E-Mail: tft@telefilter ...

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