tfs70h28 Vectron International, Inc., tfs70h28 Datasheet

tfs70h28

Manufacturer Part Number

tfs70h28

Description

Vi Telefilter Filter

Manufacturer

Vectron International, Inc.

Datasheet

1.TFS70H28.pdf (5 pages)

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File name : TFS70H28.doc

VI TELEFILTER

1. Measurement condition

Ambient temperature T

Input power level:

Terminating impedances at f c * ) :

Source impedance:

Load impedance:

2. Characteristics

Remark:

Reference level for the relative attenuation a rel of the TFS 70H28 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 reference frequency f c 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 temperature coefficient of frequency Tc

reference frequency f c and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the operating

temperature range is not included in the production tolerance scheme

Data

Insertion loss (Reference level)

Centre frequency at ambient temperature T

Pass band at ambient temperature T

Amplitude ripple (p-p):

Bandwidth

Relative attenuation :

Group delay ( mean value in PB ):

Group delay ripple in PB (p-p):

Deviation from linear phase in PB (p-p):

Triple transit attenuation compared to main signal

Crosstalk

Substrate material

Frequency inversion temperature ( T

Temperature coefficient of frequency ( Tc

Frequency deviation of f c over temperature: ** )

Operating temperature range

Storage temperature range

** ) f

VI TELEFILTER

Potsdamer Strae 18

D 14 513 TELTOW / Germany

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

E-Mail:

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.

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.

1,25 MHz .... f

2,45 MHz .... f

4,45 MHz .... f

is reference frequency f c at frequency inversion temperature (T

tft@telefilter.com

at ambient temperature:

.... f

Generated:

Checked/Approved:

1,25 MHz

1,50 MHz

4,45 MHz

..... f

MHz

23 C

0 dBm.

for input:

for output:

)

1,20 MHz

)

a e

f c

a rel

Filter specification

1275

953

)

f c (Hz) = Tc

- 8,93 pF.

- 7,32 pF.

20...40 C

-0,045

typical values

70,01 MHz

Quartz

0,35 dB

2,75 MHz

3,15 MHz

4,41 MHz

4,61 MHz

4,71 MHz

2,77 s

25 dB

50 ns

2,3

(ppm/K) x (T - T

ppm/K

Dunzow W.P.

Dr. Bert Wall

Vectron International, Inc.

267 Lowell Road

Hudson, NH 03051 / USA

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

E-Mail:

) x f

- 1,5 MHz ... f

vti@vtinh.com

Version 1.1

TFS 70H28

- 25 C ... + 80 C

- 40 C ... + 85 C

(MHz)

tolerance / limit

max.

max. 0,8 dB

min. 2,50 MHz

min. 3,00 MHz

max. 4,90 MHz

max.

min.

max. 4,0 s

max.

70 0,09 MHz

+ 1,5 MHz

26 dB

40 dB

50 dB

90 ns

is valid both for the

1 dB

3 dB

04.02.2002

1/5

Related parts for tfs70h28

tfs70h28 Summary of contents

Page 1

... File name : TFS70H28.doc VI TELEFILTER 1. Measurement condition 23 C Ambient temperature Input power level: 0 dBm. Terminating impedances for input: for output: Source impedance: 50 Load impedance Characteristics Remark: Reference level for the relative attenuation a rel of the TFS 70H28 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

... File name : TFS70H28.doc VI TELEFILTER 3. Construction and pin connection 22,5 Max. 5,0 max. 5,6 max. 2,54 0,2 6x2,54 = 15,62 TFS 70H28 P22 matching networks ( see Application Note ) : For final test we use scheme 1. 1 Scheme Scheme 1 TELEFILTER ...

Page 3

... File name : TFS70H28.doc VI TELEFILTER 5. 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

... File name : TFS70H28.doc VI TELEFILTER 6. Air reflow temperature conditions 1st and 2nd air reflow profile Name: pre-heating periods Temperature: 150 C - 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 ...

Page 5

... File name : TFS70H28.doc VI TELEFILTER 7. History Version Reason of Changes 1.0 Generate Filter specification. 1.1 - correct dimensions in Construction and pin connection . VI TELEFILTER Potsdamer Stra 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 ...

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