tfs173A.doc

Version 1.5

01.08.2001

VI TELEFILTER

Filter Specification

TFS 173A

1/5

1. Measurement condition :

23

°C

Input power level:

0

dBm

Terminating impedances at fc *) :

for input:

48

-21,5 pF.

( typical value )

for output:

48

-21,5 pF.

( typical value )

2. Characteristics :

Remark:

Reference level for the relative attenuation arel of the TFS173A is the minimum of the pass band attenuation amin. The minimum of the pass

(

for the reference frequency fc 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

typ. value

tolerance / limit

Insertion loss (Reference level)

ae

26,5

dB

max.

28

dB

174,175 MHz

174,050 ... 174, 300

MHz

Pass band ( PB )

in O.T.R. :

MHz

Amplitude ripple in PB (p-p)

1,1...1,2

dB

max.

1,5

dB

Bandwidth :

34,95

± 0,175 MHz

1,5 dB - band width

34,850 MHz

3 dB - band width

34,960 MHz

34,95

± 0,050 MHz

22 dB - band width

35,620 MHz

24 dB - band width

35,660 MHz

Relative attenuation in O.T.R. :

arel

MHz

1,2

dB

max.

1,5

dB

MHz

25

dB

min.

22

dB

MHz

25

dB

min.

22

dB

MHz

27

dB

min.

24

dB

MHz

27

dB

min.

24

dB

MHz

33

dB

min.

30

dB

MHz

33

dB

min.

30

dB

MHz

40

dB

min.

35

dB

MHz

40

dB

min.

35

dB

MHz

50...55

dB

min.

45

dB

MHz

50...60

dB

min.

45

dB

Group delay ( mean value in PB ):

2,15

µs

max.

3

µs

Group delay ripple in PB (p-p):

50

ns

max.

120

ns

Deviation from linear phase in PB :

12

° p-p...(2° r.m.s.)

Triple transit attenuation compared to main signal

60

dB

Crosstalk

60

dB

- 87

ppm/K

- 94

ppm/K

Frequency deviation of fc over temperature

Operating temperature range ( O.T.R. )

- 10

°C ... + 70 °C

Storage temperature range

- 40

°C ... + 85 °C

*) 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:

Dunzow W.

Checked/Approved:

Dr. Bert Wall

VI TELEFILTER

Vectron International, Inc.

Potsdamer Stra

ße 18

267 Lowell Road

D 14 513 TELTOW / Germany

Hudson, NH 03051 / USA

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