Filename: tfs86c.doc

version 1.4

21.01.2002

Filter Specification

TFS 86 C

1/5

VI TELEFILTER

Vectron International, Inc.

Potsdamer Straße 18

267 Lowell Road

D 14 513 TELTOW / Germany

Hudson, NH 03051 / USA

Measurement condition

Ambient temperature:

23

°

Input power level:

0 dBm

Terminating impedance:

*)

Input:

825

Ω II –1,75 pF

Output:

825

Ω II –1,75 pF

Characteristics

Remark:

Reference level for the relative attenuation arel of the TFS 86 C is the minimum of the pass band attenuation amin. The minimum of the pass

band attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies

at the 3dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 86,46 MHz without any tolerance. The given

values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below even if the centre

frequency fc is shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance

for the centre frequency fc.

D a t a

typ. value

tolerance / limit

Insertion loss

ae = amin

3,7

dB

max.

5

dB

(Reference level)

Nominal frequency

fN

-

86,46

MHz

Centre frequency

fc

86,463 MHz

-

Pass band ripple

13 kHz

0,7

dB

max.

2,0

dB

Relative attenuation

arel

14 kHz

0,9

dB

max.

3

dB

64

dB

min.

50

dB

51 - 60 dB

min.

40

dB

60 kHz

24

dB

min.

20

dB

24

dB

min.

20

dB

45 - 60 dB

min.

40

dB

Group delay distortion

GDD

11 kHz

3,8

µs

max.

10

µs

Intermodulation

**)

-

max. - 80

dBm

Operating temperature range

- 20 °C ... + 70 °C

Storage temperature range

- 40 °C ... + 85 °C

Temperature coefficient of frequency

- 0,036 ppm/K²

25

°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.

**) Intermodulation in the composite signal by fN ± 60 kHz and fN ± 120 kHz each of -20 dBm

***)

Generated:

Checked / approved:

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.