tfs70y.doc

Version 3.0

06.06.2003

Filter Specification

TFS 70 Y

1/5

Tele Filter GmbH

Potsdamer Stra

ße 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.

1. Measurement condition :

23

°C.

Input power level:

0

dBm.

Terminating impedances in fc * ) :

for input:

2,9 kOhm -3,8 pF

for output:

2,9 kOhm -3,8 pF

External coil:

820 nH

2. Characteristics :

Remark:

Reference level for the relative attenuation arel of the TFS70Y 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 reference frequency fc is the arithmetic mean value of the upper and lower

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

Variation / Limitation

Insertion Loss

ae

3,7

dB

max

6,0

dB

(Reference Level)

Centre frequency

fc

70,002 MHz

70,0 ± 0,015 MHz

Relative Attenuation

arel

kHz

0,5 dB

max.

1

dB

kHz

2

dB

max.

3

dB

kHz

2,5 dB

min.

1

dB

kHz

10

dB

min.

3

dB

kHz

45

dB

min.

35

dB

MHz

43

dB

min.

40

dB

Temperature Coefficient

- 0,043 ppm/K

-

Turn over temperature

25

°C

-

Operating Temperature Range

-

- 5 °C ... + 70 °C

Storage Temperature Range

-

- 30 °C ... + 90 °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:

checked / approved: