Filename: tfr 315c.doc

Version 1.0

03.05.2006

Resonator specification

TFR 315C

1/5

Tele Filter GmbH

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.

Measurement condition

Ambient temperature:

25

°C

Input power level:

0

dBm

Terminating impedance: *

Input:

50

Ω

Output:

50

Ω

Characteristics

Remark:

The minimum of the pass band attenuation amin is defined as the insertion loss ae. The centre frequency fC is the frequency of the minimum of the

operating temperature range and a production tolerance for the centre frequency fC.

D a t a

typ. value

tolerance / limit

Insertion loss

ae = amin

-

max.

2,5

dB

(reference level)

Centre frequency

315,0

MHz

±100

kHz

Ageing of centre frequency

(Absolute value during the first year)

-

max.

-40/+10 ppm/yr

Quality factor

Q

Unloaded Q

8400

-

Loaded 50Ω

2000

-

Parallel capacitance

3,8

pF

-

Motional resistance

27

Ω

-

Motional inductance

117

µH

-

Motional capacitance

2,1

fF

-

DC insulation resistance

-

min.

1

MΩ

Permissible DC voltage

-

max.

12

V

Input power level

-

max.

0

dBm

Operating temperature range

OTR

-

-40 °C ... + 85°C

Storage temperature range

-

-40 °C ... + 85°C

Turnover temperature

25

°C

max.

± 15

°C

Temperature coefficient of frequency

TCf **

- 0,032

ppm/K

2

*) The equivalent circuit model is for reference only.

**)

Generated:

Checked / Approved: