TFS390E 参数 Datasheet PDF下载

Filename: tfs 390e.doc

Version 1.1

06.12.2005

VI

TELEFILTER

Measurement condition

Ambient temperature:

Input power level:

Terminating impedance: *

Input:

Output:

23

0

°C

dBm

Filter specification

TFS 390E

1/5

370

Ω

|| -5,3 pF

330

Ω

|| -4,6 pF

Characteristics

Remark:

The reference level for the relative attenuation arel of the TFS 390E 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 3 dB

filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 390 MHz without any tolerance. The given values for both the

relative attenuation arel and the group delay ripple have to be achieved 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.

Data

Insertion loss

(reference level)

Nominal frequency

Centre frequency

Passband

Pass band ripple

Relative attenuation

f

N

f

N

±

10,8

… f

N

MHz … f

N

±

±

300

20

arel

kHz

MHz

f

N

f

C

ae

typ. value

3,1

-

390

-

0,5

dB

MHz

f

N

dB

tolerance / limit

max.

3,8

390

-

± 300

3

kHz

dB

dB

MHz

max.

0,5

50

-

dB

dB

max.

min.

max.

3

40

10

dB

dB

dBm

Input power level

Operating temperature range

Storage temperature range

Temperature coefficient of frequency

TCf **

OTR

-

-

- 18

ppm/K

- 40 °C ... + 85°C

- 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.

**)

∆f(Hz)

= TCf(ppm/K) x (T-T

0

) x fTo(MHz)

Generated:

Checked / Approved:

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.