TFS280L Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 280l.doc
Vectron International
Version 1.4
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
22
°C
0
dBm
187 Ω || -8.6 pF
63 Ω || -7.3 pF
TFS 280L
23.09.2008
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 280L 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 280 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
Relative attenuation
f_N
f_N ±
f_N ±
f_N ±
7,5
15
17
... f_N ±
MHz ... f_N ±
MHz ... f_N ±
MHz ... f_N ±
7,5
8,5
17
100
Group delay ripple
f_N -
7,5 MHz ... f_N +
7,5
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
ae
f_N
f_C
arel
MHz
MHz
MHz
MHz
MHz
OTR
TCf **
typ. value
9.5
dB
-
280
MHz
0,5 dB
1,5 dB
20
dB
42
dB
30
ns
-
-
-
- 87
ppm/K
tolerance / limit
max.
11 dB
280 MHz
-
max.
max.
min.
min.
1 dB
3 dB
10 dB
40 dB
max.
40
max.
15
- 40°C ... + 85°C
- 40°C ... + 85°C
-
ns
dBm
*) 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.
**) ∆fc(Hz) = Tc_f(ppm/K) x (T - T_o) x f_CAT (MHz).
Generated:
Checked / Approved:
Vectron International GmbH & Co. KG
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International GmbH & Co. KG 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.