TFS280L_04 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 280l.doc
VI TELEFILTER
Version 1.3
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
18.10.2004
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS280L 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 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.
Data
typ. value
tolerance / limit
Insertion Loss
ae
9.5
dB
max.
11 dB
Nominal Frequency
Centre Frequency
f_N
-
f_C
280
MHz
280 MHz
-
Relative Attenuation
f_N ...
f_N ±
f_N ±
7,5 MHz ... f_N ±
f_N ±
f_N ±
15 MHz ... f_N ±
17 MHz ... f_N ±
arel
7,5 MHz
8,5 MHz
17 MHz
100 MHz
0,5 dB
1,5 dB
20
dB
42
dB
max.
max.
min.
min.
1 dB
3 dB
10 dB
40 dB
Group Delay Ripple
f_N -
7,5 MHz ... f_N +
7,5 MHz
30
ns
max.
40 ns
Operating Temperature Range
Storage Temperature Range
Temperature Coefficient of Frequency
OTR
TCf **
-
-
- 87
ppm/K
- 40°C ... + 85°C
- 40°C ... + 85°C
-
Input Power Level
-
max.
15 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.
**) ∆f(Hz) = TCf(ppm/K) x (T-T₀) x fTo(MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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.