TFS1280 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: TFS1280.doc
Vectron International
Version 3.1
Filter specification
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedance: *
Source:
Load:
Input:
Output:
23
°C
0
dBm
50
Ω
50
Ω
39.6 Ω || -0.78 pF
39.6 Ω || -0.78 pF
TFS 1280
25.01.2016
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS1280 is the minimum of the passband attenuation amin. The minimum of the passband
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 1280 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
Nominal frequency
Centre frequency
Passband
Passband ripple
Relative attenuation
fN ±
fN ±
fN +
fN -
1.5
5
20
20
MHz ... fN ±
5
MHz ... fN ± 20
MHz ... fN + 180
MHz ... fN - 1150
Group delay ripple within PB
Input power level
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
ae
fN
fC
p-p
arel
MHz
MHz
MHz
MHz
OTR
T0
TCf **
typ. value
4
dB
-
1280
MHz
-
0.5 dB
10
30
36
38
60
-
-
-
40
-0.05
dB
dB
dB
dB
ns
°C
ppm/K²
tolerance / limit
max.
6 dB
1280
MHz
fN ±
max.
37.5 kHz
2.0 dB
min.
min.
min.
min.
max.
max.
3.5
12
30
30
150
15
dB
dB
dB
dB
ns
dBm
- 40 °C ... + 85 °C
- 55 °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:
Vectron International GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International GmbH 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.