TFS276C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 276c.doc
Vectron International
Version 1.2
Filter specification
TFS 276C
23.02.2010
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
720 Ω || -6,3 pF
580 Ω || -6,9 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 276C 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 1,5 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 276,0 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
typ. value
tolerance / limit
Insertion loss
ae
(reference level)
Nominal frequency
f_N
Centre frequency at ambient
f_C
temperature
Passband
PB
Pass band ripple
Amplitude ripple within f_N ± 0,6 MHz
Relative attenuation
f_C
f_C -
f_C ±
f±
C
f+
C
275,7
3,0
4,0
25,0
… f_C ±
MHz … f_C -
MHz … f_C ±
MHz … f ±
C
MHz … f +
C
Group delay
Phase ripple within f_C ± 2,25 MHz
Phase ripple within f_C ± 3,00 MHz
1,5
25,0
4,0
25,0
224,0
arel
MHz
MHz
MHz
MHz
MHz
at f_N @ 25 °C
p-p
p-p
Triple transit response suppression
Return loss within PB at 25 °C
Return loss within PB
Input power level
**
9,1 dB
-
276,0
MHz
-
0,15 dB
0,15 dB
1,6 dB
60
dB
15
dB
43
dB
65
dB
570
ns
2
°
5
°
51
dB
18
dB
15
dB
-
max.
11,0 dB
276,0 MHz
± 100,0 kHz
f±
C
max.
max.
1,5 MHz
3,0 dB
0,5 dB
max.
min.
min.
min.
min.
3 dB
50 dB
13 dB
35 dB
50 dB
max.
±20
ns
max.
12 °p-p
max.
30 °p-p
min.
38 dB
min.
12 dB
min.
10 dB
max.
20 dBm
Operable temperature range
-
- 40 °C ... + 105 °C
Operating temperature range
Storage temperature range
OTR
-
-
- 40 °C ... + 85 °C
- 62 °C ... + 105 °C
Frequency inversion temperature
22
°C
-
Temperature coefficient of frequency
TCf ***
-0,04 ppm/K²
-
*) 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.
**) for short term operation only, cycle time 1:1000; 15 dBm max for continuous operation
***) ∆f(Hz) = TCf(ppm/K²) x (T-T₀)² x fcat(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
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