TFS309A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 309a.doc
VI TELEFILTER
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
731,5 Ω || -4,5 pF
809,5 Ω || -3,8 pF
TFS 309A
08.11.2007
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 309A 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 309,4 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 ±
f_N ±
f_N ±
f_N -
f_N ±
0,75
1,5
3,0
21,4
50,0
… f_N ±
MHz … f_N ±
MHz … f_N ±
MHz … f_N ±
MHz
MHz … f_N ±
Group delay ripple within PB
IIP3
ae
f_N
f_C
PB
arel
0,25 MHz
1,5 MHz
3,0 MHz
4,5 MHz
300,0 MHz
**
Input power level
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
OTR
TCf ***
typ. value
5,3 dB
-
309,4
-
0
MHz
dB
0,40 dB
13
dB
46
dB
53
dB
64
dB
57
dB
166
ns
33
dBm
-
-
-
23
-0,043
°C
ppm/K²
tolerance / limit
max.
7,6 dB
309,4 MHz
-
f_N ±
max.
0,25 MHz
0,5 dB
max.
min.
min.
min.
min.
min.
0,5 dB
10 dB
40 dB
50 dB
60 dB
50 dB
max. 500 ns
min.
30 dBm
max.
15 dBm
- 40 °C ... + 85°C
- 55 °C ... +105°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_in1= 309,35 MHz; f_in2= 309,3 MHz; P_in= -10 dBm f_measurement = 309,4 MHz and f_in1= 309,45 MHz; f_in2= 304,5 MHz; P_in= - 10 dBm f_measurement = 309,4 MHz.
***) ∆f(Hz) = TCf(ppm/K²) x (T-T₀)² 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]
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