TFS418A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 418a.doc
Vectron International
Version 3.1
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
261 Ω || -0.5 pF
261 Ω || -0.5 pF
TFS 418A
12.05.2010
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 418A 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 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 418,0 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 within the operating temperature range and due to a production tolerance for the centre frequency fc.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
Nominal frequency
Centre frequency
ae
2,6 dB
f_N
-
f_C
418,0 MHz
max.
3,0 dB
418,0 MHz
Bandwidth
BW
2 dB
26
MHz
min.
24,0 MHz
Passband
Pass band ripple
PB
p-p
1,5 dB
f_N
±
max.
12,0 MHz
2,0** dB
Relative attenuation
f_N -
f_N -
f_N +
f_N +
f_N +
100,0
55,0
25,0
60,0
125,0
MHz … f_N -
MHz … f_N -
MHz … f_N +
MHz … f_N +
MHz … f_N +
80,0
35,0
60,0
85,0
160,0
arel
MHz
MHz
MHz
MHz
MHz
60
dB
40
dB
25
dB
55
dB
60
dB
min.
50,0 dB
min.
30,0 dB
min.
20,0 dB
min.
40,0 dB
min.
57,0 dB
Intermodulation
IP₃
min.
20*** dB
Input power level
max.
10 dBm
Permissible DC voltage
max.
12,0 V
Operating temperature range
Storage temperature range
OTR
-
-
- 25 °C …+ 75°C
- 40 °C ... + 85°C
Temperature coefficient of frequency
TCf ****
-70
ppm/K
*) 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.
**) 2 dB is guaranteed at ambient temperature
***) modulation signals: f_N + 1 MHz and f_N + 2 MHz, each of 10 dBm
****) ∆f(Hz) = TCf(ppm/K) x (T-T₀) x f_T0 (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.