TFS70BF Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 70bf.doc
VI TELEFILTER
Version 1.0
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
144 Ω || -19,8 pF
200 Ω || -23,1 pF
TFS 70BF
20.11.2007
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 70BF 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 nominal frequency fN is fixed at 70 MHz. The values for relative attenuation are guaranteed at
ambient temperature. The frequency shift of the filter over temperature defined by the temperature coefficient of frequency Tc_f is not included in the
production tolerance scheme.
Data
Insertion loss
ae
(reference level)
Nominal frequency
f_N
Centre frequency at ambient temperature
f_C
Passband
PB
Relative attenuation
f_N
f_N ±
f_N ±
f_N ±
... f_N ±
3,5 MHz ... f_N ±
5
MHz ... f_N ±
8
MHz ... f_N ±
arel
3,5 MHz
4,0 MHz
8
MHz
50
MHz
Group delay
mean value in PB
Group delay ripple within PB
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf **
typ. value
10,7 dB
-
70
MHz
-
1,2
1,8
25
38
0,99
200
-
-
-
- 72
dB
dB
dB
dB
µs
ns
ppm/K
tolerance / limit
max.
12 dB
70 MHz
-
f_N ± 4,5 MHz
max.
max.
min.
min.
1,8 dB
3 dB
20 dB
35 dB
max.
1,2 µs
max. 300 ns
max.
8 dBm
- 40 °C ... + 80 °C
- 40 °C ... + 85°C
-
*) The terminating impedances depend on parasites 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.
**) ∆fc(Hz) = Tc_f(ppm/K) x (T - T_o) x f_CAT (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.