TFS70BR Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: TFS70BR.DOC
Vectron International
Version 1.3
Filter specification
TFS 70BR
08.05.2012
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
754.71 Ω || - 17.85 pF
1245.42 Ω || - 10.03 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 70BR is the minimum of the pass band attenuation. This value is defined as the insertion loss
ae. The nominal frequency fN is fixed at 70.0 MHz without any tolerance. The values of relative attenuation arel are guaranteed for the whole operating
temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme
Data
typ. Value
tolerance / limit
Insertion loss
(reference level)
Nominal frequency
ae
22.5 dB
fN
-
max.
24.3 dB
70
MHz
Passband
PB
Pass band ripple fN ...fN ± 0.92MHz (p-p)
Pass band ripple in any 1MHz segment fN ...fN ± 0.92MHz (p-p)
-
0.3 dB
0.3 dB
f ± 0.92MHz
N
max.
0.7 dB
max.
0.5 dB
Relative attenuation ****
arel
f
N
±
1.5
…
f
N
±
4.0
f_N ±
4.0 MHz … f_N ±
10
f^-
10
MHz … _f -
50
N
N
f ^{+ 10}
N
MHz … f + 110
N
Group delay ripple fN ...fN ± 0.92MHz (p-p)
MHz
MHz
MHz
MHz
***
28 to 40 dB
45 to 55 dB
55
dB
55
dB
71
ns
min.
min.
min.
min.
max.
20 to 30 dB
30 to 45 dB
45 dB
45 dB
150 ns
Phase ripple in any 1MHz segment fN ...fN
± 0.92MHz (p-p)
1.1 °
max.
2°
Absolute group delay fN ...fN ± 0.92MHz
2.25 µs
max.
2.5 µs
Input & Output return loss fN ...fN ±
0.92MHz MHz
18
dB
min.
10 dB
Operating temperature range
OTR
-
- 20 °C ... + 80 °C
Storage temperature range
Temperature coefficient of frequency **
-
-0.034 ppm/K²
- 40 °C ... + 125 °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(Hz) = TCf(ppm/K²) x (T-T0)² x fcat(MHz).
***) Target to further improve group delay ripple, to be reviewed after evaluation of first sample.
****) Rejection increases linearly from frequecy 1 to frequency 2 with dB1 to dB2 respectively.
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.