TFS70BX Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 70bx.doc
Vectron International
Version 2.0
Filter specification
TFS 70BX
22.08.2012
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
25
°C
0
dBm
87 Ω || -41 pF
104 Ω || -33 pF.
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS70BX 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 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
15,9 dB
fN
max.
70
22 dB
MHz
Passband
Pass variation
PB
p-p
0,4 dB
f_N
±
max.
12,5 MHz
0,8 dB
Bandwidth
1 dB
3 dB
40 dB
BW
28
MHz
29
MHz
34
MHz
min.
min.
max.
25,8 MHz
27 MHz
37,5 MHz
Relative attenuation
fN
fN -
60
fN + 20
… fN ±
MHz ... fN -
MHz ... fN +
arel
12,5 MHz
20 MHz
35 MHz
0,3 dB
43
dB
43
dB
max.
min.
min.
1 dB
40 dB
40 dB
Group delay ripple**
p-p
15
ns
max. 100 ns
Absolute delay
0,74 µs
Phase ripple**
p-p
5
deg
max.
8,3 deg
Operating temperature range
OTR
- 40 °C ... + 85 °C
Storage temperature range
- 40 °C ... + 85 °C
Temperature coefficient of frequency
TCf ***
-90 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.
**) 90% of 3dB bandwidth
***) ∆f(Hz) = TCf(ppm/K) x (T-T0) x fcat(MHz).
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.