TFS190T Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 190t.doc
VI TELEFILTER
Version 1.2
Filter specification
TFS 190T
10.08.2005
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
25
°C
0
dBm
1430 Ω || -8,2 pF
1420 Ω || -7,9 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 190T 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 1 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 190.0 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 in the operating temperature range and due to a production tolerance for the centre frequency fc.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
ae
12,0 dB
max.
16,0 dB
Nominal frequency
f_N
190,0 MHz
Centre frequency
Passband
f_C
190,0 MHz
PB
-
-
f_N
± 1,28 MHz
Pass band ripple
p-p
0,5 dB
max.
1 dB
Relative attenuation
f_N
... f_N ±
f_N ±
f_N ±
1,8 MHz ... f_N ±
3,0 MHz ... f_N ±
Average group delay f_N ±1,088MHz
Group delay ripple f_N ±1,088MHz
Phase linearity f_N ±1,088MHz
1,28
3,0
20,0
arel
MHz
MHz
MHz
p-p
p-p
0,5 dB
45
dB
50
dB
1,52 µs
180
ns
6,5 deg
max.
min.
min.
max.
max.
1 dB
40 dB
45 dB
2,0 µs
280 ns
-
Return loss f_N ±1,088MHz
Input power level
17
dB
-
min.
max.
10 dB
10 dBm
Operating temperature range
OTR
-
0 °C ... + 80 °C
Storage temperature range
-
-35 °C ... + 85 °C
Turn over temperature
34
°C
Temperature coefficient of frequency
TCf **
-0,04 ppm/K²
-
*) 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 fTo(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.