TFH70E Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

File name: TFH70E.doc
VI TELEFILTER
Filter Specification
Version 1.2
TFH 70E
09.03.2001
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
Q-value of matching elements:
23 °C
0 dBm.
for input:
for output:
> 50
1287 Ω  - 6,97 pF.
1227 Ω  - 7,18 pF.
2. Characteristics :
Remark: The insertion loss ae is defined as the insertion loss at the nominal frequency f_N . Reference level for the relative attenuation arel of the
TFH 70E is the insertion loss. The reference frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter
attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tcf is valid both for the reference frequency fc and the
frequency response of the filter in the 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) ae
Nominal frequency f_N
Centre frequency fc at ambient temperature TA (fCAT)
Pass band at ambient temperature TA: ( PB )
25
dB
70,01 MHz
max. 27
70
70,0 ± 0,09
fN .... fN ± 1,5
dB
MHz
MHz
MHz
Amplitude ripple in O.T.R. (p-p) in : fN ... fN ± 1,4 MHz
Bandwidth in O.T.R. :
0,8 dB - band width
1 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
45 dB - band width
0,5 dB
3,19 MHz
3,22 MHz
3,61 MHz
4,66 MHz
5,21 MHz
5,31 MHz
max.
0,8 dB
min.
min.
min.
max.
2,8 MHz
3,0 MHz
3,5 MHz
5,6 MHz
Relative attenuation
arel
fN _..... fN ± 1,4 MHz
fN ± 1,4 MHz ... fN ± 1,5 MHz
fN ± 1,5 MHz ... fN ± 1,75 MHz
fN ± 2,8 MHz ... fN ± 5,0 MHz
fN ± 5,0 MHz ... fN ± 20 MHz
fN - 65 MHz ... fN - 20 MHz
fN + 35 MHz ... fN + 63 MHz
fN + 63 MHz ... fN + 200 MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB band (p-p):
0,5 dB
0,7 dB
2,5 dB
44...53
dB
53...65
dB
75...65
dB
42...45
dB
65...70
dB
2,76 µs
45
ns
2,6° (r.m.s. 0,6°)
max.
max.
max.
min.
min.
0,8 dB
1
dB
3
dB
40
dB
50
dB
max. 100
ns
max.
6
°
(S11) / (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
3 / 3 dB
59
dB
52
dB
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of f_C over temperature: * )
Operating temperature range ( O.T.R. )
Storage temperature range
30
°C
-0,045 ppm/K²
∆fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo (MHz)
0 °C ... + 70 °C
-40 °C ... + 85 °C
* ) fTo is reference frequency fc at frequency inversion temperature (To )
Generated:
Checked/Approved:
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