TFS36C Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter Specification

Tfs36c.doc
VI TELEFILTER
Filter Specification
Version 1.4
TFS 36 C
28.06.2000.
1/3
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
Q-value of matching elements:
23 °C
0 dBm.
for input:
829 Ω  - 19,55 pF.
for output:
1133 Ω  - 12,78 pF.
30
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS 36C 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
40 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 36 MHz without tolerance. 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
Insertion loss (Reference level) ae
Nominal frequency :
fN
Centre frequency fc at ambient temperature TA (fCAT)
Pass band ( PB ) :
Bandwidth at operating temperature:
1 dB - band width
40 dB - band width
45 dB - band width
Amplitude ripple in pass band (p-p) :
Relative attenuation
f_N
f_N ± 1,15 MHz
f_N ± 1,3 MHz
arel
... f_N ± 0,75 MHz
... f_N ± 1,3 MHz
... f_N ± 35 MHz
typ. value
24...25 dB
36,005 MHz
1,565 MHz
2,245 MHz
2,250 MHz
0,7 dB
-
45 dB
46...65 dB
tolerance / limit
max. 36 dB
36 MHz
f_N - 0,75 MHz ... f_N + 0,75 MHz
min. 1,50 MHz
max. 2,30 MHz
max. 2,60 MHz
max. 1 dB
max. 1 dB
min. 40 dB
min. 45 dB
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB (p-p):
4,08 µs
100...120 ns
2,5...3,5° (r.m.s. 0,8 °)
max. 4° p-p
Triple transit attenuation compared to main signal
Crosstalk
58...62 dB
60...70 dB
min. 55 dB
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature: * )
Operating temperature
Storage temperature range
0 °C
0,036 ppm/°C
∆fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo (MHz)
+ 45 °C
- 25 °C ... + 85 °C
* ) fTo is reference frequence fc at frequency inversion temperature (To )
Generated:
Checked/Approved:
Dunzow W.P.
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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