TFS140G Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specificationl

tfs 140G.doc
VI TELEFILTER
Filter Specification
Version 1.3
28.11.2000
TFS 140G - 1/5
1. Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
Q-value of matching elements:
Source impedance:
Load impedance:
23 °C
0 dBm.
for input:
for output:
70
50 Ω
50 Ω
180 Ω  - 16,5 pF.
200 Ω  - 12,0 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 140G 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 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 not included in the production tolerance scheme
Data
Insertion loss (Reference level) ae
Centre frequency fc at ambient temperature TA (fCAT)
Pass band (PB) at ambient temperature TA:
Amplitude ripple (p-p):
fC ..... fC ± 0,70 MHz
Bandwidth at ambient temperature:
1 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
45 dB - band width
Relative attenuation
arel
fC
fC ± 0,70
fC ± 1,30
fC ± 2,30
............
MHz .....
MHz .....
MHz .....
fC ± 0,70
fC ± 0,85
fC ± 2,30
fC ± 40
MHz
MHz
MHz
MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB (p-p):
Input VSWR (S11) in PB :
Output VSWR (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
Substrate material
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature: * )
Operating temperature range
Storage temperature range
typ. value
18...18,5 dB
140,01 MHz
0,5...0,6 dB
1,50
1,74
2,29
2,55
2,65...3,10
MHz
MHz
MHz
MHz
MHz
tolerance / limit
max. 20 dB
140 ± 0,06 MHz
fC - 0,85 MHz.....fC + 0,85 MHz
max. 1 dB
min. 1,40 MHz
min. 1,70 MHz
max. 2,60 MHz
max. 4,60 MHz
0,6 dB
2,5 dB
42...55 dB
55....70 dB
max.
max.
min.
min.
1 dB
3 dB
40 dB
45 dB
2,54 µs
140...160 ns
2,8°...4,5° ( r.m.s. 0,8° )
max. 3,0 µs
max. 200 ns
max. 5°
(1,6...1,8) : 1
(1,4...1,8) : 1
41...42 dB
55...65 dB
max. 2 : 1
max. 2 : 1
min. 40 dB
Quartz
25°...30° C
-0,036...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 frequence fc at frequency inversion temperature (To )
Generated:
Dunzow W.P.
Checked/Approved:
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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