TFS140G1 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Tfs140G1.doc
VI TELEFILTER
Filter specification
Version 1.1
12.07.2002
TFS 140G1
1/5
1. Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc * ) :
Source impedance:
Load impedance:
23 °C
0 dBm.
for input: 102
for output: 122
50
50
- 9,7 pF.
- 9,5. pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 140G1 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
typ. value
tolerance / limit
Insertion loss (Reference level)
ae
Centre frequency fc at ambient temperature TA (fCAT)
20,5 dB
140,01 MHz
max. 25
140 ± 0,09
dB
MHz
Pass band :
PB
Amplitude ripple (p-p) in: fC .... fC ± 0,70 MHz
Bandwidth at ambient temperature:
1 dB
3 dB
20 dB
40 dB
45 dB
0,5...0,6 dB
1,50
1,74
2,29
2,55
2,65...3,10
MHz
MHz
MHz
MHz
MHz
fC - 0,85 MHz.....fC + 0,85 MHz
max. 1
dB
min. 1,40 MHz
min. 1,70 MHz
max. 2,70 MHz
max. 4,60 MHz
Relative attenuation
fC _.....
fC ± 0,70 MHz .....
fC ± 1,35
fC ± 2,3
fC ± 39
MHz .....
MHz .....
MHz .....
fC ± 0,70
fC ± 0,85
fC ± 2,3
fC ± 39
fC ± 41
arel
MHz
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):
0,6 dB
2,5 dB
45...55
dB
52...60
dB
65...70
dB
2,55 µs
80
ns
1,8°...2,5° ( r.m.s. 0,8° )
max. 1
dB
max. 3
dB
min. 40
dB
min. 45
dB
min. 60
dB
max. 3,0 µs
max. 150
ns
max. 6° p-p
S11 in PB :
S22 in PB :
Triple transit attenuation compared to main signal
Crosstalk
2
dB
2
dB
50
dB
55...65
dB
min. 40
dB
Substrate material
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature: ** )
Operating temperature range
Storage temperature range
Quartz
25°...30° C
-0,036...-0,045 ppm/K²
fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo (MHz)
- 40 °C ... + 85 °C
- 40 °C ... + 85 °C
*) 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.
** ) fTo is reference frequency fc at frequency inversion temperature (To )
Generated:
Dunzow W.
Checked / approved:
Dr. Bert Wall
VI TELEFILTER
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.