TFS70H22 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

tfs70H22.doc
VI TELEFILTER
Filter specification
Version 1.1
TFS 70H22
04.03.2002
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc * ) :
25 °C.
0 dBm.
for input:
180
for output:
240
- 17,6 pF.
- 13,7 pF.
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS 70H22 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 20 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 (fCTA)
Pass band :
PB
Amplitude ripple in : fc - 155 kHz ... fc + 155 kHz
Bandwidth ( BW ) :
1 dB
3 dB
at ambient temperature TA
10 dB
20 dB
40 dB
50 dB
17 dB
70,0 MHz
-
350 kHz
595
1020 kHz
1360 kHz
1735 kHz
1880 kHz
max. 24 dB
70,0 ± 0,05 MHz
fc ... fc ± 155 kHz
max. 1 dB
min. 310 kHz
min. 500 kHz
max.1900 kHz
Relative attenuation
arel
fc - 155 kHz ..... fc + 155 kHz
fc ± 155 kHz ..... fc ± 250 kHz
fc ± 950 kHz ..... fc ±
fc ± 3 MHz ..... fc ±
fc ± 9 kHz ..... fc ±
3 MHz
9 MHz
30 MHz
Group delay ( mean value in PB ):
Group delay ripple in
fc ... fc ± 250 kHz :
Deviation from linear phase in PB :
-
-
55 dB
55 dB
65 dB
2,8 µs
100 ns
1,4 °
max. 1 dB
max. 3 dB
min. 40 dB
min. 45 dB
min. 50 dB
max. 300 ns
max. 3 °
Triple transit attenuation compared to main signal
Crosstalk
48 dB
55 dB
Frequency inversion temperature ( To ) :
Temperature coefficient of frequency ( Tcf ) :
Frequency deviation of fc over temperature: ** )
Operating temperature range
Storage temperature range
30°C...35°C
-0,036 ppm/K²
fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo (MHz)
- 25 °C ... + 80 °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 frequence fc at frequency inversion temperature (To )
Generated:
Checked/Approved:
W. Dunzow
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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