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TFS70L9 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification
Tfs70L9.doc
VI TELEFILTER
Filter Specification
version 1.0
TFS 70L9
10.09.2001
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc * ):
25 °C
0 dBm
for input:
260
- 14,33 pF.
for output:
180
- 17,53 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 70L9 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 frequence 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 (fCTA)
9,5
70,0
dB
MHz
max. 10,5 dB
70,0 ± 0,10 MHz
Pass band ( PB ) :
Amplitude ripple in PB (p-p) :
0,4 dB
fC - 4,2 MHz ... fC + 4,2 MHz
max.
1 dB
Bandwidth at ambient temperature TA:
1 dB - band width
3 dB - band width
40 dB - band width
8,75
9,46
13,44
MHz
MHz
MHz
min.
min.
max.
8,4 MHz
9,0 MHz
14,5 MHz
Relative attenuation
arel
fc
... fc ± 4,2 MHz
fc ± 4,2 MHz ... fc ± 4,5 MHz
fc - 20,0 MHz ... fc - 7,25 MHz
fc + 7,25 MHz ... fc +20,0 MHz
Group delay ( mean value in PB ):
Group delay ripple in
fc ... fc ± 4,1 MHz ( p-p ) :
Deviation from linear phase in fc ... fc ± 4,1 MHz ( p-p ) :
Triple transit attenuation compared to main signal
Crosstalk attenuation compared to main signal
-
-
47...43
43...45
1,1
70
5,5
44
50
dB
dB
µs
ns
degree
dB
dB
max.
max.
min.
min.
max.
max.
max.
1 dB
3 dB
40 dB
40 dB
1,5 µs
100 ns
10 degree
Temperature coefficient of frequency ( Tcf ) :
Frequency deviation of fc over temperature :
Operating temperature range ( OTR ) :
Storage temperature range :
-87
ppm/K
-94 ppm/K
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCTA (MHz)
- 20 °C ... + 70 °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.
Generated:
Checked/Approved:
Dunzow W.
Dr., Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
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.