TFS71F Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

tfs71f.doc
VI TELEFILTER
Version 2.2
Filter Specification
TFS 71 F
16.04.2003
1/5
Measurement Condition
Ambient temperature TA:
Input power level:
Terminating impedances: *)
Input:
Output:
23 °C
0 dBm
1,7 k || - 13,9 pF
2,2 k || - 14,1 pF
Characteristics
Remark:
The reference level for the relative attenuation arel is the pass band attenuation at the nominal frequency fN. This value is defined as the insertion
loss ae. The centre 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 given values for the centre frequency, the relative attenuation arel and the group delay ripple have to be reached at the
frequencies given below, even if the centre frequency fc is shifted due to the temperature coefficient of frequency TCf in the operating
temperature range and due to a production tolerance for the centre frequency fc.
Data
typ. value
Variation / Limitation
Insertion Loss
ae
(Reference Level)
Nominal frequency
fN
Center frequency
fN
3 dB - Bandwidth
BW
5,0 dB
-
-
310
kHz
max 8,0 dB
71,0 MHz
71,0 MHz
20 kHz
min. 200 kHz
Pass band ripple
fN - 80 kHz ... fN + 80 kHz
Relative Attenuation
arel
***)
fN ± 200 kHz ... fN ± 400 kHz
fN 400 kHz ... fN 600 kHz
fN 600 kHz ... fN
1,0 MHz
fN -
1,0 MHz ... fN - 1,2 MHz
fN -
1,2 MHz ... fN - 1,4 MHz
fN -
1,4 MHz ... fN - 40 MHz
fN + 1,0 MHz ... fN + 40 MHz
Group delay
fN
Group delay ripple in fN - 80 kHz ... fN + 80 kHz
Input Intermodulation
**)
0,5 dB
9
dB
35
dB
38
dB
48
dB
48
dB
47
dB
40
dB
3,1 µs
350
ns
-
max. 0,75 dB
min. 3
min. 25
min. 35
min. 42
min. 40
min. 35
min. 35
max. 5
max. 1
max. - 81
dB
dB
dB
dB
dB
dB
dB
µs
µs
dBm
Input power level
fN 400 kHz ... fN
fN 800 kHz ... fN
fN 3 MHz ... fN
600 kHz
3 MHz
40 MHz
-
max. 0 dBm
-
max. +12 dBm
-
max. +22 dBm
-
max. +25 dBm
Operating Temperature Range
-
5 °C ... + 70 °C
Storage Temperature Range
Temperature Coefficient
TC 2nd order ****)
-
-0,032 ppm/K²
- 40°C ... + 85 °C
Frequency inversion temperature T0
+ 25
°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
**) first measurement:
fin1=70.2MHz; fin2= 69,4 MHz; Pin=-5 dBm fmeasurement = 71,0MHz
second measurement:
fin1=71.8MHz; fin2= 72,6 MHz; Pin=-5 dBm fmeasurement = 71,0MHz
***) It is allowed to have max. 3 spurious responses in the high frequency stop band range of less than 100 kHz bandwidth (3dB) with a rejection
of 10 dB less than specified here
****) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz)
generated:
checked / approved:
TELEFILTER GmbH
.
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D 14 513 TELTOW / Germany
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