TFS71F_06 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 71f.doc
VI TELEFILTER
Version 2.3
Filter specification
TFS 71F
07.11.2006
1/5
Measurement Condition
Ambient temperature TA:
Input power level:
Terminating impedances: *)
Input:
Output:
23 °C
0 dBm
1,7 kΩ || - 13,9 pF
2,2 kΩ || - 14,1 pF
Characteristics
Remark:
The reference level for the relative attenuation arel is the pass band attenuation at the nominal frequency f_N. 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
Insertion Loss
ae
(Reference Level)
typ. value
5,0 dB
Variation / Limitation
max 8,0 dB
Nominal frequency
f_N
Center frequency
f_C
3 dB - Bandwidth
BW
-
-
310
kHz
71,0 MHz
71,0 MHz ± 20 kHz
min. 200 kHz
Pass band ripple
f_N - 80 kHz ... f_N + 80 kHz
Relative Attenuation
arel
***)
f_N ± 200 kHz ... f_N ± 400 kHz
f_N ± 400 kHz ... f_N ± 600 kHz
f_N ± 600 kHz ... f_N ± 1,0 MHz
f_N -
1,0 MHz ... f_N - 1,2 MHz
f_N -
1,2 MHz ... f_N - 1,4 MHz
f_N -
1,4 MHz ... f_N - 40 MHz
f_N + 1,0 MHz ... f_N + 40 MHz
Group delay
Group delay ripple
f_N
in f_N - 80 kHz ... f_N + 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
f_N ± 800 kHz ... f_N ± 3 MHz
f_N ± 3 MHz ... f_N ± 40 MHz
-
max. 20 dBm
-
max. 22 dBm
-
max. 25 dBm
Operating Temperature Range
-
5 °C ... + 70 °C
Storage Temperature Range
Temperature Coefficient
TCf ****
-
-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:
f_in1=70.2MHz; f_in2= 69,4 MHz; P_in=-5 dBm f_measurement = 71,0MHz
second measurement:
f_in1=71.8MHz; f_in2= 72,6 MHz; P_in=-5 dBm f_measurement = 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:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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