TFS76 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

TFS 76.doc
VI TELEFILTER
Filter Specification
Version 1.2
TFS 76
01.03.2002
1/5
1. Measurement condition
Ambient temperature T_A:
Input power level:
Terminating impedances at fc *):
23 °C
0 dBm
for input:
for output:
56 Ω // 28,5 pF
50 Ω // 0 pF
2. Characteristics
Remark: Reference level for the relative attenuation arel of the TFS 76 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 centre frequency fc is the arithmetic mean value of the upper and lower
frequencies at the 1 dB filter attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tc_f is valid for both the
reference frequency fc and the frequency response of the filter in the operating temperature range.
Data
typ. value
tolerance / limit
Insertion Loss
ae
(Reference level)
Centre Frequency at ambient temperature fC
Passband
PB
Relative Attenuation
arel
fc
.......... fc ± 3,20 MHz
fc ± 3,20 MHz .......... fc ± 3,50 MHz
fc ± 3,65 MHz .......... fc ± 4,85 MHz
fc ± 4,85 MHz .......... fc ± 5,00 MHz
fc - 71,8 MHz ......... fc - 5,00 MHz
fc + 5,00 MHz ......... fc + 123,20 MHz
Deviation from Linear Phase in PB
Group Delay Ripple in PB
Average Group Delay in PB
20,8 dB
max. 23 dB
76,8 MHz ±
75 kHz
fc ± 3,2 MHz
0,35 dB
61
dB
65
dB
55
dB
0,2 °rms
60
ns
1,9 µs
max. 0,7 dB
max. 1 dB
min. 1 dB
min. 51 dB
min. 50 dB
min. 50 dB
max. 2 °rms
max. 100 ns
max. 3 µs
Temperature Coefficient of Frequency
- 76
ppm/K
Operating Temperature Range
- 0 °C ... + 70 °C
Storage Temperature Range
- 20 °C ... + 80 °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:
VI TELEFILTER
Vectron International, Inc.
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267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
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