TFS380G Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – TELEFILTER

Filename: tfs380g.doc
VI TELEFILTER
version 1.1
Filter Specification
TFS 380G
10.09.2003
1/5
Measurement condition
Ambient temperature:
23
Input power level:
0
Terminating impedance at fc *: input: 880
output: 850
°C
dBm
Ω II – 4,5 pF
Ω II – 3,7 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS 380G is the minimum of the pass band attenuation amin. 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 1 dB filter attenuation level
relative to the insertion loss ae. The given values for 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
limit
Insertion loss
ae = amin
12,6 dB
max. 14 dB
Nominal frequency fN
Centre frequency fc
-
380 MHz
380 MHz
-
Relative attenuation arel
f_N
... f_N ±
f_N ± 1,72 kHz ... f_N ±
f_N ± 2,5 kHz ... f_N ±
f_N ± 3 MHz ... f_N ±
f_N ± 4 MHz ... f_N ±
f_N - 375 MHz ... f_N -
f_N - 50 MHz ... f_N -
f_N - 14,5 MHz ... f_N -
f_N + 6 MHz ... f_N +
f_N + 50 MHz ... f_N +
1,72
1,92
3
4
6
50
14,5
6
50
3
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
GHz
0,5 dB
1,0 dB
8 dB
28 dB
41 dB
60 dB
53 dB
45 dB
43 dB
45 dB
max. 1 dB
max. 1,5 dB
min. 5 dB
min. 22 dB
min. 35 dB
min. 55 dB
min. 50 dB
min. 40 dB
min. 40 dB
min. 40 dB
Group delay ripple in f_N ± 1,92 MHz
65 ns
max. 100 ns
Phase linearity
in f_N ± 1,92 MHz
0,8 deg rms
max. 3 deg rms
Input power level
-
max. + 20 dBm
VSWR
within f_N ± 1,92 MHz
Operating temperature range
16 dB
-
min. 12 dB
-10 °C...+ 85 °C
Storage temperature range
-
- 35 °C.. + 85 °C
Temperature coefficient
TC **
- 0,04 ppm/K²
-
Frequency inversion temperature T₀
45 °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
**) ∆f(Hz) = TCf(ppm/K) x (T-T₀)² x fTo(MHz)
generated:
checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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