TFS1220C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 1220c.doc
VI TELEFILTER
Version 1.1
Filter specification
TFS 1220C
17.08.2005
1/5
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedance: *
Input:
200
Ω (balanced)
Output:
200
Ω (balanced)
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS1220C 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 3 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
Insertion loss
ae
(reference level)
Nominal frequency
f_N
Centre frequency
f_C
Passband
PB
Pass band ripple
Bandwidth
BW
1,5 dB
Relative attenuation
f_C -
4
MHz … f_C +
4
f_C -
36
MHz
f_C -
44
MHz
f_C -
72
MHz
f_C -
88
MHz
f_C -
68
f_C -
76
f_C -
85
f_C -
91
f_C + 70
MHz … f_C -
76
MHz … f_C -
85
MHz … f_C -
91
MHz … f_C - 720
MHz … f_C + 780
arel
MHz
MHz
MHz
MHz
MHz
MHz
Group delay ripple
f_C -
4
MHz … f_C +
4
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
MHz
OTR
TCf ***
typ. value
1,9 dB
-
-
0,7 dB
25
MHz
0,7 dB
52
dB
55
dB
62
dB
53
dB
53
dB
53
dB
52
dB
51
dB
57
dB
4
ns
-
-
- 37
ppm/K
tolerance / limit
max.
5,8 dB
f_C
max.
1220 MHz
1220 ± 2 MHz
± 4 MHz
1,5 dB
min.
8 MHz
max.
min.
min.
min.
min.
min.
min.
min.
min.
min.
1,5 dB
40,2 dB
44,2 dB
42,0 dB
44,2 dB
40,2 dB
44,2 dB
44,2 dB
44,2 dB
44,2 dB
max.
15 ns
- 30 °C ... + 80°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.
**) Aperture 500 kHz
***) ∆f(Hz) = TCf(ppm/K) x (T-T₀) 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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