TFS70H312 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 70h312.doc
VI TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
Version 1.1
Filter specification
25.
°C
0
dBm
50 Ω || 0 pF
50 Ω || 0 pF
TFS 70H312
30.10.2006
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 70H312 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 20 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. The frequency shift of the filter in the operating temperature range is not included in the
production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
Centre frequency
ae
24,6 dB
f_C
70,0 MHz
max.
26 dB
70,0 ± 0,1 MHz
Passband
-
fc
± 7,5 MHz
Bandwidth
3 dB
BW
16,8 MHz
min.
16 MHz
Relative attenuation
f_C
… f_C ±
f_C ±
f_C ±
f_C +
7,5
10,45
15
MHz … f_C ±
MHz … f_C ±
MHz … f_C +
Group delay ripple within PB (p-p)
7,5
8
15
60
arel
MHz
MHz
MHz
MHz
0,7 dB
1,8 dB
47
dB
53
dB
20
ns
max.
max.
min.
min.
max.
1 dB
3 dB
40 dB
50 dB
50 ns
Deviation from linear phase within PB
1,1 °
max.
4°
Operating temperature range
OTR
-
- 25 °C ... + 80 °C
Storage temperature range
-
- 40 °C ... + 85 °C
Temperature coefficient of frequency
TCf **
-75
ppm/K
-
*) 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.
**) ∆fc(Hz) = Tc_f(ppm/K) x (T - T_o) x f_CAT (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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