TFS322 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 322.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
External Coil:
23
°C
0
dBm
490 Ω || -1.6 pF
490 Ω || -1.6 pF
175 nH
TFS 322
24.08.2006
1/5
Characteristics
Remark:
The nominal frequency fN is fixed at 322,5 MHz. The insertion loss ae is defined as loss value determined at fN. Reference level for the relative
attenuation arel of the TFS 322 is 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. All specified data are met within the operating temperature range.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
Nominal frequency
Centre frequency
ae
4
dB
f_N
-
f_C
322,516 MHz
max.
6,5 dB
322,5 MHz
-
Passband
-
fN ± 70 kHz
Bandwidth
3 dB
BW
310
kHz
min.
280 kHz
Relative attenuation
f_N ± 400
f_N ± 400
f_N ± 600
kHz
kHz ... f_N ± 600
kHz ... f_N ± 13
arel
kHz
MHz
29
dB
29
dB
42
dB
min.
15 dB
min.
27 dB
min.
35 dB
Group delay ripple
f_N ± 70
kHz
0,8 µs
max.
2 µs
Input power level
-
max.
13 dBm
Operating temperature range
OTR
-
-20 °C ... +70 °C
Storage temperature range
-
-30 °C ... +85 °C
Frequency inversion temperature
25
°C
-
Temperature coefficient of frequency
TCf **
-0,032 ppm/K²
-
*) 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/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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