TFS45C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 45c.doc
VI TELEFILTER
Version 1.1
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
1410 Ω || -25,7 pF
1660 Ω || -22,4 pF
TFS 45C
13.07.2006
1/5
Characteristics
Remark:
The nominal frequency fN is fixed at 45,0 MHz. The insertion loss ae is defined as loss value determined at fN. Reference level for the relative attenuation
arel of the TFS 45C is 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. All specified data are met within the operating temperature range.
Data
Insertion loss
ae
(reference level)
Nominal frequency
f_N
Centre frequency
f_C
Passband
Pass band ripple
Bandwidth
BW
3 dB
20 dB
Relative attenuation
f_C
f_C ± 100
f_C ± 475
f_C ±
1
f_C ±
3
f_C ± 10
… f_C ± 100
kHz
f_C ± 170
kHz ... f_C ±
1
MHz ... f_C ±
3
MHz ... f_C ± 10
MHz ... f_C ± 25
arel
kHz
kHz
MHz
MHz
MHz
MHz
Group delay
mean value in PB
Group delay ripple within PB
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
OTR
TCf **
typ. value
5,2 dB
-
45,00
-
0,1
MHz
dB
-
761
kHz
0,5
1,5
27
44
49
80
2
150
-
-
30
-0,04
dB
dB
dB
dB
dB
dB
µs
ns
°C
ppm/K²
tolerance / limit
max.
7,0 dB
45,00 MHz
max. ± 20,0 kHz
f_C
± 100,0 kHz
max.
1,5 dB
min.
340 kHz
max. 950 kHz
max.
max.
min.
min.
min.
min.
1,5 dB
3 dB
20 dB
30 dB
35 dB
44 dB
max.
2,7 µs
max. 300 ns
- 30 °C ... + 85°C
- 45 °C ... + 95°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:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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