TFS215C Datasheet, PDF (1/5 Pages) Vectron International, Inc – VI TELEFILTER Filter specification

Filename: tfs 215c.doc
VI TELEFILTER
Version 1.1
Filter specification
TFS 215C
4.3.2008
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
External Coil:
23
°C
0
dBm
1000 || -2,33 pF
1000 || -2,08 pF
120
nH
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 215C 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 3 dB filter
attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 215 MHz without any tolerance. The given values for both the relative
attenuation arel and the group delay ripple have to be achieved 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
(reference level)
Nominal frequency
Centre frequency
Passband
Pass band ripple
Bandwidth
2 dB
Relative attenuation
fN
fN ±
fN ±
fN ±
fN ±
fN ±
400
600
800
1,6
3,0
… fN ±
kHz … fN ±
kHz … fN ±
kHz … fN ±
MHz … fN ±
MHz … fN ±
100
600
800
1,6
3,0
30,0
Group delay ripple within PB
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
ae
fN
fC
PB
BW
arel
kHz
kHz
kHz
MHz
MHz
MHz
OTR
TCf **
typ. value
3,4 dB
-
215,015 MHz
-
0,4 dB
300
kHz
0,7
33
53
53
47
55
0,9
-
-
25
-0,04
dB
dB
dB
dB
dB
dB
°C
ppm/K²
tolerance / limit
max.
5 dB
fN
max.
215,0
-
± 75,0
2
MHz
kHz
dB
min.
150 kHz
max.
min.
min.
min.
min.
min.
3 dB
25 dB
35 dB
40 dB
45 dB
53 dB
max.
1,2 µs
- 30 °C ... + 85°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.
**) 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:
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.