The reference level for the relative attenuation arel of the TFS 150S 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 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
Insertion loss
(reference level)
Nominal frequency
Centre frequency
Passband
Pass band ripple (p-p)
Bandwidth
0,7 dB
3
dB
40
dB
45
dB
Relative attenuation
f
C
… f
C
±
2,5015 MHz … f
C
±
f
C
±
144,500 MHz … f
C
-
f
C
-
3,150 MHz … f
C
±
f
C
±
3,350 MHz … f
C
±
f
C
±
3,750 MHz … f
C
±
f
C
±
4,825 MHz … f
C
+
f
C
+
Absolute group delay within PB
Group delay ripple within PB (p-p)
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
TCf **
OTR
2,5015
2,675
4,825
3,350
3,750
4,825
428,500
BW
PB
ae
f
N
f
C
typ. value
21,6
-
150
-
0,25
MHz
dB
tolerance / limit
max.
25
150,0
dB
MHz
150,0±0,1 MHz
f
C
max.
±2,5015
0,7
MHz
dB
5,20
5,53
6,49
6,54
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
0,25
1,5
65
20
45
55
60
2,58
44
-
-
20
-0,036
MHz
MHz
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
µs
ns
min.
min.
max.
max.
max.
max.
min.
min.
min.
min.
min.
max.
max.
5,03
5,35
7,50
9,70
0,7
3,0
45
15
25
40
45
2,7
120
MHz
MHz
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
µs
ns
- 25 °C ... + 80°C
- 40 °C ... + 85°C
°C
ppm/K
2
-
-
*) 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
c(Hz) = Tc
f
(ppm/K
2
) x (T - T
A
)
2
x f
CAT
(MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
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.
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