Filename: tfs 620.doc
Version 1.5
03.06.2005
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
0
°C
dBm
Filter specification
TFS 620
1/5
300
Ω
|| -4.9 pF
200
Ω
|| -6.7 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 620 is the minimum of the pass band attenuation. This value 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 620 MHz without any tolerance. The values of relative attenuation arel are guaranteed for the whole operating
temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
Data
Insertion loss
(reference level)
Nominal frequency
(at 70°C)
Centre frequency
(at ambient temperature)
Passband
Pass band ripple
Relative attenuation
f
N
f
N
f
N
f
N
f
N
...
-
-
+
+
610
26,5
25,5
26,5
MHz
MHz
MHz
MHz
…
…
…
…
f
N
f
N
f
N
f
N
f
N
±
-
-
+
+
15
26,6
24
26,5
380
MHz
MHz
MHz
MHz
MHz
arel
f
N
f
C
ae
typ. value
12,7
-
620,6
31,3
0,5
MMHz
MHz
dB
dB
tolerance / limit
max.
14
-
620
-
min.
f
N
± 15
1
MHz
dB
dB
MHz
0,5
48
42
38
48
1.7:1
7
OTR
-
-
TCf
-20
dB
dB
dB
dB
dB
max.
min.
min.
min.
min.
max.
1
40
37
35
40
2:1
12
dB
dB
dB
dB
dB
VSWR
within f
N
± 15 MHz
Phase ripple within PB (p-p)
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
deg
max.
deg
°C
°C
+ 65 °C ... + 75
- 40 °C ... + 85
ppm/K
-
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.
VECTRON [ Vectron International, Inc ]
