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TFS350B Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 350b.doc
VI TELEFILTER
Version 1.3
Filter specification
TFS 350B
13.05.2004
1/5
Measurement condition
Ambie0nt Temperature: 23 C
0
1.27
Input Power Level:
0 dBm
Term-1i0nating Impedance at fc*: input:
138 // -8,9 pF
-1
1.24
-20
output:
63 // -9,0 pF
-2
1.21
Cha-3r0acteristics
-3
1.18
Bd -40
RTiagnudentnii hseeemr--rt65aieo00rfnekr:leonscsealee.veTlhefornothmeinraellaftrievqeuaetntecynufaNtioisn
arel
fixed
of
at
TFS 350B is the
350 MHz without
Bd -4
maninyiudenagnmtiitoulemr--a65nocf eth. eThpeasgsivbeannvdalautetesnfuoartitohne
1.15
µs
amin. This minimum is
relative attenuation arel
daenfdi11n..e01th92ddeayneli
as the
group
mdelay-7r0ipple have to be reached at the frequencies given below, even if the cemntre-7frequency fc is shifted due to the temperature coefficient o1f .f0r6equency
TCf i-n80the operating temperature range and due to a production tolerance for the ce-8ntre frequency fc.
1.03
D a-9t0a
Ins-e1r03t0i3o5n L3o3s8s 341
344
3fr4e7quen3c5ya0ine M=3H5az3min356
359
362
365
(Reference Level)
typ-9. Value
Limit
1
21-,143046dB346.8
347.6
348.4
349.2 350 350.8
frequency inmMaHxz.
351.6 352.4 353.2
25,0 dB
3504.97
Nominal Frequency
fN
-
350,0 MHz
Pass Band
PB
Amplitude Ripple within PB
-
fN
2,0 MHz
-
max. 0,5 dB p-p
Return loss
15 dB
-
Group Delay Variation within PB
35 ns
max. 40 ns
Relative Attenuation
fN
... fN ±
fN ± 5,7 MHz ... fN ±
fN ± 30 MHz ... fN ±
2,0
30
350
arel
MHz
MHz
MHz
0,4 dB
50 dB
58 dB
max.
min.
min.
0,7 dB
40 dB
50 dB
Operating Temperature Range
Storage Temperature Range
Turnover temperature To
Temperature Coefficient of frequency TCf**
-
-
20 °C
- 0,036 ppm / K2
-40...
-55... +85
-
-
+85° C
°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:
Filter characteristic
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.