TFS35B Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Tfs35B.doc
VI TELEFILTER
Filter specification
version 1.0
TFS 35 B
10.02.2003
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc * ):
Source impedance .
Load impedance .
25 °C
0 dBm
for input:
310
- 25,7 pF.
for output:
690
- 10,1 pF.
50 .
50 .
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 35B 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 reference 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 35,42 MHz without tolerance.
All specified values are guarantied in operating temperature range.
Data
typ. value
tolerance / limit
Insertion loss (Reference level)
ae
14,8 dB
max. 17 dB
Nominal frequency
fN
-
35,42
MHz
Centre frequency
fc at ambient temperature (fCTA)
35,42 MHz
-
Pass band :
PB
Amplitude ripple in PB (p-p) :
0,6 dB
fC ... fC ± 0,80 MHz
max.
1,6 dB
Bandwidth :
BW
1 dB
3 dB
2,01 MHz
2,44 MHz
min.
1,7 MHz
-
21 dB
3,32 MHz
max.
3,74 MHz
Relative attenuation in O.T.R. :
arel
34,62 MHz ... 36,22 MHz
0,8 dB
max.
1,6 dB
0,1
7
28
31
MHz ... 7
MHz ... 28
MHz ... 31
MHz ... 33,5
MHz
MHz
MHz
MHz
55...27
dB
55...50
dB
35
dB
40...30
dB
-
min. 35 dB
min. 30 dB
min. 21 dB
37,34
39,84
62,42
72,42
MHz ... 39,84
MHz ... 62,42
MHz ... 72,42
MHz ... 110,42
MHz
MHz
MHz
MHz
27...42
dB
45...60
dB
36
dB
70...80
dB
min. 21 dB
min. 35 dB
min. 30 dB
min. 40 dB
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p) :
Deviation from linear phase in PB (p-p) :
1,4
200
±2
µs
ns
degree
max.
max.
1,7 µs
300 ns
-
Triple transit attenuation compared to main signal
Crosstalk attenuation compared to main signal
35
dB
50
dB
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature
Operating temperature range ( O.T.R. )
Storage temperature range
- 20
ppm/K
-
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCTA (MHz)
-
-
- 40 °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.
Generated:
Checked / approved:
Chillla
Dr. Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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