TFS140 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Filter specification

file name: Tfs 140.doc
VI TELEFILTER
Filter specification
Version 2.3
TFS 140
05.03.2002
1/4
1. Measurement condition :
Ambient temperature T_A:
Input power level:
Terminating impedances in fc * ) :
23 °C
0 dBm.
for input:
for output:
1177 Ω ⎟⎢ - 6,17 pF.
1330 Ω ⎟⎢ - 5,33 pF.
(typical value )
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 140 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 temperature coefficient of frequency Tc_f is valid
both for 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
typ. value
tolerance / limit
Insertion loss (Reference level)
ae
Centre frequency fc at ambient temperature T_A (f_CAT)
Pass band at ambient temperature T_A: PB
22,5 dB
140,01 MHz
max. 24
dB
140,00 ± 0,10 MHz
f_C - 3,0 MHz ... f_C + 3,0 MHz
Amplitude ripple (p-p): f_C – 2,6 MHz ... f_C + 2,6 MHz
f_C ± 2,6 MHz ... f_C ± 2,8 MHz
Bandwidth at ambient temperature T_A :
1 dB
3 dB
3 dB
20 dB
40 dB
45 dB
0,5 dB
0,7 dB
5,76 MHz
6,24 MHz
6,24 MHz
6,30 MHz
7,95 MHz
8...8,6 MHz
max. 1
dB
max. 1
dB
min. 5,6 MHz
min. 6,0 MHz
max. 6,4 MHz
max. 8,2 MHz
max. 9,0 MHz
Relative attenuation
arel
f_C ± 2,6 MHz ... f_C ± 2,8 MHz
f_C ± 2,8 MHz ... f_C ± 3,0 MHz
f_C ± 3,2 MHz ... f_C ± 4,1 MHz
f_C ± 4,1 MHz ... f_C ± 4,5 MHz
f_C ± 4,5 MHz ... f_C ± 12 MHz
f_C - 65 MHz ... f_C - 12 MHz
f_C + 12 MHz ... f_C + 75 MHz
f_C + 75 MHz ... f_C + 130 MHz
f_C + 130 MHz ... f_C + 460 MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB band (p-p):
-
dB
dB
45 dB
48...53 dB
75...55 dB
55...75 dB
48...50 dB
70 dB
1,84 µs
50...60 ns
4..4,5 ° (r.m.s. 1,3°)
max. 1
dB
max. 3
dB
min. 3
dB
min. 40
dB
min. 45
dB
min. 50
dB
min. 50
dB
min. 47
dB
max. 2,0 µs
max. 80
ns
VSWR (S11) / (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
(2:1) / (2:1)
49 dB
55...60 dB
Frequency inversion temperature ( T_o )
Temperature coefficient of frequency ( Tc_f )
Frequency deviation of fc over temperature: * )
Operating temperature range
Storage temperature range
Input power
25° C
-0,045 ppm/K²
∆fc(Hz) = Tc_f(ppm/K) x (T - T_o)² x f_To (MHz)
- 25 °C ... + 80 °C
- 40 °C ... + 85 °C
max. 20
dBm
*) 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_To is reference frequence fc at frequency inversion temperature (T_o )
Generated:
Checked/Approved:
Dunzow W.
Dr. Bert Wall
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
E-Mail: [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