TFS140K Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

File name: Tfs140K.doc
VI TELEFILTER
Filter specification
version 1.1
26.02.2002
TFS 140K
1/5
1. Measurement condition :
Ambient temperature T_A:
Input power level:
Terminating impedances in fc :
45 °C
0 dBm
for input:
for output:
50 Ω  0 pF.
50 Ω  0 pF.
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 140K 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 nominal frequency f_N is fixed at 140 MHz. The centre frequency fc is the
arithmetic mean value of the upper and lower frequencies at the 6 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.
Data
typ. value
tolerance / limit
Insertion loss : (Reference level)
ae
28 dB
max. 31
dB
Nominal frequency at 45°C :
f_N
Centre frequency at 45°C * ):
f_CTA
Pass band :
PB
Amplitude ripple in PB (p-p) :
∆α
140 MHz
140 MHz
0,2 dB
140
MHz
140,000 ± 0,250 MHz
fN - 21 MHz ... fN + 21 MHz
max. 0,6 dB
Bandwidth at ambient temperature :
1 dB - band width
1 dB - band width
3 dB - band width
3 dB - band width
40 dB - band width
B_1dB
B_1dB
B_3dB
B_3dB
B_40dB
45,50
45,50
48,28
48,28
59,80
MHz
MHz
MHz
MHz
MHz
min. 45
max. 46
min. 48
max. 49
max. 60
MHz
MHz
MHz
MHz
MHz
Relative attenuation at ambient temperature : arel
f_N - 21 MHz .... f_N + 21 MHz
f_N ± 21 MHz .... f_N ± 22,5 MHz
f_N ± 23 MHz .... f_N ± 24,5 MHz
f_N ± 22,5 MHz .... f_N ± 24 MHz
f_N ± 24,5 MHz .... f_N ± 30 MHz
f_N - 130 MHz .... f_N - 30 MHz
f_N + 30 MHz .... f_N + 140 MHz
-
-
-
-
-
50 dB
40...45 dB
max. 0,6 dB
max. 1
dB
min. 1
dB
max. 3
dB
min. 3
dB
min. 40
dB
min. 36
dB
Group delay (mean value) in f_N ± 21 MHz τ_C
Group delay ripple (p-p) in f_N ± 21 MHz ∆τ_C
Phase ripple (p-p) in
f_N ± 21 MHz
∆ϕ
Reflected attenuation compared to main signal
Crosstalk attenuation compared to main signal
Triple transit attenuation compared to main signal
0,75 µs
8...12 ns
2,1°...2,8°
60 dB
55 dB
60 dB
max. 2
max. 4
min. 50
µs
degree
dB
Input power level
-
max. 15
dBm
Temperature coefficient of frequency :
Tcf
-72 ppm/K
Frequency deviation of fc over temperature: **)
∆fc(Hz) = Tcf (ppm/K) x (T - T_A) x f_CTA (MHz)
Operable temperature range :
OTR
- 40 °C ... + 85 °C
Storage temperature range :
STR
- 40 °C ... + 85 °C
*) fc(23°C) = 140,220 ±0,250 MHz.
**) f_CTA is reference frequency fc at ambient temperature (T_A = 45°C ).
Generated:
W. Dunzow
Checked/Approved:
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
E-Mail: [e-mail]
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