TFS140AF Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 140af.doc
VI TELEFILTER
Version 1.2
Filter specification
TFS 140AF
08.04.2005
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
Input:
Output:
23
°C
0
dBm
50
Ω
50
Ω
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 140AF 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 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 for both the reference frequency fc and the
frequency response of the filter in the operating temperature range.
Data
typ. value
tolerance / limit
Insertion loss
ae
(reference level)
Centre frequency at operating
f_C
temperature
28,5 dB
-
max.
30 dB
140 ± 0,25 MHz
Passband
f_C ± f_Y * (1-a)
PB
Pass band tilt within PB
Relative attenuation
arel
20 MHz … 119 MHz
161 MHz … 280 MHz
Reflected attenuation compared to main signal
Crosstalk attenuation compared to main signal
Deviation from theoretical phase response
∆ϕ
Deviation from theoretical frequency response ∆α
f_C
… f_C ± f_Y * (1-a)
f_C ± f_Y * (1-a) … f_C ± f_Y * (1+a)
Nyquist frequency
f_y
Roll-off factor
a
Partitioning factor
p
Group delay
at f_c
Group delay ripple within PB
Input power level
Operating temperature range
Operable temperature range
Storage temperature range
Temperature coefficient of frequency
**) ∆fc(Hz) = Tc_f(ppm/K) x (T - T_o) x f_CAT (MHz).
OTR
TCf **
0,004 dB/MHz
52
dB
47
dB
66
dB
55
dB
1,1 deg
± 0,1
± 0,25
-
-
-
1,1
10
-
-
-
-
-72
dB
dB
µs
ns
ppm/K
max.
27,2 MHz
0,012 dB/MHz
min.
min.
min.
min.
max.
40 dB
40 dB
50 dB
50 dB
4,0 deg
max.
max.
± 0,2
± 0,5
17
0,2
1,0
dB
dB
MHz
max.
25 ns
max.
15 dBm
+ 45 °C
- 45 °C ... + 85°C
- 45 °C ... + 85°C
Theoretical frequency response :
Generated:
⎧
⎪
H
(x)
=
(S
( x ))
P
;
⎪
where
x = ^{f − fC}
f_Y
⎪
⎪
⎨
⎪
⎪
S
⎪
⎪⎩
( x)
=
⎧1
⎪
⎪1
⎨
⎪
2
⋅
⎜⎛
⎜⎝
1
+
⎪
⎩
0
cos
⎜⎜⎝⎛
,
π
(
x −1+
2a
a)
⎟⎟⎠⎞
⎟⎞
⎟⎠
,
for
x ≤ (1 − a )
for (1 − a ) ≤ x ≤ (1 + a ),
for (1 + a ) ≤ x
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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