TFS140P Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

File name: Tfs140P.doc
VI TELEFILTER
Filter specification
version 1.3
02.12.2002
TFS 140 P
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
45 °C
0 dBm
Terminating impedances in fc :
for input:
50
for output:
50
0 pF.
0 pF.
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 140 P 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 Tcf 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
25,8 dB
max. 27
dB
Centre frequency at ambient temperature TA = 45 °C :
fc
Centre frequency at room temperature TA = 23 °C :
fc
Pass band : ( see theoretical ¹⁾ frequency response)
PB
Pass band tilt :
140,00 MHz
140 ± 0,15 MHz
140,22 MHz
fC – 9,922 MHz ... fC + 9,922 MHz
0,0 dB/MHz
max. 0,01 dB/MHz
Deviation from theoretical frequency response at ambient temperature TA = 45 °C ¹⁾ (p-p) :
fC - (1-a) fY ... fC + (1-a) fY or [ fC – 9,922 MHz ... fC + 9,922 MHz ]
± 0,17 dB
fC - fY ... fC + fY
or [ fC + 12,100 MHz ... fC + 12,100 MHz ] ± 0,3 dB
± max. 0,2 dB
± max. 0,5 dB
Relative attenuation at ambient temperature : arel
fC ± 15 MHz .... fC ± 120 MHz
Group delay ( mean value in PB ):
C
Group delay ripple in PB (p-p):
Deviation from linear phase in PB :
60...45
1,3
20
± 1,5
µs
ns
degree
min. 40
dB
-
-
± max. 2
°
Reflected attenuation compared to main signal
Crosstalk attenuation compared to main signal
60
dB
52
dB
min. 45
dB
min. 45
dB
Nyquist frequency
Roll-off factor
Partitioning factor
fY
12,10 MHz
a
0,18
p
0,5
Input power level
-
max. 15
dBm
Temperature coefficient of frequency :
Tcf
Frequency deviation of fc over temperature :
Operating temperature :
Operable temperature range :
Storage temperature range :
- 72 ppm / K
fc(Hz) = Tcf(ppm/K) x (T - TA) x fC (MHz)
+ 45 °C
-
- 40 °C ... + 85 °C
-
- 40 °C ... + 85 °C
1) _{Theoretical frequency response :}
H ( x ) ( S ( x )) ^p ;
1
where x ^{f f C}
f_Y
,
for
x (1 a )
S (x)
1 1 _cos
22
( x 1 a)
, for (1 a ) x (1 a ),
2a
0
for (1 a ) x
Generated:
Checked/Approved:
W. Dunzow
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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