TFS140L Datasheet, PDF (1/5 Pages) Vectron International, Inc – Preliminary specification

File name: Tfs140L.doc
VI TELEFILTER
Preliminary specification
version 1.2
28.06.2002
TFS 140 L
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 L 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
28,8 dB
max. 31
dB
Centre frequency at ambient temperature : fc
Centre frequency at room temperature T = 23°C :
Pass band : ( see theoretical ¹⁾ frequency response)
PB
Pass band tilt in : fC _... fC ± 9,992 MHz
Deviation from theoretical frequency response ¹⁾ (p-p) :
fC _... fC ± fY (1-a)
or fC _... fC ± 9,992 MHz
fC ± fY (1-a) _... fC ± fY or fC ± 9,992 MHz _... fC ± 12,1 MHz
140,0 MHz
140,230 MHz
0,02 dB/MHz
± 0,15 dB
± 0,25 dB
140,00 ± 0,25 MHz
140,23 ± 0,25 MHz
± max. 0,2 dB
± max. 0,5 dB
Deviation from theoretical phase response ²⁾ (p-p):
fC _.... fC ± fY
or fC _... fC ± 12,1 MHz
± 1°
± max. 2
degree
Relative attenuation at ambient temperature : arel
fC ± 15 MHz .... fC ± 120 MHz
Group delay at fc
C
Reflected attenuation compared to main signal
Crosstalk attenuation compared to main signal
55
dB
1,5 µs
55
dB
60
dB
min. 40
dB
min. 45
dB
min. 45
dB
Nyquist frequency
Roll-off factor
Partitioning factor
Phase coefficients :
Input power level
p3 = 0,4388
p9 = - 0,1531
fY
a
p
p5 = 0,6160
p11 = 0,2762
-
12,10 MHz
0,18
0,5
p7 = - 0,2765
p13 = - 0,07817
max. 15
dBm
Temperature coefficient of frequency :
Tcf
Frequency deviation of fc over temperature :
Operating temperature range ( OgTR ) :
Operable temperature range ( OTR ) :
Storage temperature range ( STR ) :
- 75
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 :}
2) _{Theoretical phase response :}
Ph ( y ) [ p ₃ y ³ p ₅ y ⁵ p ₇ y ⁷
H (x)
S (x)
p₉ y⁹
( S ( x )) ^p ;
1
where x ^{f f C}
f_Y
,
for
x (1 a )
1 1 _cos
22
( x 1 a)
, for (1 a ) x (1 a ),
2a
0
p₁₁ y ¹¹
for (1 a ) x
p₁₃ y ¹³ ]( ¹⁸⁰ ) [deg] , where y
f f _{C [ MHz ]}
10
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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