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TFS71D Datasheet, PDF (1/3 Pages) Vectron International, Inc – Specification
TFS71D
09/97
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VI TELEFILTER
Specification
TFS 71 D - Page 1/3
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1. Measurement Condition
Ambient temperature TA:
Input power level:
Source impedance:
Load impedance:
23 °C
0 dBm
50 Ω (refer to page 2)
50 Ω (refer to page 2)
2. Construction and Pin Configuration
see page 2
3. Characteristics
Remark:
Reference level for the relative attenuation arel and the band width BW of the TFS 71 D 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 center frequency fo
is the arithmetic mean value of the upper and lower frequencies at the 1,5 dB filter attenuation level relative to the insertion loss
ae.
Description
typ. value
Variation / Limitation
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Insertion Loss
ae
5,4 dB
max 8
dB
(Reference Level)
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Center Frequency
fo
-
71,0 MHz
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1 dB - Band Width
195 kHz
min ± 65
kHz
1,5 dB - Band Width
235 kHz
min ± 82,5 kHz
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Relative Attenuation
arel
fo ± 200 kHz ... fo ± 400 kHz
-
min 4
dB
fo ± 400 kHz ... fo ± 600 kHz
-
min 20
dB
fo ± 600 kHz ... fo ± 800 kHz
-
min 25
dB
fo ± 800 kHz ... fo ± 1,6 MHz
-
min 27
dB
fo ± 1,6 MHz ... fo ± 10 MHz
-
min 35
dB
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Group Delay
GD
2,15 µs
-
Group Delay Ripple fo ± 80 kHz
200 ns
max 400
ns
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Terminating Impedances
Input
832 Ω // -15,1 pF
Output
1055 Ω // -11,6 pF
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Temperature Coefficient
TC 1st order
0 ppm/K
-
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Operating Temperature Range
- 25 °C ... + 85 °C
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DC - Voltage
Vdc *)
-
max 12
V
AC - Voltage
Vac *)
-
max 10
V
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*) Between any pins
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VI TELEFILTER / Potsdamer Straße 18 / D - 14 513 TELTOW
Tel: +49 3328 4784-52 / Fax: +49 3328 4784-30 / E-Mail: tft@tft.telco-tech.de