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VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Measurement Condition
Ambient temperature:
Input power level:
Terminating impedances
for input:
for output
23
°
C
0 dBm
595
// -0.8 pF single ended
2100
// -0.5 pF balanced driven
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 315 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 fo is the arithmetic mean value of the upper and lower
frequencies at the 15 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 315 MHz without tolerance. The
given values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also if the centre
frequency fo is shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for
the centre frequency fo.
D a t a
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Insertion Loss
ae = amin
(Reference level)
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Nominal Frequency
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Centre Frequency
315
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1 dB - Band Width
160
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Relative Attenuation
arel
typ. Value
Variation/ Limitation
4,6
dB
max. 7
dB
-
315
MHz
Mhz
-
kHz
min. 25
kHz
f
N
±200
f
N
± 600
f
N
±
f
±
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Group Delay Distortion
f
± 25 kHz
GDD
___________________________________________________________________________________max. 7
Temperature Coefficient of Frequency
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Frequency Inversion Temperature
+ 25
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Operating Temperature Range
- 20°C ... + 70°C
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Storage Temperature Range
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kHz... f
N
± 600
kHz... f
N
±
N
MHz...f
±
kHz
MHz
MHz
22
50
63
dB
dB
dB
min. 15
min. 45
min. 55
dB
dB
dB
1,6
3,4
1,6
TBD
μ
s
- 0,036 ppm/K
2
-
°C
-
- 50°C ... + 80°C
Generated:
Checked / approved: