tfs246kc Vectron International, Inc., tfs246kc Datasheet

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tfs246kc

Manufacturer Part Number
tfs246kc
Description
Vi Telefilter Filter
Manufacturer
Vectron International, Inc.
Datasheet
tfs246kc.Doc
_________________________________________________________________________________________________________
VI TELEFILTER
_________________________________________________________________________________________________________
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
Construction and pin connection
see page 2
Characteristics
Remark:
Reference level for the relative attenuation a rel of the TFS 246 KC is the minimum of the pass band attenuation a min . The minimum of the pass band
attenuation a min is defined as the insertion loss a e . The centre frequency f o is the arithmetic mean value of the upper and lower frequencies at the 3 dB
filter attenuation level relative to the insertion loss a e . The nominal frequency f N is fixed on 246 MHz without tolerance. The given values for the relative
attenuation a rel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency f o is shifted due to the
temperature coefficient of frequency TC f in the operating temperature range and due to a production tolerance for the centre frequency f o .
P r e l i m i n a r y D a t a
_________________________________________________________________________________________________________
Insertion loss
(Reference level)
_________________________________________________________________________________________________________
Center frequency
Norminal frequency
_________________________________________________________________________________________________________
Relative attenuation
246,0 MHz ± 80
246,0 MHz ± 200
246,0 MHz ± 400
246,0 MHz ± 600
246,0 MHz ±
246,0 MHz ±
_________________________________________________________________________________________________________
Group delay distortion
246,0 MHz ± 50
246,0 MHz ± 75
_________________________________________________________________________________________________________
Operating temperature range
_________________________________________________________________________________________________________
Temperature coefficient of frequency
_________________________________________________________________________________________________________
Frequency inversion temperature
_________________________________________________________________________________________________________
generated:
checked / approved:
______________________________________________________________________________________________________
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.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.
1,6 MHz ... 246,0 MHz ±
3
kHz
kHz ... 246,0 MHz ± 400
kHz ... 246,0 MHz ± 600
kHz ... 246,0 MHz ±
MHz ... 246,0 MHz ± 25
kHz
kHz
23
a e = a min
f o
f N
a rel
GDD
450
0 dBm
C
-3.4 pF
TC
3
1,6 kHz
Filter specification
kHz
kHz
MHz
MHz
typ. value
246
12
30
35
50
55
6
0,7
1,1
-
dB
MHz
s
s
- 20 C ... + 85 C
+ 20 ... + 30
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
ca. - 0,036
version 1.1
TFS 246 KC
ppm/K²
C
min
max 7
max 3
min 25
min 31
min 41
min 50
max 1,2
max 2,5
246
limit
5
-
dB
MHz
dB
dB
dB
dB
dB
dB
s
s
1/4
01/99

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tfs246kc Summary of contents

Page 1

... VI TELEFILTER _________________________________________________________________________________________________________ Measurement condition Ambient temperature Input power level: 0 dBm Terminating impedance: 450 -3.4 pF Construction and pin connection see page 2 Characteristics Remark: Reference level for the relative attenuation a rel of the TFS 246 KC is the minimum of the pass band attenuation a min . The minimum of the pass band attenuation a min is defined as the insertion loss a e ...

Page 2

... VI TELEFILTER _________________________________________________________________________________________________________ Construction, pin connection and 50 matching network S246KC tft test circuit (balanced) C1 LB- test circuit (unbalanced) L3 ______________________________________________________________________________________________________ VI TELEFILTER Potsdamer Straß 513 TELTOW / Germany Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30 E-Mail: tft@telefilter.com VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice ...

Page 3

... VI TELEFILTER _________________________________________________________________________________________________________ Stability characteristics After the following tests the filter shall meet the whole specification: 1. Shock: 30g, 18 ms, half sine wave, 3 shocks each plane; DIN IEC Vibration 150 Hz, 0.35 mm amplitude, 5g; 2 hours for 3 planes; DIN IEC Damp heat rel. humidity, 40 ° ...

Page 4

... VI TELEFILTER _________________________________________________________________________________________________________ Air reflow temperature conditions 1st and 2nd air reflow profile Name: pre-heating periods Temperature: 150 °C - 170 °C Time: 60 sec sec. 260 240 220 200 180 160 140 120 100 Table for temperature vs. time during the air reflow process time / sec. temperature / ° ...

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