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參數(shù)資料
| 型號(hào)： | TFS87 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | Filter specification |
| 中文描述： | 1 FUNCTIONS, 87.1 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 37K |
| 代理商： | TFS87 |
__________________________________________________________________________________
VI TELEFILTER
__________________________________________________________________________________
Filter specification
TFS 87
1/3
____________________________________________________________________________________________________________________________________________________________________________________________________________
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
____________________________________________________________________________________________________________________________________________________________________________________________________________
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
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
1. Measurement condition
Package, pin connection and 50
matching network.
see page 2.
Ambient temperature T
A
:
Input power level:
Terminating impedances at fc: for input:
23 °C
0 dBm (typ.)
Max 10 dBm.
256
- 22,5 pF.
703
- 11,8 pF.
for output:
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 87
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 reference frequency
fc
is the arithmetic mean value of the upper and lower
frequencies at the
20 dB
filter attenuation level relative to the insertion loss
ae
.
Data
typ. value
tolerance / limit
(Reference level)
Insertion loss
ae
22
dB
max 25
dB
at ambient temperature (
f
CAT
)
Reference frequency fc
87.10
MHz
87.10 ± 0.2
MHz
Relative frequency distance of f
CAT
within one set of 3 filters
1st filter with
f
CAT
= 65,9 MHz ± 200 kHz
*)
f
COT
= 75,3 MHz ± 200 kHz
2nd filter with
21200
11800
kHz
*)
kHz
max ± 20
max ± 20
kHz
kHz
1 dB - band width
3 dB - band width
20 dB - band width
_______40 dB - band width
2.35
2.47
2.77
2.93
MHz
MHz
MHz
MHz
Amplitude ripple (p-p):
fc ... fc ± 1.1 MHz
0.7
dB
max 1.0
dB
Relative attenuation
fc
fc ± 1.1
fc ± 1.5
In the frequency range fc ± 1,5 MHz ... fc ± 25 MHz the limit line is of type SLOPING LINE.
fc ± 25
MHz
MHz
fc ± 50
MHz
________fc ± 25
arel
fc ± 1.1
fc ± 1.2
MHz
MHz
-
-
dB
max 1
max 3
min 40
dB
dB
dB
MHz
MHz
42
65
70
dB
dB
min 50
dB
-
Group delay
4.87
μs
max 5.0
μs
Group delay ripple (p-p):
fc ... fc ± 1.2 MHz
± 80
ns
± max 150
ns
fc ... fc ± 1.0 (1.2) MHz
Deviation from linear phase (p-p):
2° (6°)
Triple transit attenuation compared to main signal
50
dB
Input/Output return loss with matching network (S11/S22):
4/4
dB
Crosstalk
60
dB
Substrate material
Quartz
Frequency inversion temperature ( T
o
)
____________________________________________________________________________________________________________________________________________________________________________________________________________
Temperature coefficient of frequency ( Tc
f
)
____________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________
Operating temperature range
Storage temperature range
5°
-0.0306
ppm/K2
f
(ppm/K) x (T - T
o
)2 x f
CAT
(MHz)
- 25 °C ... + 80 °C
- 40 °C ... + 85 °C
*)
For the
2nd
filter f
COT
is its reference frequency
f
C
at the operation temperature
OT
= 70 °C ± 1 °C. The reference frequency
at ambient temperature
f
CAT
for this 2nd filter and the from it resulting relative frequency distance have to be determined.
Generated: Weinberg
Checked/Approved: Dr. Bert Wall
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