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參數資料
| 型號： | TFS70H17 |
| 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, 70 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 54K |
| 代理商： | TFS70H17 |
File name: Tfs70H17.doc
VI TELEFILTER
Version 1.0
TFS 70H17
20.02.2002
1/5
Filter specification
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances in fc:
2. Characteristics :
Remark:
Reference level for the relative attenuation
arel
of the
TFS 70H17
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.
The temperature coefficient of frequency
Tc
is valid both for the reference frequency
fc
and the frequency response of the filter in the operating temperature range. The frequency
shift of the filter in the operating temperature range is not included in the production tolerance scheme.
Data
25
0
for input:
for output:
°C.
dBm.
50
0 pF.
50
0 pF.
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
25,5 dB
max.
26
dB
Centre frequency
fc
at ambient temperature
(f
CTA
)
70,0 MHz
70,0 ±
0,10 MHz
Pass band ( PB ) :
fc ... fc ± 5,0 MHz
max.
Amplitude ripple in :
fc - 4,5 MHz ... fc + 4,5 MHz
0,7 dB
1
dB
Bandwidth ( BW ) :
1
dB
3
dB
at ambient temperature T
A
9,99 MHz
10,35 MHz
min.
min.
9,0 MHz
10,0 MHz
20
40
50
dB
dB
dB
11,31 MHz
11,78 MHz
11,93 MHz
max.
MHz
12
Relative attenuation
fc ± 4,5 MHz ... fc ± 5,0 MHz
fc ± 6
MHz ... fc ± 7
fc ± 7
MHz ... fc ± 14
fc ±14
MHz ... fc ± 30
arel
fc ... fc ± 4,5 MHz
-
-
max.
max.
1
3
dB
dB
MHz
MHz
MHz
50
55
58
dB
dB
dB
min.
min.
min.
40
48
50
dB
dB
dB
Group delay ( mean value in PB ):
2,09
Group delay ripple in PB (p-p):
Deviation from linear phase in PB :
2,2 μs
max.
max.
max.
2,5 μs
70
4 ° p-p
50...65
3,3 ° (r.m.s. 0,7 °)
ns
ns
Triple transit attenuation compared to main signal
Crosstalk
60
dB
dB
70...75
Temperature coefficient of frequency ( Tc
f
) :
Frequency deviation of fc over temperature :
Operating temperature range
Storage temperature range
-87
ppm/K
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
) x f
CTA
(MHz)
- 25 °C ... + 80 °C
- 40 °C ... + 85 °C
Generated:
Checked/Approved:
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / 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
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