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參數資料
| 型號： | TFS70H14 |
| 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： | 52K |
| 代理商： | TFS70H14 |
tfs70H14.doc
VI TELEFILTER
Version 1.1
TFS 70H14
16.04.2002
1/5
Filter specification
Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances in fc:
Characteristics :
Remark:
Reference level for the relative attenuation
arel
of the
TFS 70H14
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
max. 25
dB
Centre frequency
at ambient temperature
(f
CTA
)
fc
70,0
MHz
70,0 ± 0,1
MHz
Pass band :
PB
fc .. fc ± 3,85
MHz
Amplitude ripple in PB :
max.
0,8
dB
Bandwidth
at ambient temperature T
A
:
BW
1
3
dB - band width
dB - band width
MHz
min.
min.
8,0
8,5
MHz
MHz
8,9
40
dB - band width
10,9
MHz
max. 11,1
MHz
Relative attenuation
arel
max.
max.
fc
fc ±
fc ±
..... fc ±
MHz ..... fc ±
MHz ..... fc ±
4,0
4,25
MHz
MHz
-
-
1
3
dB
dB
4,0
5,55
20
MHz
45
dB
min.
40
dB
Group delay ( mean value in PB ):
1,8
μs
max.
2,5
μs
Group delay ripple in PB (p-p):
33
ns
max. 100
ns
Deviation from linear phase in PB :
0,6
°
max.
5
°
Temperature coefficient of frequency ( Tc
f
) :
-87
ppm/K2
Frequency deviation of fc over temperature :
Operating temperature range
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
) x f
CTA
(MHz)
- 25 °C ... + 80 °C
Storage temperature range
- 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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