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參數(shù)資料
| 型號： | TFS70L14 |
| 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(shù)： | 1/5頁 |
| 文件大小： | 65K |
| 代理商： | TFS70L14 |
Tfs70L14.doc
VI
TELEFILTER
version 1.1
11.09.2001
Filter Specification
TFS 70L14
1/5
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
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 70L14
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 frequence
fc
is the arithmetic mean value of the upper and lower
frequencies at the
3 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 °C
0 dBm
for input:
for output:
100
- 15,914 pF.
131
- 15,275 pF.
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
11 dB
max.
12,5 dB
Centre frequency
fc
at ambient temperature
(f
CTA
)
70
MHz
70,0 ± 0,10
MHz
Pass band ( PB ) :
f
C
- 6,5 MHz ... f
C
+ 6,5 MHz
Amplitude ripple in PB (p-p) :
0,4
dB
max.
1
dB
Bandwidth
at ambient temperature T
A
:
1 dB - band width
3 dB - band width
13,35
14,50
MHz
MHz
min.
min.
13,0 MHz
14,0 MHz
Relative attenuation
arel
dB
dB
max.
max.
min.
min.
dB
dB
dB
dB
fc ± 6,5
fc - 20
fc + 10,35
fc ... fc ±
MHz ... fc ±
MHz ... fc -
MHz ... fc + 20
6,5
7,0
9,65
MHz
MHz
MHz
MHz
-
-
1
3
43...45
43...45
40
40
Group delay ( mean value in PB ):
Group delay ripple (p-p) in 90% of 3dB Bandwidth :
Deviation from linear phase (p-p) in 90% of 3dB Bandwidth :
1,1
65
6,5
μs
ns
degree
max.
max.
max.
1,5 μs
90
11
ns
degree
Triple transit attenuation compared to main signal
Crosstalk attenuation compared to main signal
-
-
dB
dB
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature
Operating temperature range ( O.T.R. )
Storage temperature range
- 87
ppm/K
-94
ppm/K
fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CTA
(MHz)
- 20 °C ... + 70 °C
- 40 °C ... + 85 °C
*)
The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
Generated:
Checked/Approved:
Dunzow W.
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