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參數資料
| 型號： | TFS70F1 |
| 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： | 40K |
| 代理商： | TFS70F1 |
tfs70f1.doc
VI TELEFILTER
Version 2.4
TFS 70 F1
09.04.2001
1/5
Filter Specification
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
Email:
vti@vtinh.com
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances at fc:
25 °C
0
for input:
for output:
dBm.
56
-30 pF.
56
-30 pF.
2. Characteristics :
Remark:
Reference level for the relative attenuation
arel
of the
TFD 70F1
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
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
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
22,5
dB
max.
25
dB
Reference frequency fc
at ambient temperature (
f
CTA
)
70
MHz
70 ± 0,10MHz
Pass band ( PB )
at ambient temperature T
A
:
f
C
- 6,1 MHz .... f
C
+ 6,1 MHz
Amplitude ripple in PB (p-p):
0,5
dB
max. 1,0dB
Bandwidth
at ambient temperature
:
1 dB - band width
3 dB - band width
12,24
12,45
MHz
MHz
min.
min.
12,2
12,4
MHz
MHz
40 dB - band width
45 dB - band width
50 dB - band width
13,23
13,30
13,32
MHz
MHz
MHz
max.
13,3
MHz
Relative attenuation
arel
MHz
MHz
fc ..... fc ± 6,1
MHz
fc ± 6,2
fc ± 6,8
MHz
fc ± 7,2
MHz
fc ± 8
MHz
fc ± 10,2 MHz
fc ± 10,2 MHz
fc ± 18,2 MHz
-
-
max.
max.
1
3
dB
dB
fc ± 6,1
fc ± 6,65 MHz
fc ± 6,8
fc ± 7,2
fc ± 8
MHz*)
MHz*)
MHz
45
48
52
55
45
45
dB
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
min.
40
45
48
50
40
40
dB
dB
dB
dB
dB
dB
fc ± 18,2 MHz*)
fc ± 35
MHz
Group delay ( mean value in PB )
Group delay ripple (p-p):
Deviation from linear phase (p-p):
fc ... fc ± 6 MHz
4,1
μs
ns
(p-p)
max.
max. 200
4,5
μs
ns
fc ... fc ± 6 MHz
100
7,5°
Triple transit attenuation compared to main signal
Input/Output return loss with matching network (S11/S22):
Crosstalk
52
4 / 3,5
65
dB
dB
dB
Substrate material
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature
Operating temperature range
Storage temperature range
LiNbO
3
-86
ppm/K
-94
ppm/K
fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CTA
(MHz)
- 25 °C ... + 80 °C
- 40 °C ... + 85 °C
*) in this frequency range the limit line is of type SLOPING LINE
Generated: Dunzow W.P.
Checked/Approved: Dr. Bert Wall
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