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參數(shù)資料
| 型號(hào)： | TFS70R |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 70 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 31K |
| 代理商： | TFS70R |
tfs70R.doc
Version 1.2
06.01.02
VI TELEFILTER
Filter Specification
TFS 70 R
1/3
VI TELEFILTER
Vectron International, Inc.
Potsdamer Strae 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: tft@telefilter.com
E-Mail: vti@vtinh.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.
1. Measurement condition
Ambient temperature TA:
23 °C
Input power level:
0
dBm.
Terminating impedances in fc:
for input:
72,35
- 38,29 pF.
for output:
72,35
- 38,29 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 70R 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 40 dB filter attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tcf 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
24
dB
max 25
dB
Reference frequency fc at ambient temperature (fCAT)
70
MHz
70 ± 0,1
MHz
Pass band ( PB ) :
fC - 7,1 MHz ... fC + 7,1 MHz
Bandwidth at ambient temperature:
1,0 dB - band width
14,52
MHz
min. 14,2
MHz
3,0 dB - band width
14,70
MHz
min. 14,6
MHz
20 dB - band width
15,17
MHz
40 dB - band width
15,37
MHz
max. 15,4
MHz
45 dB - band width
15,40
MHz
50 dB - band width
15,42
MHz
Amplitude ripple in pass band (p-p) :
0,7
dB
max 1
dB
Relative attenuation
fc
... fc ± 7,1
MHz
0,7
dB
max. 1
dB
fc ± 7,1
MHz
... fc ± 7,3
MHz
-
max. 3
dB
fc ± 7,7
MHz
... fc ± 8,3
MHz
45
dB
min. 40
dB
fc ± 8,3
MHz
... fc ± 35
MHz
50...55
dB
min. 45
dB
fc - 65
MHz
... fc - 35
MHz
75...60
dB
min. 55
dB
fc + 35
MHz
... fc + 40
MHz *)
56...60
dB
min. 50...55
dB
fc + 40
MHz
... fc + 50
MHz
60...65
dB
min. 55
dB
fc + 50
MHz
... fc + 65
MHz
56...60
dB
min. 52
dB
Average group delay in PB :
3,70
s
max 4,2
s
Group delay ripple in PB (p-p) :
135
ns
max 200
ns
Deviation from linear phase in PB :
7,6° p-p...(2° r.m.s.)
Triple transit attenuation compared to main signal
56
dB
Crosstalk
57...63
dB
Temperature coefficient of frequency ( Tcf )
-87
ppm/K
-94
ppm/K
Frequency deviation of fc over temperature
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
Operating temperature range
- 25 °C ... + 85 °C
Storage temperature range
- 25 °C ... + 85 °C
*) in this frequency range the limit line is of type SLOPING LINE
Generated:
Wadim P. Dunzow
Checked/Approved:
Dr. Bert Wall
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