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參數資料
| 型號： | TFS70H12A |
| 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： | 1/4頁 |
| 文件大小： | 35K |
| 代理商： | TFS70H12A |
tfs70H12A.doc
VI TELEFILTER
Version 1.0
25.07.2000
Filter Specification
TFS 70H12A - 1/4
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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:
25
0
for input:
for output:
°C.
dBm.
50
0 pF.
50
0 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 70H12A
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
20 dB
filter attenuation level relative to the insertion loss
ae.
The temperature coefficient of frequency
Tc
f
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
21 dB
max.
23 dB
Centre frequency
fc
at ambient temperature
(f
CTA
)
70,0 MHz
70 ± 0,08
MHz
Pass band ( PB ) :
fc - 4,0 MHz ... fc + 4,0 MHz
max. 0,8 dB
Amplitude ripple in :
fc - 3,6 MHz ... fc + 3,6 MHz
0,4 dB
Bandwidth ( BW ) :
at ambient temperature T
A
0,8 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
50 dB - band width
7,45 MHz
8,05 MHz
9,26 MHz
9,88 MHz
10,11 MHz
min.
min.
7,2 MHz
8,0 MHz
max. 10,0 MHz
Relative attenuation
arel
fc ..... fc ± 3,6
MHz ..... fc ± 4,0
MHz ..... fc ± 5,05 MHz
fc ± 5,05 MHz ..... fc ± 50
fc - 68
MHz ..... fc - 50
fc + 50
MHz ..... fc + 90
fc + 90
MHz ..... fc + 145
fc + 145
MHz ..... fc + 155
fc + 155
MHz ..... fc + 210
MHz
MHz
-
-
max. 0,8 dB
max.
min.
min.
fc ± 3,6
fc ± 5,0
3 dB
40 dB
45 dB
45 dB
MHz
MHz
MHz
MHz
MHz
MHz
55...60 dB
45...50 dB
45...55 dB
55...58 dB
25 dB
55...60 dB
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB :
2,43 μs
70...80 ns
3,3 ° (r.m.s. 0,8 °)
max. 2,5 μs
max. 100 ns
max.
4 °
Triple transit attenuation compared to main signal
Crosstalk
50...52 dB
70...75 dB
Temperature coefficient of frequency ( Tc
f
) :
Frequency deviation of fc over temperature :
-87 ppm/K2
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
) x f
CTA
(MHz)
Operating temperature range
- 25 °C ... + 80 °C
Storage temperature range
- 40 °C ... + 85 °C
Generated: Wadim Dunzow
Checked/Approved: Dr. Bert Wall
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