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參數資料
| 型號： | TFS300D |
| 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, 300.087 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 82K |
| 代理商： | TFS300D |
Tfs300D.doc
VI
TELEFILTER
version 1.3
TFS 300 D
25.08.2003
1
/5
Filter specification
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances at fc *) :
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 300D
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 centre 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 nominal frequency
fN
is fixed at
300 MHz
without tolerance.
The given values for the relative attenuation
arel
and for the group delay ripple have to be reached at the frequencies given below even if the
centre frequency
fc
is shifted due to the temperature coefficient of frequency
TCf
in the operating temperature range and due to a production
tolerance for the centre frequency
fc
.
Data
23
0
for input:
for output:
°C
dBm
29,5
- 16,1 pF
206
- 9,0 pF
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
20,2
dB
max. 21
dB
Nominal frequency
fN
-
300
MHz
Centre frequency
at ambient temperature
(f
CTA
)
300,087 MHz
-
Centre frequency
fc
at temperature T = 37,5°
300,000 MHz
-
Pass band in OTR :
PB
f
N
... f
N
± 9,42 MHz
Amplitude ripple in PB (p-p) :
0,4
dB
max.
1
dB
Bandwidth at T
C
= 37,5 °C :
1
dB
19,6
MHz
min.
18,84
MHz
15
5
dB
dB
20,4
21,0
MHz
MHz
max. 21,70
max. 22,24
MHz
MHz
Relative attenuation in in OTR
arel
fN
... fN ±
9,42
MHz
0,4
dB
max.
1
dB
fN ± 10,58
fN
Group delay ( mean value in PB ):
Group delay ripple (p-p) in PB :
Triple transit attenuation compared to main signal
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature: ** )
MHz ... fN ±
MHz ... fN ±
11,12
40
MHz
MHz
15
23
dB
dB
min.
min.
5
dB
dB
15
1,28
60
42
- 20
μs
ns
dB
ppm/K
max.
max. 100
max. 34
1,5
μs
ns
dB
- 17,8
-
ppm/K
fc(Hz) = Tc
f
(ppm/K) x (T - T
CTA
) x
f
CTA
(MHz)
Operating temperature range
Storage temperature range
OTR
-
-
+ 10 °C ... + 65 °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:
TELEFILTER GmbH
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.
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