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參數(shù)資料
| 型號(hào)： | TFS245C |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 245.76 MHz, SAW FILTER |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 160K |
| 代理商： | TFS245C |
Filename: tfs 245c.doc
Version 1.1
08.11.2004
VI TELEFILTER
Filter specification
TFS 245C
1/5
Tele Filter 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.
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedance: *
Input:
530 || -2.4 pF
Output:
530 || -2.4 pF
External Coil:
270 nH
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 245C is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 245.76 MHz without any tolerance. The values of relative attenuation arel are guaranteed for the whole
operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
D a t a
typ. value
tolerance / limit
Insertion loss
ae
3.0
dB
max.
5
dB
(reference level)
-
Nominal frequency
fN
-
245,76 MHz
Passband
-
fN
± 89
kHz
Pass band ripple
0,5
dB
max.
1,5
dB
Relative attenuation
arel
fN
… fN ±
120
kHz
1,5
dB
max.
3
dB
fN ±
330
kHz
... fN ±
400
kHz
22
dB
min.
18
dB
fN ±
400
kHz
... fN ±
600
kHz
33
dB
min.
25
dB
fN ±
600
kHz
... fN ±
800
MHz
41
dB
min.
40
dB
fN ±
800
kHz
... fN ±
1,6
MHz
47
dB
min.
45
dB
fN ±
1,6
MHz ... fN ±
3,0
MHz
52
dB
min.
45
dB
fN ±
3,0
MHz ... fN ±
20
MHz
54
dB
min.
46
dB
fN ±
20
MHz ... fN ±
100
MHz
55
dB
min.
45
dB
Group delay ripple
fN ±
50
kHz
0,5
s
max.
1,2
s
fN ±
70
kHz
0,8
s
max.
1,5
s
fN ±
100
kHz
1,2
s
max.
2,5
s
Operating temperature range
OTR
-
- 25 °C ... + 85 °C
Storage temperature range
-
- 30 °C ... + 85 °C
Frequency inversion temperature
25
°C
-
Temperature coefficient of frequency
TCf **
-0,036
ppm/K
-
*) 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.
**)
f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz).
Generated:
Checked / Approved:
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PDF描述 |
|---|---|
| TFS246B | SAW FILTER |
| TFS246D | SAW FILTER |
| TFS246E | SAW FILTER |
| TFS246H | SAW FILTER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFS246B | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS246D | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:SAW filter specification |
| TFS246H | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:SAW filter specification |
| TFS246H_05 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS246H2 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:SAW filter specification |
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