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參數(shù)資料
| 型號(hào)： | TFS457 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類(lèi)： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 457.5 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 202K |
| 代理商： | TFS457 |
Filename: tfs 457.doc
Version 1.3
03.05.2004
VI TELEFILTER
Filter specification
TFS 457
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:
165 || -0,3 pF
Output:
165 || -0,3 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 457 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 2dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 457,5 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 also 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.
D a t a
typ. value
tolerance / limit
Insertion loss
ae = amin
2,7
dB
max.
3,0
dB
(reference level)
-
Nominal frequency
fN
-
457,5
MHz
Centre frequency
fC
457,5
MHz
-
Passband
-
f
N ±
12
MHz
Pass band ripple
1,2 **
dB
max.
3,0** dB
Relative attenuation
arel
f
N
-
80,0
MHz … f
N
-
100,0
MHz
62
dB
min.
50
dB
f
N
-
35,0
MHz … f
N
-
55,0
MHz
50
dB
min.
30
dB
f
N
+
25,0
MHz … f
N
+
57,5
MHz
24
dB
min.
20
dB
f
N
+
57,5
MHz … f
N
+
82,5
MHz
55
dB
min.
40
dB
f
N
+
127,5
MHz … f
N
+
152,5
MHz
68
dB
min.
57
dB
Intermodulation
IP3
***
-
min.
20,0
dBm
Input power level
-
max.
10
dBm
Permissible DC voltage
-
max.
12
V
Operating temperature range
OTR
-
- 25 °C ... + 75°C
Storage temperature range
-
- 40 °C ... + 85°C
Temperature coefficient of frequency
TCf ****
- 72
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.
**) 1,5 dB over
fN ± 10 MHz at ambiente temperature (23 °C).
***) modulation signals:
fN + 1 MHz and fN + 2 MHz, each of 10 dBm
****)
f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz).
Generated:
Checked / Approved:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TFS459 | SAW FILTER |
| TFS45A | SAW FILTER |
| TFS460B | SAW FILTER |
| TFS462A | 1 FUNCTIONS, 462.5 MHz, SAW FILTER |
| TFS462B | 1 FUNCTIONS, 462.5 MHz, SAW FILTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFS458 | 制造商:VECTRON 制造商全稱(chēng):Vectron International, Inc 功能描述:Filter Specification |
| TFS45A | 制造商:VECTRON 制造商全稱(chēng):Vectron International, Inc 功能描述:Filter Specification |
| TFS45C | 制造商:VECTRON 制造商全稱(chēng):Vectron International, Inc 功能描述:Filter specification |
| TFS460 | 制造商:VECTRON 制造商全稱(chēng):Vectron International, Inc 功能描述:Filter specification |
| TFS460B | 制造商:VECTRON 制造商全稱(chēng):Vectron International, Inc 功能描述:SAW filter specification |
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