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參數(shù)資料
| 型號： | TFS400B |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | SAW Filter Specification |
| 中文描述： | 1 FUNCTIONS, 400 MHz, SAW FILTER |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 53K |
| 代理商： | TFS400B |
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
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
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
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.
Application
The filter is suitable for GSM, DCS 1800 and dual band receivers. It can especially be used in the first IF in which full channel
selectivity is not necessary. Due to the high frequency the filter is small, thus it saves cost and space on the printed circuit
board. As it has symmetrical input and output it does not need any transformation networks in state of the art IC transceiver
concepts in which symmetrical inputs and outputs are favourable.
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances
23
°
C
10 dBm
for input:
for output:
ext.coil:
580 ohms || -0.72
580 ohms || -0.72
47 nH
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 400 B 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 fo 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 on 400 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 fo 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 fo.
D e v e l o p m e n t D a t a
______________________________________________________________________________________________________
Insertion loss
ae = amin
(Reference level)
______________________________________________________________________________________________________
Nominal frequency
______________________________________________________________________________________________________
Usable signal bandwidth
______________________________________________________________________________________________________
3 dB bandwidth
BW
______________________________________________________________________________________________________
Relative attenuation
arel
fN ± 400 kHz ... fN ± 600 kHz
fN ± 600 kHz ... fN ±
1 MHz
1 MHz ...fN ±
13 MHz
fN ±
Group delay ripple
GD
70 kHz
fN ±
Operating temperature range
__________________________________________________________________________________________
Temperature coefficient of frequency
TC
__________________________________________________________________________________________
Frequency inversion temperature
______________________________________________________________________________________________________
typ. value
tolerance/limit
-
max.
6,5
dB
-
400,000 MHz
-
min.
140
kHz
350
kHz
-
-
-
min. 15
min. 27
min. 35
dB
dB
dB
-
max.
2
μ
s
- 20
°
C ... + 70
°
C
ca. - 0.036 ppm/K2
+ 20
°
C
Generated:
Checked / approved:
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|---|---|
| TFS400C1 | VI SAW濾波器(VI SAW Filter) |
| TFS400C2 | SAW Filter Specification |
| TFS400D | Filter Specification |
| TFS400G | Filter Specification |
| TFS400H | Filter Specification |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TFS400C | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:SAW Filter Specification |
| TFS400C2 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:SAW Filter Specification |
| TFS400D | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS400F | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS400G | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
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