参数资料
型号: TFS380K
厂商: VECTRON INTERNATIONAL
元件分类: 声表面波滤波器
英文描述: 1 FUNCTIONS, 380 MHz, SAW FILTER
文件页数: 1/5页
文件大小: 115K
代理商: TFS380K
Filename: tfs 380k.doc
Version 1.1
21.09.2004
VI TELEFILTER
Filter specification
TFS 380K
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:
420 || -3,9 pF
Output:
490 || -3,5 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 380K 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 380 MHz without any tolerance. The given values for both the
relative attenuation arel and the group delay ripple have to be achieved 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.
D a t a
typ. value
tolerance / limit
Insertion loss
ae
10
dB
max.
15
dB
(reference level)
-
Nominal frequency
fN
-
380,0
MHz
Centre frequency
fC
380,05
MHz
-
Passband
PB
-
fN
± 2,0625 MHz
Relative attenuation
arel
fN
... fN ±
2,0625 MHz
0,5
dB
max.
1
dB
fN ±
2,0625 MHz ... fN ±
2,25
MHz
1,5
dB
max.
3
dB
fN ±
3,00
MHz ... fN ±
4,75
MHz
15
dB
min.
12
dB
fN ±
4,75
MHz ... fN ±
200
MHz
45
dB
min.
40
dB
Operating temperature range
OTR
-
- 40 °C ... + 85°C
Storage temperature range
-
- 45 °C ... + 85°C
Frequency inversion temperature
28
°C
-
Temperature coefficient of frequency
TCf **
-0,04
ppm/K
2
-
*) 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
2) x (T-T0)2 x fTo(MHz)
Generated:
Checked / Approved:
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