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參數資料
| 型號： | TFS400K |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | Preliminary Specification |
| 中文描述： | 1 FUNCTIONS, 400.04 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 120K |
| 代理商： | TFS400K |
tfs400k.doc
VI
TELEFILTER
version 3.2
01.12.2003
Preliminary Specification
TFS 400 K 1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
External coil:
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS400K 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 1 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 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 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
TELEFILTER GmbH
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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.
°C
dBm
23
10
375
-1.9 pF
375
-1.9 pF
47 nH
typ. value
tolerance / limit
Insertion Loss
(reference level)
ae
4,5
dB
max.
6,5
dB
Nominal Frequency
f
N
400,04
MHz
400
MHz
Bandwidth
B W
3
dB
T.B.D.
-
Relative Attenuation
arel
82,5 kHz
f
N
... f
N
±
0,4
dB
max.
1
dB
f
N
f
N
f
N
±
±
±
500
700
kHz
kHz
MHz ... f
N
... f
N
... f
N
±
±
±
700
kHz
MHz
MHz
28
43
50
dB
dB
dB
min.
min.
min.
15
27
40
dB
dB
dB
1
1
13
Group Delay Ripple
f
N
±
82,5 kHz
0,6
μs
max.
1
μs
Operating Temperature Range
OTR
-
-40 °C ... + 85 °C
Storage Temperature Range
-
- 40 °C ... + 85°C
Frequency Inversion Temperature
20
°C
-
Temperature Coefficient of Frequency
TCf **
-0,036 ppm/K2
-
*)
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. These values have to be
confirmed by balanced s-parameter measurement.
**)
f(Hz) = TCf(ppm/K) x (T-T
0
)2 x fTo(MHz).
Generated:
Checked / Approved:
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