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參數資料
| 型號： | TFS125A |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | VI SAW Filter(VI SAW 濾波器(終端阻抗:50Ω)) |
| 中文描述： | 1 FUNCTIONS, 125 MHz, SAW FILTER |
| 文件頁數： | 1/4頁 |
| 文件大小： | 45K |
| 代理商： | TFS125A |
tfs125a.doc
______________________________________________________________________________________________________
VI
TELEFILTER
Filter Specification
______________________________________________________________________________________________________
Measurement condition
Ambient temperature:
23
°
C
Input power level:
0 dBm
Terminating impedances: 50
Construction, pin connection and
recommended land dimensions
See page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 125 A is the maximum attenuation in the passband. The maximum attenuation in the
pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 125 MHz without tolerance or limit. The values of relative
attenuation arel are guaranteed in 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
______________________________________________________________________________________________________
Insertion loss
ae
(Reference level)
______________________________________________________________________________________________________
Nominal frequency
fN
______________________________________________________________________________________________________
1 dB bandwidth
BW
______________________________________________________________________________________________________
Relative attenuation
arel
fN - 150 kHz ... fN + 150 kHz
1 MHz... fN - 28 MHz
fN -
28 MHz ... fN - 14 MHz
fN +
14 MHz... fN + 28 MHz
fN +
28 MHz... fN + 325 MHz
______________________________________________________________________________________________________
VSWR
fN - 150 kHz ... fN + 150 kHz
______________________________________________________________________________________________________
Absolute group delay
GD
fN
______________________________________________________________________________________________________
Group delay ripple
GDD **)
fN - 150 kHz ... fN +150 kHz
______________________________________________________________________________________________________
Intermodulation
***)
IP
______________________________________________________________________________________________________
Input power level
______________________________________________________________________________________________________
Temperature coefficient of frequency
TCf
*)
______________________________________________________________________________________________________
Operating temperature range
______________________________________________________________________________________________________
*)
f(Hz) = TCf(ppm/K) x (
T) x fTo(MHz)
**)
measured with smoothing; smoothing aperture
≤
50 kHz
***)
modulation signals: f
N
and f
N
+ 14 MHz, each of 10 dBm; measured signal: f
N
- 14 MHz
generated:
checked / approved:
Version 1.3
31.10.00
TFS 125 A - Page 1 / 4
______________________________________________________________________________________________________
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
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.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
Stability Characteristics and Packing
See page 3
Air Reflow Temperature Conditions
See page 4
typ. value
tolerance / limit
-
1,5 ... 3,5
dB
-
125
MHz
-
min 300
kHz
-
-
-
-
-
max. 1
min. 12
min. 5
min. 15
min. 38
dB
dB
dB
dB
dB
-
max 2 : 1
-
max. 300
ns
-
max 30
ns
54
dB
min. 45
dB
max. 10
dBm
- 71.6
ppm/K
-
- 10 °C ... + 85 °C
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