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參數資料
| 型號： | TFS71H |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | Filter specification |
| 中文描述： | 1 FUNCTIONS, 71.11 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 185K |
| 代理商： | TFS71H |
File name: Tfs71H.doc
VI
TELEFILTER
version 1.1
TFS 71H
11.01.2002
1 / 5
Filter specification
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances in fc *) :
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 71H
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 frequence
fc
is the arithmetic mean value of the upper and lower
frequencies at the
3,75 dB
filter attenuation level relative to the insertion loss
ae
. The nominal frequency
fN
is fixed on
71,100 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
. All specified values are guarantied in operating temperature range.
Data
Insertion loss
(Reference level)
ae
25
0
for input:
for output:
°C
dBm
440
- 29,12 pF.
450
- 33,11 pF.
typ. value
16
tolerance / limit
max. 17
dB
dB
Nominal frequency
Centre frequency
fN
71,100
MHz
fc
at ambient temperature
(f
CTA
)
71,110 MHz
Pass band
Amplitude ripple (p-p) in
PB
fN - 525 kHz ... fN + 525 kHz
fN .... fN ± 500 kHz
0,5
dB
Bandwidth :
1
1,5
3,0
3,75
kHz
kHz
kHz
MHz
min.
min.
kHz
kHz
dB
dB
dB
dB
1120
1150
1205
1215
1050
1180
25
40
45
50
dB
dB
dB
dB
1445
1520
1540
1555
MHz
kHz
kHz
kHz
max. 1500
max. 1800
kHz
kHz
Relative attenuation
fN ...... fN ± 525 kHz
fN ± 525 kHz .... fN ± 590 kHz
arel
max.
max.
dB
-
-
1
3,75 dB
fN ± 750 kHz .... fN ± 900 kHz
fN ± 900 kHz .... fN ± 40
32
55
dB
dB
min.
min.
25
45
dB
dB
MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase (p-p) in
Deviation from linear phase ( r.m.s.) in
7,1
μs
ns
6,0 .... 7,75
max.
max.
μs
μs
degree
550
1
fN .... fN ± 630 kHz
fN .... fN ± 630 kHz
6°
1,6°
2
Input/Output return loss with matching network (S11/S22):
9...12
dB
min.
8
dB
Frequency inversion temperature ( T
o
) :
Temperature coefficient of frequency ( Tc
f
) :
Frequency deviation of fc over temperature:
** )
20...30 °C
- 0,036
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
)2 x f
To
(MHz)
ppm/K2
Operating temperature range ( OTR ) :
Storage temperature range :
0 °C ... + 85 °C
- 30 °C ... + 85 °C
*) 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
To
is reference frequence fc at frequency inversion temperature (T
o
)
Generated:
Checked/Approved:
Wadim Dunzow
Dr. Bert Wall
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
Phone: (603) 598-0070 Fax: (603) 598-0075
e-mail:
vti@vtinh.com
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