file name: Tfs 140.doc
Version 2.3
05.03.2002
VI TELEFILTER
1. Measurement condition :
Ambient temperature
T
A
:
Input power level:
Terminating impedances in fc * ) :
23 擄C
0 dBm.
for input:
for output:
Filter specification
TFS 140
1/4
1177
鈩?鈳熲帰
- 6,17 pF.
1330
鈩?鈳熲帰
- 5,33 pF.
(typical value )
2. Characteristics :
Remark: Reference level for the relative attenuation
arel
of the
TFS 140
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 reference 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 temperature coefficient of frequency
Tc
f
is valid
both for the reference frequency
fc
and the frequency response of the filter in the operating temperature range. The frequency shift of the
filter in the operating temperature range is not included in the production tolerance scheme
Data
Insertion loss
(Reference level)
Centre frequency
ae
typ. value
22,5 dB
140,01 MHz
tolerance / limit
max.
24
dB
fc
at ambient temperature T
A
(f
CAT
)
140,00 鹵 0,10 MHz
f
C
- 3,0 MHz ... f
C
+ 3,0 MHz
Pass band
at ambient temperature T
A
:
PB
Amplitude ripple (p-p):
f
C
鈥?2,6 MHz ... f
C
+ 2,6 MHz
f
C
鹵 2,6 MHz ... f
C
鹵 2,8 MHz
Bandwidth
at ambient temperature T
A
:
1 dB
3 dB
3 dB
20 dB
40 dB
45 dB
Relative attenuation
f
C
f
C
f
C
f
C
f
C
f
C
f
C
f
C
f
C
鹵
鹵
鹵
鹵
鹵
-
+
+
+
2,6
2,8
3,2
4,1
4,5
65
12
75
130
MHz ... f
C
鹵 2,8
MHz ... f
C
鹵 3,0
MHz ... f
C
鹵 4,1
MHz ... f
C
鹵 4,5
MHz ... f
C
鹵 12
MHz ... f
C
- 12
MHz ... f
C
+ 75
MHz ... f
C
+ 130
MHz ... f
C
+ 460
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
-
dB
dB
dB
dB
dB
dB
dB
dB
0,5 dB
0,7 dB
5,76 MHz
6,24 MHz
6,24 MHz
6,30 MHz
7,95 MHz
8...8,6 MHz
max.
max.
min.
min.
max.
max.
max.
1
1
5,6
6,0
6,4
8,2
9,0
dB
dB
MHz
MHz
MHz
MHz
MHz
45
48...53
75...55
55...75
48...50
70
max.
max.
min.
min.
min.
min.
min.
min.
max.
max.
1
3
3
40
45
50
50
47
2,0
80
dB
dB
dB
dB
dB
dB
dB
dB
碌s
ns
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Deviation from linear phase in PB band (p-p):
VSWR (S11) / (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
Frequency inversion temperature ( T
o
)
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature: * )
Operating temperature range
Storage temperature range
Input power
1,84 碌s
50...60
ns
4..4,5 擄 (r.m.s. 1,3擄)
(2:1) / (2:1)
49 dB
55...60 dB
25擄 C
-0,045
ppm/K虜
鈭唂
c(Hz) = Tc
f
(ppm/K) x (T - T
o
)虜 x
f
To
(MHz)
- 25 擄C ... + 80 擄C
- 40 擄C ... + 85 擄C
max.
20
dBm
*) 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:
Dunzow W.
Dr. Bert Wall
VI TELEFILTER
Potsdamer Stra脽e 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / 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
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