- 22,7 pF.
鈩?/div>
鈳熲帰
- 27,0 pF.
2. Characteristics
Remark: Reference level for the relative attenuation
arel
of the
TFS 150N
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
at ambient temperature T
A
Pass band
Pass band ripple ( p鈥損 ) :
Bandwidth
at ambient temperature T
A
1 dB
3 dB
25 dB
40 dB
45 dB
Relative attenuation
f
C
... f
C
鹵
f
C
鹵 2,05 MHz ... f
C
鹵
f
C
鹵 2,65 MHz ... f
C
鹵
f
C
鹵 3,0 MHz ... f
C
鹵
f
C
鹵 3,2 MHz ... f
C
鹵
2,05 MHz
2,30 MHz
3,0 MHz
3,2 MHz
100
MHz
arel
ae = amin
typ. value
24,7
150,01
4,50
0,5
dB
MHz
MHz
dB
tolerance / limit
max.
25
dB
MHz
MHz
dB
fc
PB
150,0 鹵 0,1
f
C
... f
C
鹵 2,05
max.
1
4,62
4,77
5,22
5,33
5,36
MHz
MHz
MHz
MHz
MHz
min.
min.
max.
max.
max.
4,1
4,6
5,3
6,0
6,4
MHz
MHz
MHz
MHz
MHz
-
-
-
46
50...70
3,92
100
2,7
15
15
50
60...70
dB
dB
碌s
ns
degree
dB
dB
dB
dB
max.
max.
min.
min.
min.
1
3
25
40
45
dB
dB
dB
dB
dB
碌s
ns
Group delay ( mean value in PB )
Group delay ripple in PB:
Deviation from linear phase in PB (p-p):
Input VSWR (S11) in PB :
Output VSWR (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
Input power level
Frequency inversion temperature ( T
o
)
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature:
** )
Operating temperature range ( OTR )
Storage temperature range
max.
4,5
max. 120
-
-
-
-
-
max.
20
-
-
dBm
20
擄C
- 0,036
ppm/K虜
鈭唂
c(Hz) = Tc
f
(ppm/K) x (T - T
o
)虜 x f
O
(MHz)
-
-
- 33 擄C ... + 85 擄C
- 40 擄C ... + 85 擄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
O
= f
To
is reference frequency fc at frequency inversion temperature (T
o
)
generated:
checked / approved:
W. Dunzow
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
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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