鈩?/div>
II 鈥?3,7 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS 380G is the minimum of the pass band attenuation amin. This value 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 given values for the relative attenuation arel and 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.
Data
Insertion loss
ae = amin
typ. value
12,6 dB
-
380
MHz
limit
max.
14
380
-
dB
MHz
Nominal frequency
fN
Centre frequency
fc
Relative attenuation
arel
f
N
f
N
鹵
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
... f
N
鹵
1,72 kHz ... f
N
鹵
kHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
... f
N
鹵
... f
N
鹵
... f
N
鹵
... f
N
-
... f
N
-
... f
N
-
... f
N
+
... f
N
+
1,72
1,92
3
4
6
50
14,5
6
50
3
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
GHz
MHz
MHz
0,5 dB
1,0 dB
8
28
41
60
53
45
43
45
65
dB
dB
dB
dB
dB
dB
dB
dB
ns
max.
max.
min.
min.
min.
min.
min.
min.
min.
min.
1
dB
1,5 dB
5
22
35
55
50
40
40
40
dB
dB
dB
dB
dB
dB
dB
dB
ns
deg rms
dBm
dB
鹵
2,5
鹵
3
鹵
4
- 375
-
50
-
14,5
+
6
+ 50
Group delay ripple
in f
N
鹵 1,92
Phase linearity
Input power level
VSWR
within
f
N
鹵
1,92 MHz
max. 100
max.
3
in f
N
鹵 1,92
0,8 deg rms
-
16
-
-
dB
max. + 20
min.
12
Operating temperature range
Storage temperature range
Temperature coefficient
Frequency inversion temperature
TC
**
T
0
-10
擄C...+
85
擄C
- 35
擄C..
+ 85
擄C
-
-
- 0,04 ppm/K虜
45
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
**)
鈭唂(Hz)
= TCf(ppm/K) x (T-T
0
)虜 x fTo(MHz)
generated:
checked / approved:
TELEFILTER GmbH
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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