The reference level for the relative attenuation arel of the TFS107A is the insertion loss. The attenuation at the nominal frequency is defined as the
insertion loss ae. The nominal frequency
f
N
is fixed at 107,52 MHz without any tolerance or limit. The values of relative attenuation arel are guaranteed for
the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
Data
Insertion loss
(reference level)
Nominal frequency
Passband
Pass band ripple ***;****
Relative attenuation
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
-
-
+
+
+
+
+
+
85
30
4
28,82
32,62
205,04
225,04
792,48
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
…
…
…
…
…
…
…
…
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
-
-
+
+
+
+
+
+
30
4
28,82
32,62
205,04
225,04
792,48
1000
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
ae
f
N
PB
typ. value
17,2
dB
tolerance / limit
max.
18
107,52
dB
MHz
MHz
dB
-
0,6
dB
max.
f
N
±
1,89
1,5
60
52
52
75
70
75
65
62
50
dB
dB
dB
dB
dB
dB
dB
dB
ns
°rms
dBm
dB
min.
min.
min.
min.
min.
min.
min.
min.
max.
max.
min.
min.
max.
50
40
40
45
40
35
40
30
90
2
30
10
15
dB
dB
dB
dB
dB
dB
dB
dB
ns
° rms
dBm
dB
dBm
Group delay ripple within PB ***
Phase ripple within PB
Intermodulation
Return loss within PB
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
TCf **
OTR
***
Output-IP3
*****
1,5
43
20
-
-
20
ppm/K
0 °C ... + 80°C
- 40 °C ... + 85°C
**)
∆f
c(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
N
(MHz)
***)
For a cascade of TFS 107 and TFS 107A;
****) In addition 1dB ripple should be fulfilled in any 1,26 MHz band for the cascade
*****) f
in1
= 106,52 MHz; f
in2
= 107,02 MHz; P
in
=10 dBm f
measurement
= 107,52 MHz
and f
in1
= ??MHz;
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 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.
编译自semiengineering 业界越来越关注人工智能的功耗问题,但这个问题并没有简单的解决方案。这需要深入了解应用、半导体和系统层面的软件和硬件架构,以及所有这些的设计和实现方式。每个环节都会影响总功耗和提供的效用。这是最终必须做出的权衡。 但首先,必须解决效用问题。电力是否被浪费了?“我们将电力用于有价值的用途,”Ansys(现为新思科技旗下公司)产品营销总监 Marc Swi...[详细]