參數(shù)資料
型號(hào): B2581
英文描述: Analog IC
中文描述: 模擬IC
文件頁數(shù): 3/6頁
文件大?。?/td> 84K
代理商: B2581
3
Feb 01, 2000
SAW Components
Spectrum Shaping Filter
Data Sheet
B2581
70,00 MHz
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture:
T
Z
S
= 50
Z
L
= 50
2,5 MHz
= 35 C
1) see next page
min.
69,85
typ.
70,00
max.
70,15 MHz
Center frequency
(center between 6 dB points)
f
C
Insertion attenuation
at f
C
α
C
39,8
41,0
dB
Pass band tilt
0,006
0,02 dB/MHz
Deviation from theoretical frequency resp.
1)
α
f
C
61,00 ...
...
f
C
±
f
Y
75,00 MHz
±
0,2
±
0,1
±
0,3
±
0,2
dB
dB
Phase ripple (p-p)
f
C
61,00 ...
...
f
C
±
f
Y
75,00 MHz
2,2
1,2
3,5
2,0
Relative attenuation
(relative to
α
C
)
α
rel
30,00 ...
85,50 ... 110,00 MHz
54,50 MHz
34,0
32,0
40,0
36,0
dB
dB
Reflected wave signal suppression
2,0
μ
s ... 1,2
μ
s before main pulse
1,2
μ
s ... 6,0
μ
s after main pulse
50,0
50,0
56,0
61,0
dB
dB
Group delay
at f
C
τ
C
1,55
μ
s
Group delay ripple (p-p)
τ
f
C
...
f
C
±
f
Y
3,3
11,96
0,29
0,5
– 87
6,0
ns
MHz
Nyquist frequency
Roll-off factor
Partitioning factor
f
Y
a
p
TC
f
Temperature coefficient of frequency
ppm/K
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