參數(shù)資料
型號(hào): B2582
英文描述: Analog IC
中文描述: 模擬IC
文件頁(yè)數(shù): 3/5頁(yè)
文件大?。?/td> 62K
代理商: B2582
3
Apr 04, 2001
SAW Components
Spectrum Shaping Filter
Data Sheet
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture
B2582
140,0 MHz
T
Z
S
= 50
Z
L
= 50
2.5 MHz
= 25 C
1) Theoretical frequency response:
H(x) = (S(x))
p
1
S(x) =
(1+cos(
π
·(|x|-1+a)/2a))/2
0
x = (f-f
C
)/f
Y
for
for 1-a
for 1+a
|x|
|x|
1+a
< |x| < 1+a
min.
139,85
typ.
140,00
max.
140,15 MHz
Center frequency
(center between 6 dB points)
f
C
Insertion attenuation
at f
C
α
C
29
31
dB
Pass band tilt
0,00
0,02 dB/MHz
Deviation from theoretical frequency resp.
1)
α
f
C
...
f
C
±
f
Y
±
0,2
±
0,3
dB
Deviation from linear phase
f
C
...
f
C
±
f
Y
±
1,1
±
1,75
Relative attenuation
(relative to
α
C
)
α
rel
30,0
169,5
... 110,5
... 240,0
MHz
MHz
38
33
44
37
dB
dB
Reflected wave signal suppression
0,6
μ
s ... 2,8
μ
s after main pulse
0,94
μ
s ... 0,6
μ
s before main pulse
48
44
53
46
dB
dB
Group delay
at f
C
Group delay Ripple (p-p)
τ
C
τ
C
0,94
μ
s
f
C
...
f
C
±
f
Y
2,4
19,44
0,5
0,5
– 87
4,0
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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