參數(shù)資料
型號: B619
英文描述: Analog IC
中文描述: 模擬IC
文件頁數(shù): 4/9頁
文件大?。?/td> 135K
代理商: B619
4
Dec 13, 1999
SAW Components
Satellite Receiver Filter
Data Sheet
B 619
479,50 MHz
Characteristics of channel 2
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture
T
A
=
Z
S
=
Z
L
25 C
50
50
=
0,25MHz
min.
typ.
22,7
max.
23,6
Insertion attenuation
Reference level for the
following data
479,50 MHz
α
dB
Center frequency
f
c
478,50
479,50
480,50 MHz
Pass bandwidth
α
rel
3 dB B
3dB
36,0
MHz
Relative attenuation
α
rel
461,50 MHz
497,50 MHz
34,0
30,0
3,5
2,3
39,0
36,0
4,8
4,8
dB
dB
dB
dB
Lower sidelobe
Upper sidelobe
430,00 … 449,00 MHz
510,00 … 530,00 MHz
Reflected wave signal suppression
0,13
μ
s … 2,0
μ
s after main pulse
40,0
45,0
dB
Amplitude ripple (p–p)
α
468,50 ... 490,50 MHz
0,3
0,5
dB
Group delay ripple (p–p)
τ
461,50 ... 497,50 MHz
12
18
ns
Impedance
at 479,50 MHz
Output: Z
OUT
= R
OUT
|| C
OUT
360||2,5
|| pF
Temperature coefficient of frequency
TC
f
– 86
ppm/K
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