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参数资料
| 型号： | B3621 |
| 英文描述： | Analog IC |
| 中文描述： | 模拟IC |
| 文件页数： | 3/5页 |
| 文件大小： | 63K |
| 代理商： | B3621 |
3
Apr 04, 2001
SAW Components
Low-Loss Filter
Data Sheet
B3621
227,0 MHz
Characteristics
Ambient temperature:
Source impedance:
Load impedance:
T
A
= 25 C
Z
S
= 50
and matching network
Z
L
= 50
and matching network
1)
Temperature dependance of f
c
:
f
c
(T
A
) = f
c
(T
0
)(1 + TC
f
(T
A
– T
0
))
Matching network:
Cp1 = 22 pF
Ls2 = 27 nH
Ls3 = 27 nH
Cp4 = 22 pF
min.
—
typ.
227,00
max.
—
Nominal frequency
f
N
MHz
Minimum insertion attenuation
Reference level for the following data
α
min
—
6,0
7,5
dB
Amplitude ripple
(p-p)
α
f
N
±
400 kHz
—
0,6
1,1
dB
Relative attenuation
(relative to
α
min
)
f
N
- 20,0 MHz ... f
N
- 6,0 MHz
f
N
- 6,0 MHz ...
f
N
+ 1,8 MHz ...
f
N
+ 6,0 MHz ...
α
rel
40
30
30
40
—
—
—
—
—
—
—
—
dB
dB
dB
dB
f
N
- 1,8 MHz
f
N
+ 6,0 MHz
f
N
+ 20,0 MHz
Group delay ripple
(p-p)
τ
f
N
±
400 kHz
—
70
150
ns
Temperature coefficient of frequency
1)
TC
f
—
– 18
—
ppm/K
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