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參數資料
| 型號： | B4540 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數： | 3/5頁 |
| 文件大?。?/td> | 66K |
| 代理商： | B4540 |
3
Apr 04, 2001
SAW Components
Bandpass Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B4540
112,32 MHz
T
Z
S
= 1,1 k
|| 390 nH
Z
L
= 0,9 k
|| 340 nH
= -40 to + 85 C
1)
Temperature dependance of f
c
:
f
c
(T) = f
c
(T
0
)(1 + TC
f
(T – T
0
)
2
)
Matching network to 50
(element values depend on pcb layout)
min.
—
typ.
112,32
max.
—
Nominal frequency
f
N
MHz
Insertion attenuation at f
N
(including losses in matching network)
Reference level for the following data
α
N
—
13,5
15,0
dB
Pass bandwidth
Β
3dB
—
1,6
—
MHz
Group delay ripple
(p-p)
τ
f
N
-700,0 kHz .. f
N
+700,0 kHz
—
100
150
ns
Relative attenuation
(relative to
α
N
)
f
N
30,00 MHz ... f
N
6,32 MHz
f
N
6,32 MHz ... f
N
4,00 MHz
f
N
4,00 MHz ... f
N
1,72 MHz
f
N
+
1,72 MHz ... f
N
+
4,00 MHz
f
N
+
4,00 MHz ... f
N
+
6,00 MHz
f
N
+
6,00 MHz ... f
N
+
8,00 MHz
f
N
+
8,00MHz ...f
N
+
30,00MHz
f
N
+
17,28 MHz
α
rel
45
40
30
30
40
35
40
45
59
53
42
41
50
41
45
57
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
Impedance
at f
N
Input:
Output: Z
OUT
= R
OUT
|| C
OUT
Z
IN
= R
IN
|| C
IN
—
—
3,9|| 5,0
3,3|| 6,1
—
—
k
|| pF
k
|| pF
ppm/K
2
Temperature coefficient of frequency
1)
TC
f
T
0
—
– 0,03
—
Turnover temperature
—
30
—
C
L
s1
L
s2
= 330 nH
= 270 nH
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