參數(shù)資料
型號: B3689
英文描述: Analog IC
中文描述: 模擬IC
文件頁數(shù): 3/5頁
文件大?。?/td> 71K
代理商: B3689
3
Jul 18, 2000
SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
B3689
111,00 MHz
T
Z
S
= 50
Z
L
= 135
|| 45 nH
= +25 C
Matching network to 50
(element values depend on PCB layout)
:
min.
typ.
111,00
max.
Nominal frequency
f
N
MHz
Center frequency
(center frequency between -3 dB points)
Minimum insertion attenuation
(including loss in matching elements)
Passband width
f
c
110,94
111,00
111,06
MHz
α
min
12,4
14,0
dB
B
3dB
1235
kHz
Group delay ripple
(p-p)
f
c
- 650 kHz
f
c
- 850 kHz
τ
...
...
f
c
+ 650 kHz
f
c
+ 850 kHz
230
350
400
450
ns
ns
Relative attenuation
(relative to
α
min
)
f
c
f
c
±
0,20 MHz
f
c
±
0,30 MHz
f
c
±
0,45 MHz
f
c
±
0,49 MHz
f
c
±
0,6 MHz
f
c
±
1,0 MHz
f
c
±
1,1 MHz
f
c
±
1,6 MHz
f
c
±
3,0 MHz
α
rel
...
...
...
...
...
...
...
...
...
...
f
c
±
0,20 MHz
f
c
±
0,30 MHz
f
c
±
0,45 MHz
f
c
±
0,49 MHz
f
c
±
0,65 MHz
f
c
±
1,0 MHz
f
c
±
1,1 MHz
f
c
±
1,6 MHz
f
c
±
3,0 MHz
f
c
±
10,0 MHz
3
15
18
34
40
0,4
1,0
2,3
2,7
5,7
6
20
28
43
48
1,0
1,5
3,0
4,0
7,0
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Impedance
in passband
Input:
Output: Z
OUT
= R
OUT
|| C
OUT
Z
IN
= R
IN
|| C
IN
170 || 30
170 || 30
|| pF
|| pF
Temperature coefficient of frequency
TC
f
– 18
ppm/K
L
s1
C
p2
=
=
68 nH
71 pF
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