B3815 查看數據表（PDF） - EPCOS AG
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B3815 Datasheet PDF : 7 Pages
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SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
B3815
385,0 MHz
TA = -30 ... +70 ˚C
ZS = 50 Ω unbalanced or unbalanced to balanced
ZL = 50 Ω unbalanced or unbalanced to balanced
Nominal frequency
min.
typ.
max.
fN
—
385,0
— MHz
Maximum insertion attenuation
380,0 MHz ... 390,0 MHz
αmax
—
2,6
4,0 dB
Amplitude ripple (p-p)
380,0 MHz ... 390,0 MHz
∆α
—
0,7
2,0 dB
Return loss (Input and Output)
380,0 MHz ... 390,0 MHz
10,0
12,0
— dB
VSWR
380,0 MHz ... 390,0 MHz
—
1,8:1
2,0:1
Absolute attenuation
0,1 MHz ... 350,0 MHz
350,0 MHz ... 370,0 MHz
400,0 MHz ... 430,0 MHz
430,0 MHz ... 760,0 MHz
760,0 MHz ... 1496,0 MHz
1496,0 MHz ... 2600,0 MHz
2600,0 MHz ... 4000,0 MHz
αabs
40
50
— dB
13
25
— dB
10
17
— dB
44
52
— dB
30
35
— dB
20
25
— dB
5
6
— dB
Symmetry in band
|S31|/|S21| 380,0 ... 390,0 MHz
arg(S31/S21) 380,0 ... 390,0 MHz
-0,5
170
0,5
180
1,5 dB
190 ˚
Temperature coefficient of frequency
TCf
—
– 70
— ppm/K
4 May 15, 2002
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