B7901 查看數據表（PDF） - EPCOS AG
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B7901 Datasheet PDF : 9 Pages
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SAW Components
SAW Rx Filter
Data Sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –30 ˚C to +85 ˚C
ZS = 50 Ω
ZL = 100 Ω (balanced)
B7901
1855.0 MHz
Center frequency
Maximum insertion attenuation
1840.0 ... 1870.0
Amplitude ripple (p-p)
1840.0 ... 1870.0
Input VSWR
1840.0 ... 1870.0
Output VSWR
1840.0 ... 1870.0
MHz
MHz
fC
αmax
∆α
MHz
MHz
min.
—
typ.
@ 25˚C
1855.0
max.
—
MHz
—
1.6 2.41) dB
—
0.3
0.8 dB
—
1.4
1.8
—
1.5
1.9
Output amplitude balance (|S31/S21|)
1840.0 ... 1870.0 MHz
Output phase balance (φ(S31)−φ(S21)+180˚)
1840.0 ... 1870.0 MHz
–1.0 -0.3/0.3 1.0 dB
–10 -5/+5 10 ˚
Attenuation
10.0 ... 1750.0
1750.0 ... 1780.0
1930.0 ... 1975.0
1975.0 ... 2020.0
2020.0 ... 2100.0
2100.0 ... 2500.0
2500.0 ... 2650.0
2650.0 ... 4000.0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
42
49
— dB
37
40
— dB
28
32
— dB
36
42
— dB
40
46
— dB
45
49
— dB
42
45
— dB
45
60
— dB
1) 2.2 dB max. at 25 ˚C
Please read cautions and warnings and
important notes at the end of this document.
3 May 10, 2006
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