B7845 Datasheet, PDF (3/6 Pages) EPCOS – Low-Loss Filter for Mobile Communication

SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = 25 ˚C
Z_S = 50 Ω
Z_L = 150 Ω || 82 nH (balanced)
Center frequency
min.
typ.
f_C
—
881,5
B7845
881,5 MHz
max.
— MHz
Maximum insertion attenuation
α_max
869,0 ... 894,0 MHz
—
1,2
1,5 dB
Amplitude ripple (p-p)
∆α
869,0 ... 894,0 MHz
—
0,4
0,6 dB
Input VSWR
869,0 ... 894,0 MHz
—
1,5
1,8
Output VSWR
869,0 ... 894,0 MHz
—
1,5
1,8
Attenuation
0,0
434,0
447,0
914,0
1000,0
1738,0
... 434,0
... 447,0
... 849,0
...1000,0
...1738,0
...6000,0
MHz
MHz
MHz
MHz
MHz
MHz
45
54
45
52
30
35
26
29
28
38
40
46
— dB
— dB
— dB
— dB
— dB
— dB
Amplitude balance (|S₃₁/S₂₁|)
869,0 ... 894,0 MHz
-1,0 -0,5 ... 0,0 1,0 dB
Phase balance (φ(S₃₁)−φ(S₂₁)+180˚)
869,0 ... 894,0 MHz
-5 -3,0 ... 1,5 5 degree
Common mode suppression
S_sc12
869,0 ... 894,0 MHz
20
26
— dB
824,0 ... 995,0 MHz
20
26
— dB
1648,0 ... 1990,0 MHz
22
40
— dB
3296,0 ... 3980,0 MHz
20
35
— dB
3 Sep 15, 2005