B7844 Datasheet, PDF (4/6 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 = -20 to +75 ˚C
Z_S = 50 Ω
Z_L =150 Ω || 15 nH (balanced)
Center frequency
min.
typ.
f_C
— 1842,5
B7844
1842,5 MHz
max.
— MHz
Maximum insertion attenuation
α_max
1805,0 ... 1880,0 MHz
—
1,9
2,3 dB
Amplitude ripple (p-p)
∆α
1805,0 ... 1880,0 MHz
—
0,6
1,3 dB
Input VSWR
1805,0 ... 1880,0 MHz
—
2,1
2,6
Output VSWR
1805,0 ... 1880,0 MHz
—
2,0
2,6
Output amplitude balance (|S₃₁/S₂₁|)
1805,0 ...1880,0 MHz
-1,0 -0,7 / +0,5 1,0 dB
Output phase balance (φ(S₃₁)−φ(S₂₁)+180˚)
1805,0 ...1880,0 MHz
-10
-1 / +4
10 ˚
Attenuation
0,0
902,0
940,0
1705,0
1920,0
1980,0
2030,0
2400,0
2500,0
2775,0
2880,0
3610,0
3760,0
5415,0
5640,0
... 902,0
... 940,0
... 1705,0
... 1785,0
... 1980,0
... 2030,0
... 2400,0
... 2500,0
... 2775,0
... 2880,0
... 3610,0
... 3760,0
... 5415,0
... 5640,0
... 6000,0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
30
50
45
50
28
33
10
14
15
18
23
28
28
32
32
37
27
30
40
47
28
46
40
46
28
47
35
44
28
44
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
4 Mar 22, 2004