SAW Components
Low-Loss Filter for Mobile Communication
Data Sheet
Characteristics
Operating Temperature Range:
Terminating source impedance:
Terminating load impedance:
B7720
1960,0 MHz
T
= -10 to +80˚C
Z
S
= 50
Ω
(unbalanced)
Z
L
= 50
Ω
(balanced)
min.
typ.
1960,0
max.
—
MHz
Center frequency
Maximum insertion attenuation
1930,0 ... 1990,0
Amplitude ripple
(p-p)
1930,0 ... 1990,0
Input VSWR
1930,0 ... 1990,0
Output VSWR
1930,0 ... 1990,0
MHz
MHz
f
C
α
max
MHz
∆α
MHz
—
—
2,8
3,4*
dB
—
1,0
1,8
dB
—
1,8
2,0
—
1,8
2,0
Output phase balance
(φ(S
31
)−φ(S
21
)+180˚)
1930,0 ... 1990,0 MHz
Output amplitude balance
(|S
31
/S
21
|)
1930,0 ... 1990,0
-15
—
17
˚
MHz
-3,0
—
3,0
dB
Differential to common mode suppression
S
sc12
855,0 ... 995,0 MHz
1710,0 ... 1930,0 MHz
1930,0 ... 1975,0 MHz
1975,0 ... 1990,0 MHz
3420,0 ... 3980,0 MHz
Attenuation
DC
1600,0
1830,0
2010,0
2070,0
4000,0
5000,0
... 1600,0
... 1830,0
... 1910,0
... 2070,0
... 4000,0
... 5000,0
... 6000,0
MHz
MHz
MHz
MHz
MHz
MHz
MHz
α
22,0
20,0
18,0
17,0
22,0
29,0
25,0
20,0
18,0
28,0
—
—
—
—
—
dB
dB
dB
dB
dB
28
25
10
10
23
18
16
33
28
11
14
25
20
19
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
* the insertion attenuation includes also pcb losses of typ. 0,2dB
4
Jul 3, 2003
EPCOS [ EPCOS ]
