SAW Components
SAW band-stop filter
Data sheet
B1672
897.50 MHz
Characteristics (including losses in the matching network)
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T
ZS
ZL
= –40 ˚C to +105 ˚C
=
=
50 Ω and matching network
50 Ω and matching network
typ.
@ 25 ˚C
min.
max.
Nominal center frequency
fN
—
897.50
—
MHz
dB
Minimum insertion attenuation
αmin
—
1.2
1.8
470.00 ... 862.00 MHz
Maximum insertion attenuation
470.00 ... 798.00 MHz
αmax
—
—
1.8
3.5
2.2
4.0
dB
dB
798.00 ... 862.00 MHz
Input VSWR
470.00 ... 862.00 MHz
—
—
1.5
1.5
—
—
Output VSWR
470.00 ... 862.00 MHz
Attenuation
α
87.00 ... 108.00 MHz
174.00 ... 240.00 MHz
880.00 ... 915.00 MHz
1710.00 ... 1785.00 MHz
1920.00 ... 1980.00 MHz
35.0
11.0
8.0
8.0
12.0
45.0
16.0
19.0
18.0
20.0
—
dB
dB
dB
dB
dB
—
—
—
—
Matching network (element values depend on PCB layout)
Ls1
Ls4
1
5
Ls1 = 8.2 nH
Lp2 = 15.0 nH
Lp3 = 62.0 nH
Ls4 = 10.0 nH
7,8
3,4
2
6
Lp2
Lp3
Q factor of inductors:
40 @ 770 MHz
Please read cautions and warnings and
important notes at the end of this document.
3
May 3, 2013
TDK [ TDK ELECTRONICS ]
