SAW Components
Low-loss Filter
Data Sheet
B3551
315,00 MHz
Characteristics
Reference temperature:
TA = 25 ˚C
Terminating source impedance:
Terminating load impedance:
ZS = 50 Ω and matching network
ZL = 50 Ω and matching network
min.
typ.
max.
fC
—
315,02
—
MHz
dB
Center frequency
(center frequency between 3 dB points)
Minimum insertion attenuation
αmin
314,82 ... 315,22 MHz
—
3,0
4,5
Pass band (relative to αmin
)
314,77 ... 315,26 MHz
314,71 ... 315,32 MHz
—
—
1,5
2,0
3,0
6,0
dB
dB
Relative attenuation (relative to αmin
)
αrel
10,00 ... 270,00 MHz
270,00 ... 309,00 MHz
309,00 ... 314,00 MHz
316,00 ... 335,00 MHz
335,00 ... 400,00 MHz
400,00 ...1000,00 MHz
45
35
15
10
35
45
50
40
20
15
40
50
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
Impedance for pass band matching
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
—
—
950 || 3,18
960 || 3,14
—
—
Ω || pF
Ω || pF
Temperature coefficient of frequency 1)
Frequency inversion point
TCf
T0
—
5
–0,03
—
—
ppm/K2
35
°C
1)Temperature dependence of fC: fC(TA) = fC(T0) (1 + TCf(TA – T0)2)
3
Dec 15, 1999