
3
Dec 15, 1999
SAW Components
Low-loss Filter
Data Sheet
B3556
403,55 MHz
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T
A
= 25 C
Z
S
= 50
and matching network
Z
L
= 50
and matching network
1)
Temperature dependence of f
C
: f
C
(T
A
) =
f
C
(T
0
) (1 + TC
f
(T
A
– T
0
)
2
)
min.
—
typ.
403,59
max.
—
Center frequency
(center frequency between 3 dB points)
f
C
MHz
Minimum insertion attenuation
α
min
403,43 ... 403,75 MHz
—
3,0
4,5
dB
Pass band
(relative to
α
min
)
403,33...403,85MHz
403,27...403,91MHz
—
—
2,0
3,0
3,0
6,0
dB
dB
Relative attenuation
(relative to
α
min
)
α
rel
10,00 ... 370,00 MHz
370,00 ... 394,00 MHz
394,00 ... 400,50 MHz
400,50 ... 402,00 MHz
404,80 ... 405,80 MHz
405,80 ... 409,00 MHz
409,00 ... 420,00 MHz
420,00 ... 600,00 MHz
40
35
15
20
18
7
25
35
45
42
25
30
25
10
32
42
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
Impedance
for pass band matching
Input:
Output: Z
OUT
= R
OUT
|| C
OUT
Z
IN
= R
IN
|| C
IN
—
—
270 || 4,1
280 || 4,0
—
—
|| pF
|| pF
ppm/K
2
Temperature coefficient of frequency
1)
TC
f
T
0
—
–0,03
—
Frequency inversion point
—
25
—
°
C