
3
Dec 15, 1999
SAW Components
Low-loss Filter
Data Sheet
B3570
868,30 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.
868,39
max.
—
Center frequency
(center frequency between 3 dB points)
f
C
MHz
Minimum insertion attenuation
α
min
868,00 ... 868,78 MHz
—
2,7
4,2
dB
Pass band
(relative to
α
min
)
868,00 ... 868,78 MHz
867,90 ... 868,88 MHz
—
—
1,0
1,5
3,0
6,0
dB
dB
Relative attenuation
(relative to
α
min
)
α
rel
10,00 ... 700,00 MHz
700,00 ... 830,00 MHz
830,00 ... 850,00 MHz
850,00 ... 865,20 MHz
871,00 ... 874,50 MHz
874,50 ... 883,00 MHz
883,00 ... 900,00 MHz
900,00 ...1000,00 MHz
50
35
32
25
11
22
30
35
55
45
40
30
16
27
35
40
—
—
—
—
—
—
—
—
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
—
—
216 ||2,20
222 ||2,20
—
—
|| pF
|| pF
ppm/K
2
Temperature coefficient of frequency
1)
TC
f
T
0
—
–0,03
—
Frequency inversion point
15
—
35
°
C