SAW Components
Bandpass Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Insertion attenuation
Reference level for the
following data
Amplitude ripple
(p-p)
Relative attenuation
40,75
41,31
41,43
41,60
46,40
46,57
46,69
47,25
39,10
40,35
48,65
55,00
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
X 6941 D
44,00 MHz
T
A
= 25 ˚C
Z
S
= 50
Ω
Z
L
= 2 kΩ || 3 pF and matching network
min.
α
44,00 MHz
∆α
18,5
20,0
21,5
dB
typ.
max.
41,60 ... 46,40 MHz
α
rel
—
25,0
1,1
–0,4
–0,4
–0,4
0,1
1,5
25,0
34,0
27,0
25,0
32,0
0,4
32,0
1,6
0,3
0,1
0,1
0,6
2,0
36,0
42,0
32,0
30,0
37,0
—
—
2,1
1,0
0,6
0,6
1,1
2,5
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Lower sidelobe
Upper sidelobe
35,00
39,10
47,65
48,65
...
...
...
...
Reflected wave signal suppression
1,5
µs
... 6,0
µs
after main pulse
(test pulse 250 ns,
carrier frequency 44,00 MHz)
Group delay ripple
(p-p)
41,31 ... 46,69 MHz
Impedance
at 44,00 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
Matching network:
∆τ
42,0
56,0
—
dB
—
—
—
30
1,9 || 22,2
6,1 || 5,7
–18
80
—
—
—
ns
kΩ || pF
kΩ || pF
ppm/K
TC
f
—
L
p1
= 1800 nH
3
Dec 08, 2003
EPCOS [ EPCOS ]
