X6941D Datasheet, PDF (3/6 Pages) EPCOS – SAW Components Bandpass Filter

SAW Components
Bandpass Filter
Data Sheet
X 6941 D
44,00 MHz
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T_A = 25 ˚C
Z_S = 50 Ω
Z_L = 2 kΩ || 3 pF and matching network
Insertion attenuation
Reference level for the
following data
Amplitude ripple (p-p)
Relative attenuation
Lower sidelobe
Upper sidelobe
41,60 ...
35,00 ...
39,10 ...
47,65 ...
48,65 ...
α
44,00 MHz
∆α
46,40 MHz
α_rel
40,75 MHz
41,31 MHz
41,43 MHz
41,60 MHz
46,40 MHz
46,57 MHz
46,69 MHz
47,25 MHz
39,10 MHz
40,35 MHz
48,65 MHz
55,00 MHz
min.
18,5
—
25,0
1,1
–0,4
–0,4
–0,4
0,1
1,5
25,0
34,0
27,0
25,0
32,0
typ.
20,0
max.
21,5 dB
0,4
— dB
32,0
— dB
1,6
2,1 dB
0,3
1,0 dB
0,1
0,6 dB
0,1
0,6 dB
0,6
1,1 dB
2,0
2,5 dB
36,0
— dB
42,0
— dB
32,0
— dB
30,0
— dB
37,0
— dB
Reflected wave signal suppression
1,5 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 44,00 MHz)
42,0
56,0
— dB
Group delay ripple (p-p)
∆τ
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
TC_f
—
30
80 ns
—
1,9 || 22,2 — kΩ || pF
—
6,1 || 5,7 _{— kΩ || pF}
—
–18
— ppm/K
Matching network:
3 Dec 08, 2003
L_p1 = 1800 nH