X6864D Datasheet, PDF (3/6 Pages) EPCOS – SAW Components Bandpass Filter

SAW Components
Bandpass Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
T_A = 25 (45) ˚C
Z_S = 50 Ω
Z_L = 2 kΩ || 3 pF
Center frequency
f_C
(center between 10 dB points)
Insertion attenuation
α
Reference level for the
43,81 (43,75) MHz
following data
Pass bandwith
α_rel ≤3 dB
α_rel ≤30 dB
Relative attenuation
B_3dB
B_30dB
α_rel
40,71 (40,65) MHz
46,91 (46,85) MHz
Lower sidelobe
35,06 ... 39,06 (35,00 ... 39,00) MHz
39,06 ... 39,76 (39,00 ... 39,70) MHz
Upper sidelobe
47,86 ... 49,66 (47,80 ... 49,60) MHz
49,66 ... 55,06 (49,60 ... 55,00) MHz
Reflected wave signal suppression
1,3 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 43,81 MHz)
Feedthrough signal suppression
1,3 µs ... 1,2 µs before main pulse
(test pulse 250 ns,
carrier frequency 43,81 MHz)
Group delay ripple (p-p)
∆τ
Aperture 50 kHz
40,71 ... 46,91 (40,65 ... 46,85) MHz
Impedance at 43,81 MHz
Input: Z_IN = R_IN || C_IN
Output: Z_OUT = R_OUT || C_OUT
Temperature coefficient of frequency
TC_f
min.
—
13,7
—
—
—
—
40,0
38,0
38,0
41,0
42,0
50,0
—
—
—
—
X 6864 D
43,75 MHz
typ.
max.
(43,75) — MHz
15,2
16,7 dB
6,2
— MHz
7,6
— MHz
3,0
— dB
2,2
— dB
46,0
— dB
45,0
— dB
44,0
— dB
47,0
— dB
52,0
— dB
56,0
— dB
40
— ns
1,3 || 16,1 — kΩ || pF
1,1 || 5,5 _{— kΩ || pF}
–72
— ppm/K
3 Dec 08, 2003