X6922D Datasheet, PDF (3/6 Pages) EPCOS – Bandpass Filter

SAW Components
Bandpass Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Center frequency
(center between 10 dB points)
X 6922 D
38,912 MHz
T_A = 25 (45) ˚C
Z_S = 50 Ω
Z_L = 2 kΩ || 3 pF
min.
typ.
max.
f_c
(38,874) (38,912) (38,950) MHz
Insertion attenuation
Reference level for the
following data
α
38,922 (38,912) MHz
17,2
18,7
20,2 dB
Pass bandwidth
α_rel ≤ 3 dB
α_rel ≤ 30 dB
B_3dB
—
B_30dB
—
Relative attenuation
α_rel
36,27 ... 37,31 (36,26 ... 37,30) MHz
38,0
40,61 ... 41,41 (40,60 ... 41,40) MHz
38,0
Lower sidelobe (incl. second adjacent channel)
30,01 ... 36,27 (30,00 ... 36,26) MHz
43,0
Upper sidelobe (incl. second adjacent channel)
41,41 ... 50,01 (41,40 ... 50,00) MHz
42,0
Reflected wave signal suppression
1,6 µs ... 6,0 µs after main pulse
42,0
(test pulse 250 ns, carrier frequency 38,922 MHz)
1,5
2,7
41,0
44,0
50,0
47,0
52,0
— MHz
— MHz
— dB
— dB
— dB
— dB
— dB
Group delay ripple (p-p)
∆τ
38,12 ... 39,72 (38,11 ... 39,71) MHz
Impedance at 38,922 MHz
Input: Z_IN = R_IN || C_IN
Output: Z_OUT = R_OUT || C_OUT
Temperature coefficient of frequency
TC_f
—
35
— ns
—
1,0 ||25,3
— kΩ || pF
—
0,9 ||15,0
— kΩ || pF
—
–18
— ppm/K
3 Feb 10, 2004