B801 Datasheet, PDF (4/9 Pages) EPCOS – Satellite Receiver Filter

SAW Components
Satellite Receiver Filter
Data Sheet
Characteristics of channel 2
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture
T_A = 25 ˚C
Z_S = 50 Ω
Z_L = 50 Ω
0,25MHz
Insertion attenuation
Reference level for the
following data
479,50 MHz α
min.
—
B 801
479,50 MHz
typ.
22,3
max.
25 dB
Center frequency
f_c
Pass bandwidth
α_rel≤ 3 dB B_3dB
Relative attenuation
Lower sidelobe
Upper sidelobe
α_rel
470,50 MHz
488,50 MHz
430,00 … 457,50 MHz
500,50 … 530,00 MHz
478,50 479,50 480,50 MHz
—
18,0
— MHz
—
2,9
4,7 dB
—
2,9
4,4 dB
36,0
43,0
— dB
34,0
41,0
— dB
Reflected wave signal suppression
0,13 µs … 2,0 µs after main pulse
40,0
45,0
— dB
Amplitude ripple (p–p)
∆α
476,00 ... 483,00 MHz
—
0,2
0,6 dB
Group delay ripple (p–p)
∆τ
470,50 ... 488,50 MHz
—
11
18 ns
Impedance at 479,50 MHz
Input: Z_OUT = R_OUT || C_OUT
Output: Z_OUT = R_OUT || C_OUT
Temperature coefficient of frequency
TC_f
—
0,59|| 3,5
— kΩ || pF
—
0,06|| 5,6
— kΩ || pF
—
– 86
— ppm/K
4 Nov 20, 2002