B3893 Просмотр технического описания (PDF) - EPCOS AG
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B3893 Datasheet PDF : 5 Pages
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SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
Nominal frequency
T = -20 ˚C to 80 ˚C
ZS = 50 Ω
ZL = 200 Ω
min.
typ.
fN
—
248,6
Minimum insertion attenuation
(including losses in matching network)
αmin
—
1,3
Passband width
αrel ≤ 3,0 dB
B3,0dB
5,0
7,2
Amplitude ripple (p-p)
∆α
fN ± 120,0 kHz
—
0,2
Group delay ripple (p-p)
∆τ
fN ± 120,0 kHz
—
30
Relative attenuation (relative to αmin)
αrel
10,0 MHz
... fN - 29,2 MHz
45
70
@ fN + 22,80 MHz
45
60
@ fN + 52,00 MHz
45
70
@ fN + 74,80 MHz
45
70
@ fN + 104,0 MHz
45
55
@ fN + 126,8 MHz
45
70
Temperature coefficient of frequency
TCf
—
–36
B3893
248,6 MHz
max.
— MHz
3,5 dB
— MHz
0,5 dB
100 ns
— dB
— dB
— dB
— dB
— dB
— dB
— ppm/K
3 Jul 16, 2004
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