B39460-B3856-U210 查看數據表（PDF） - EPCOS AG
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B39460-B3856-U210 Datasheet PDF : 5 Pages
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SAW Components
Vestigial Sideband Filter
Data Sheet
Characteristics
Operating temperature:
Terminating source impedance:
Terminating load impedance:
Group delay aperture
Nominal frequency
B3856
45,75 MHz
T=
ZS =
ZL =
50 ˚C
50 Ω
50 Ω
80 kHz
(see annotation)
min.
typ.
fN
—
45,75
max.
— MHz
Insertion attenuation at fN
αN
—
Amplitude ripple (p-p)
∆α
41,55 … 46,25 MHz
—
33,5
34,5 dB
0,4
1,0 dB
Relative attenuation (relative to αN)
αrel
41,25 MHz
46,50 MHz
47,00 MHz
25,00 … 39,00 MHz
39,00 … 40,00 MHz
47,25 … 49,00 MHz
49,00 … 53,00 MHz
53,00 … 59,25 MHz
59,25 … 80,00 MHz
80,00 … 100,00 MHz
—
0,0
—
1,5
12,0
17,0
36,0
43,0
30,0
38,0
30,0
37,0
32,0
42,0
36,0
46,0
30,0
40,0
16,0
19,0
1,0 dB
2,5 dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dB
Reflected wave signal suppression
1,70 µs … 5,50 µs after main pulse
1,84 µs … 1,70 µs before main pulse
40,0
45,0
— dB
45,0
51,0
— dB
Group delay at fN
τN
—
Group delay (relative to τN)
τrel
41,57 MHz
—
42,17 MHz
—
42,75 … 46,50 MHz
—
Temperature coefficient of frequency
TCf
—
Annotation:
For 25˚C all frequencies should be multiplied by 1,002175
e.g. 41,25 MHz (50˚C)*1,002175 = 41,3397 MHz (25˚C)
1,8
— µs
-340,0
-170,0
0,0
– 87
—
—
±75,0
—
ns
ns
ns
ppm/K
3 Jul 18, 2002
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