3Nov 28, 2002
SAW Components (B3578)
463,70 MHzLow-loss Filter
Data Sheet
Characteristics
Reference temperature:
T
A= -40 ... 95 ˚C
Terminating source impedance:
Z
S= 50 Ωand matching network
Terminating load impedance:
Z
L= 50 Ωand matching network
1)Temperature dependence of
f
C
:
f
C
(
T
A) =
f
C
(
T
0
) (1 +
TC
f(
T
A –
T
0
)2)
min. typ. max.
Center frequency
f
C
— 463,70 — MHz
(center frequency between 3 dB points)
Minimum insertion attenuation αmin
463,57 ... 463,83 MHz — 1,9 3,2 dB
Pass band (relative to αmin)
463,57 ... 463,83 MHz — 0,8 2,0 dB
463,52 ... 463,88 MHz — 1,0 3,0 dB
Relative attenuation (relative to αmin)αrel
10,00 ... 443,00 MHz 48 53 — dB
443,00 ... 453,50 MHz 44 49 — dB
453,50 ... 461,70 MHz 30 35 — dB
461,70 ... 462,70 MHz 12 15 — dB
464,70 ... 471,70 MHz 15 18 — dB
471,70 ... 550,00 MHz 40 45 — dB
550,00 ...1000,00 MHz 45 50 — dB
Impedance for pass band matching
Input:
Z
IN =
R
IN ||
C
IN — 168 ||2,60 — Ω || pF
Output:
Z
OUT =
R
OUT ||
C
OUT —164 ||2,80 —Ω || pF
Temperature coefficient of frequency 1)
TC
f— –0,03 — ppm/K2
Frequency inversion point
T
0
5—25°C