B5045 Datasheet, PDF (3/7 Pages) EPCOS – GSM base station

SAW Components
SAW IF filter
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
Nominal frequency
Minimum insertion attenuation
(including matching network)
B5045
201.0 MHz
T = 0 to 70 ˚C
Z_S = 200 Ω balanced and matching network
Z_L = 200 Ω balanced and matching network
min.
typ.
max.
@ 25 ˚C
f_N
—
201.0
— MHz
α_min
—
4.4
5.5 dB
Passband width
α_rel ≤ 1 dB
B_1.0dB
—
Amplitude ripple (p-p)
f_N ± 110 kHz
∆α
—
Group delay ripple (p-p)
f_N ± 110 kHz
∆τ
—
Absolute group delay
at f_N
τ
1.7
Relative attenuation (relative to α_min)
f_N ± 300 kHz ... f_N ± 400 kHz
f_N ± 400 kHz ... f_N ± 600 kHz
f_N ± 600 kHz ... f_N ± 800 kHz
f_N ± 800 kHz ... f_N ± 35 MHz
α_rel
16
27
28
38
Impulse response attenuation (relative to max.)
> 3 µs after main lobe
10
> 30 µs after main lobe
50
290
0.6
1.0
1.95
25
30
35
45
12
60
— kHz
1.0 dB
1.5 µs
2.2 µs
— dB
— dB
— dB
— dB
— dB
— dB
IM3 level (Input level -17 dBm)
f_N ± 800 kHz
f_N ± 1600 kHz
—
—
-110 dB
—
—
-110 dB
Temperature coefficient of frequency¹⁾
Turnover temperature
TC_f
—
T₀
—
1) _{Temperature dependance of fc: fc(TA) = fc(T0) (1 + TCf(TA – T0)}2₎
–0.036
35
— ppm/K²
— ˚C
Please read cautions and warnings and
important notes at the end of this document.
3 January 12, 2009