SAW Components
SAW IF filter
B1728
72.54 MHz
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T
= –40 ˚C to +85 ˚C
ZS = 50 Ω (single ended) and matching network
ZL = 50 Ω (single ended) and matching network
min.
—
typ.
@ 25 ˚C
72.54
max.
—
Nominal frequency
fN
MHz
dB
Minimum insertion attenuation1)
αmin
—
12.9
14.4
Amplitude ripple (p-p)
∆α
fN ± 1.85 MHz
—
1.2
1.5
dB
Pass bandwidth
αrel ≤ 1.5 dB
αrel ≤ 3 dB
B1.5dB
B3dB
B15dB
B30dB
—
—
—
—
4.0
4.4
5.8
6.7
—
—
6.0
7.0
MHz
MHz
MHz
MHz
αrel ≤ 15 dB
αrel ≤ 30 dB
Mean attenuation (relative to αmin
)
αrel
Upper sidelobe 86.47 ...
91.53 MHz
48.0
52.0
—
dB
Relative attenuation (relative to αmin
)
αrel
Lower sidelobe 50.00 ...
65.00 ...
66.48 ...
Upper sidelobe 77.30 ...
78.60 ...
65.00 MHz
66.48 MHz
68.08 MHz
78.60 MHz
86.47 MHz
91.53 MHz
95.21 MHz
34.0
36.0
34.0
28.0
34.0
42.0
44.0
48.0
38.0
42.0
38.0
32.0
39.0
46.0
48.0
53.0
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
86.47 ...
91.53 ...
95.21 ... 100.00 MHz
Group delay ripple (p–p)
Aperture 50 kHz
Temperature coefficient of frequency
∆τ
fN ± 1.85 MHz
—
—
190
–18
—
—
ns
TCf
ppm/K
1)
Including losses in the matching network
Please read cautions and warnings and
important notes at the end of this document.
6
February 19, 2010
EPCOS [ EPCOS ]
