SAW Components
SAW IF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
Nominal frequency
Minimum insertion attenuation1)
B1708
72.54 MHz
T = –40 ˚C to +85 ˚C
ZS = 50 Ω (single ended) and matching network
ZL = 50 Ω (single ended) and matching network
min.
typ.
max.
@ 25 ˚C
fN
—
72.54
—
MHz
αmin
—
12.9
14.4 dB
Amplitude ripple (p-p)
∆α
fN ± 1.85 MHz
Pass bandwidth
αrel ≤ 1.5 dB
αrel ≤ 3 dB
αrel ≤ 15 dB
αrel ≤ 30 dB
B1.5dB
B3dB
B15dB
B30dB
Mean attenuation (relative to αmin)
αrel
Upper sidelobe 86.47 ... 91.53 MHz
Relative attenuation (relative to αmin) αrel
Lower sidelobe 50.00 ... 65.00 MHz
65.00 ... 66.48 MHz
66.48 ... 68.08 MHz
Upper sidelobe 77.30 ... 78.60 MHz
78.60 ... 86.47 MHz
86.47 ... 91.53 MHz
91.53 ... 95.21 MHz
95.21 ... 100.00 MHz
Group delay ripple (p–p)
∆τ
Aperture 50 kHz
fN ± 1.85 MHz
Temperature coefficient of frequency TCf
1) Including losses in the matching network
—
—
—
—
—
48.0
34.0
36.0
34.0
28.0
34.0
42.0
44.0
48.0
—
—
1.2
4.0
4.4
5.8
6.7
52.0
38.0
42.0
38.0
32.0
39.0
46.0
48.0
53.0
190
–18
1.5 dB
—
MHz
—
MHz
6.0 MHz
7.0 MHz
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
dB
—
ns
—
ppm/K
Please read cautions and warnings and
important notes at the end of this document.
6 May 16, 2006