SAW Components
SAW IF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
B1708
72.54 MHz
T = –40 ˚C to (+85 ˚C) +105 ˚C
ZS = 27 Ω and matching network
ZL = 1 kΩ and matching network
Nominal frequency
min.
typ.
max.
@ 25 ˚C
fN
—
72.54
—
MHz
Minimum insertion attenuation1)
αmin
—
14.5
16.0 dB
Maximum voltage gain source – load
(VL/VS)
αvgsl
–4.2
–2.7
—
dB
Amplitude ripple (p-p)
∆α
fN ± 1.85 MHz
—
1.0 (1.3) 1.5 dB
Pass bandwidth
αrel ≤ 1.5 dB
αrel ≤ 3 dB
αrel ≤ 15 dB
αrel ≤ 30 dB
B1.5dB
—
B3dB
—
B15dB
—
B30dB
—
4.0
—
MHz
4.3
—
MHz
5.7
5.9 MHz
6.6
7.0 MHz
Mean attenuation (relative to αmin)
αrel
Upper sidelobe 86.47 ... 91.53 MHz
48.0
53.0
—
dB
Relative attenuation (relative to αmin) αrel
Lower sidelobe 50.00 ... 65.00 MHz
40.0
44.0
—
dB
65.00 ... 66.48 MHz
33.0
38.0
—
dB
66.48 ... 68.08 MHz
32.0
36.0
—
dB
Upper sidelobe 77.30 ... 78.60 MHz
32.0
36.0
—
dB
78.60 ... 86.47 MHz
36.0
41.0
—
dB
86.47 ... 91.53 MHz
44.0
48.0
—
dB
91.53 ... 95.21 MHz
44.0
48.0
—
dB
95.21 ... 100.00 MHz
46.0
50.0
—
dB
Group delay ripple (p–p)
∆τ
Aperture 50 kHz
fN ± 1.85 MHz
—
210
Temperature coefficient of frequency TCf
—
–18
1) Including losses in the matching network
—
ns
—
ppm/K
Please read cautions and warnings and
important notes at the end of this document.
3 May 16, 2006