3 May 06, 2004
SAW Components B3874
71,1 MHzLow-Loss Filter
Data Sheet
Characteristics
Operating temperature range: T = 0 to +85 ˚C
Terminating source impedance:
Z
S
= 50 Ω and external matching network
Terminating load impedance:
Z
L
= 50 Ω and external matching network
1)
Temperature dependance of
f
c
:
f
c
(
T
A
) =
f
c
(
T
0
)(1 +
TC
f
(
T
A
–
T
0
)
2
)
min. typ. max.
Nominal frequency
f
N
— 71,1 — MHz
Minimum insertion attenuation α
N
— 9,0 11,0 dB
3,75 dB bandwidth
α
rel
≤ 3,75 dB
B
3,75dB
1,18 1,24 — MHz
Amplitude ripple (p-p)
f
N
± 525 kHz ∆α — 0,5 1,0 dB
Phase Linearity (rms)
f
N
± 630 kHz ∆ϕ — 1,3 2,0 deg
Absolute group delay
f
N
± 630 kHz τ — 3,1 — µs
Group delay ripple (p-p)
f
N
± 525 kHz ∆τ — 320 450 ns
Relative attenuation (relative to α
N
) α
rel
31,0 MHz ...
f
N
− 4900 kHz 45 60 — dB
f
N
− 4900 kHz ...
f
N
− 900 kHz 26 29 — dB
f
N
− 900 kHz ...
f
N
− 750 kHz 15 18 — dB
f
N
+ 750 kHz ...
f
N
+ 900 kHz 15 17 — dB
f
N
+ 900 kHz ...
f
N
+ 4900 kHz 26 29 — dB
f
N
+ 4900 kHz ... 500 MHz 45 60 — dB
Input Return loss
f
N
± 525 kHz 8 11 — dB
Output Return loss
f
N
± 525 kHz 10 15 — dB
3rd-order intercept point
IP3
35 — — dB
Temperature coefficient of frequency
1)
TC
f
— –0,036 — ppm/K
2
Turnover temperature
T
0
—35 —˚C
