
3
Oct 23, 2000
SAW Components
Low-Loss Filter
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
B3666
82,20 MHz
T
Z
S
= 50
unbalanced and matching network
Z
L
= 50
unbalanced and matching network
= -10 ... +80 C
1)
Temperature dependance of f
c
:
f
c
(T) = f
c
(T
0
)(1 + TC
f
(T – T
0
)
2
)
min.
—
typ.
max.
—
Nominal frequency
f
N
82,2
MHz
Minimum insertion loss
α
min
—
3,7
5,0
dB
3dB bandwidth
30
50
—
kHz
Amplitude variation
(p-p)
f
N
- 15 kHz ... f
N
+ 15 kHz
Amplitude ripple
(peak to adjacent valley)
f
N
- 15 kHz ... f
N
+ 15 kHz
α
—
0,9
3,0
dB
α
—
0,0
1,5
dB
Absolute group delay
(at f
N
)
τ
—
16
—
μ
s
Group delay ripple
(p-p)
f
N
- 11 kHz ... f
N
+ 11 kHz
τ
—
1,6
10
μ
s
Relative attenuation
(relative to
α
min
)
f
N
1000 kHz ... f
N
925 kHz
f
N
925 kHz ... f
N
885 kHz
f
N
885 kHz ... f
N
700 kHz
f
N
700 kHz ... f
N
400 kHz
f
N
400 kHz ... f
N
120 kHz
f
N
120 kHz ... f
N
60 kHz
f
N
+
60 kHz ... f
N
+
120 kHz
f
N
+
120 kHz ... f
N
+
150 kHz
f
N
+
150 kHz ... f
N
+
400 kHz
f
N
+
400 kHz ... f
N
+
1000 kHz
α
rel
40
70
40
30
40
20
20
40
30
40
70
75
70
65
60
34
29
57
55
55
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Intermodulation distortion
Intermodulation in the composit signal by f
N
±
60
kHz and f
N
±
120 kHz, each of -20 dBm
—
-90
dB
Temperature coefficient of frequency
1)
TC
f
T
0
—
– 0,036
—
ppm/K
2
Turnover temperature
—
30
—
C