B39431-B3770-Z810 EPCOS [EPCOS], B39431-B3770-Z810 Datasheet - Page 3

• Manufacturer Part Number: B39431-B3770-Z810
• Description: SAW Components Low-loss Filter 426,075 MHz
• Manufacturer: EPCOS [EPCOS]

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Center frequency
(center frequency between 3 dB points)
Minimum insertion attenuation
Pass band (relative to
Filter bandwidth
Relative attenuation (relative to
Impedance for pass band matching
1)
source- and to load impedance (here 50 Ohm). After the SAW filter is removed and input imped-
ance into the input matching / output matching network is calculated.
The conjugate complex value of these characteristic impedances are the input and output imped-
ances for flat passband. For more details, we refer to EPCOS application note #4.
SAW Components
Low-loss Filter
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to
including loss in matching elements
excluding loss in matching elements
Input:
Output: Z
1000,00 ...2500,00 MHz
426,00 ... 426,15 MHz
425,98 ... 426,17 MHz
425,94 ... 426,21 MHz
406,00 ... 415,66 MHz
415,66 ... 423,88 MHz
423,88 ... 424,28 MHz
424,28 ... 425,26 MHz
427,07 ... 434,00 MHz
434,00 ... 500,00 MHz
500,00 ... 690,00 MHz
690,00 ... 790,00 MHz
790,00 ...1000,00 MHz
min
Z
10,00 ... 406,00 MHz
IN
OUT
)
= R
= R
min
IN
OUT
1)
)
|| C
|| C
rel
IN
OUT
T
Z
Z
dB
A
S
L
3
= –45 ... +95˚C
= 50
= 50
f
C
min
rel
Nov 15, 2004
and matching network
and matching network
min.
0,62
52
48
27
26
17
17
38
50
45
60
55
—
—
—
—
—
—
—
—
250 || 2,4
250 || 2,4
426,075
0,68
typ.
1,9
1,6
0,5
0,7
1,0
56
52
32
35
21
20
43
55
50
65
60
max.
0,74
426,075 MHz
3,0
2,7
2,0
3,0
6,0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
B3770
MHz
dB
dB
dB
dB
dB
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
|| pF
|| pF