B3776 EPCOS [EPCOS], B3776 Datasheet - Page 3

• Manufacturer Part Number: B3776
• Description: SAW filter Short range devices
• Manufacturer: EPCOS [EPCOS]

Data sheet
Characteristics
Temperature for specification:
Terminating source impedance:
Terminating load impedance:
Relative attenuation (relative to
1)
Please read cautions and warnings and
important notes at the end of this document.
Center frequency
Minimum insertion attenuation
incl. loss in matching elements (Q
excl. loss in matching elements
Maximum insertion attenuation
incl. loss in matching elements (Q
excl. loss in matching elements
Impedance for pass band matching
SAW Components
SAW filter
impedance (here 50 Ohm). After removal of the SAW filter the input impedance of the input and output match-
ing network is calculated. The conjugate complex value of these characteristic impedances are the input and
output impedances for flat passband. For more details we refer to EPCOS application note #4.
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load
Input:
Output: Z
868.15 ... 868.45 MHz
620.00 ... 680.00 MHz
680.00 ... 855.00 MHz
855.00 ... 864.00 MHz
864.00 ... 867.20 MHz
867.20 ... 867.60 MHz
867.60 ... 867.90 MHz
869.50 ... 876.00 MHz
876.00 ... 883.00 MHz
883.00 ... 900.00 MHz
900.00 ... 1500.00 MHz
10.00 ... 620.00 MHz
Z
IN
OUT
= R
= R
IN
OUT
|| C
|| C
min
L
L
= 57)
= 57)
1)
)
IN
OUT
f
C
T
Z
Z
min
max
rel
S
L
3
= 25 ˚C
=
=
May 24, 2007
50
50
min.
48
40
48
25
17
11
12
32
45
50
—
—
—
—
—
—
—
—
and matching network
and matching network
450 || 0.9
450 || 0.9
868.30
typ.
3.6
2.7
4.1
3.2
53
44
52
29
20
20
15
37
50
55
3
max.
4.2
3.3
5.1
4.2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
868.30 MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
B3776
|| pF
|| pF