B3780 EPCOS AG, B3780 Datasheet - Page 3

• Manufacturer Part Number: B3780
• Description: Front-end Filters Narrow-band
• Manufacturer: EPCOS AG

Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
1)
2)
Maximum ratings
Please read cautions and warnings and
important notes at the end of this document.
Center frequency
Minimum insertion attenuation
incl. loss in matching elements
excl. loss in matching elements
Pass band (relative to
Filter bandwidth
Relative attenuation (relative to
Impedance for pass band matching
Operable temperature range T
Storage temperature range
DC voltage
Source power
SAW Components
SAW filter
3.0dB for –40
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
˚C
1000.00 ... 2500.00 MHz
433.645 ... 434.165MHz
433.645 ... 434.195MHz
414.00 ... 425.00 MHz
425.00 ... 431.50 MHz
431.50 ... 433.00 MHz
434.92 ... 443.00 MHz
443.00 ... 530.00 MHz
530.00 ... 670.00 MHz
670.00 ... 830.00 MHz
830.00 ... 1000.00 MHz
to +85
10.00 ... 414.00 MHz
Z
IN
OUT
˚C
min
= R
= R
)
IN
OUT
T
V
P
stg
DC
S
rel
|| C
|| C
min
2)
IN
OUT
)
dB
–45/+125 ˚C
–45/+125 ˚C
f
C
10
rel
6
T
Z
Z
min
S
L
3
= –40 ˚C to +105 ˚C
=
=
V
dBm
July 24, 2008
min.
50
50
780
48
42
28
18
14
36
55
45
60
43
—
—
—
—
—
—
—
and matching network
and matching network
source impedance 50
@ 25 ˚C
330 || 1.9
330 || 1.9
433.92
typ.
850
2.0
1.6
0.9
0.9
53
47
33
21
18
41
60
50
65
48
max.
4.5
920
2.8
2.4
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
1)
433.92 MHz
MHz
dB
dB
dB
dB
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
B3780
|| pF
|| pF