B3742 EPCOS [EPCOS], B3742 Datasheet - Page 3

• Manufacturer Part Number: B3742
• Description: SAW filter Short range devices
• Manufacturer: EPCOS [EPCOS]

Data sheet
Characteristics
Temperature range 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
excl. loss in matching elements
Pass band (relative to
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
1500.00 ... 2500.00 MHz
399.875 ... 400.125MHz
370.00 ... 390.00 MHz
390.00 ... 399.00 MHz
399.00 ... 399.30 MHz
400.70 ... 401.00 MHz
401.00 ... 408.00 MHz
408.00 ... 414.00 MHz
414.00 ... 468.00 MHz
468.00 ... 800.00 MHz
800.00 ... 1500.00 MHz
10.00 ... 370.00 MHz
Z
IN
OUT
min
= R
= R
)
IN
OUT
|| C
|| C
min
1)
)
IN
OUT
f
C
T
Z
Z
min
rel
S
L
3
= –40 ˚C to +105 ˚C
=
=
September 28, 2007
50
50
min.
55
50
22
15
15
22
35
45
50
60
50
—
—
—
—
—
—
and matching network
and matching network
@ 25 ˚C
380 || 2.2
380 || 2.2
400.00
typ.
2.3
1.8
0.6
60
55
27
25
21
27
40
50
55
65
55
max.
3.0
2.5
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
400.00 MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
B3742
|| pF
|| pF