SAW Components
SAW filter
Short range devices
Series/type:
Ordering code:
Date:
Version:
B3739
B39311B3739H110
December 14, 2012
2.3
©
EPCOS AG 2012. Reproduction, publication and dissemination of this data sheet, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
SAW Components
SAW filter
Data sheet
Application
s
Low-loss RF filter for remote control receivers
s
Balanced and unbalanced operation possible
B3739
314.90 MHz
Features
s
s
s
s
s
s
s
s
s
s
Package size 3.0 x 3.0 x 1.0 mm
3
Package code DCC6E
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Lead free soldering compatible with J - STD20C
Passivation layer Elpas
AEC-Q200 qualified component family
Electrostatic Sensitive Device
(ESD)
Pin configuration
1)
s
s
s
s
s
1
2
4
5
3,6
Input (recommended) or input ground
Input ground (recommended) or input
Output (recommended) or output ground
Output ground (recommended) or output
To be grounded
1) The recommended pin configuration usually offers best
suppression of electrical crosstalk. The filter characteris-
tics refer to this configuration.
Please read
cautions and warnings and
important notes
at the end of this document.
2
December 14, 2012
SAW Components
SAW filter
Data sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = –45 ˚C to +95 ˚C
50
Ω
and matching network
Z
S
=
Z
L
=
50
Ω
and matching network
min.
Center frequency
Minimum insertion attenuation
incl. loss in matching elements (Q
L
= 42)
excl. loss in matching elements
Pass band (relative to
α
min
)
314.75 ... 315.05 MHz
314.72 ... 315.08 MHz
314.68 ... 315.12 MHz
Filter bandwidth
α
rel
≤ 3
dB
Relative attenuation (relative to
α
min
)
α
rel
10.00 ... 295.00 MHz
295.00 ... 307.00 MHz
307.00 ... 313.00 MHz
313.00 ... 313.90 MHz
315.90 ... 325.00 MHz
325.00 ... 336.00 MHz
336.00 ... 370.00 MHz
370.00 ... 600.00 MHz
600.00 ... 1500.00 MHz
1500.00 ... 2500.00 MHz
Impedance
for pass band matching
1)
Input: Z
IN
= R
IN
|| C
IN
Output: Z
OUT
= R
OUT
|| C
OUT
1)
B3739
314.90 MHz
f
C
α
min
—
typ.
@ 25 ˚C
314.90
max.
—
MHz
—
—
2.3
1.3
3.2
2.2
dB
dB
—
—
—
0.6
0.8
1.2
2.0
3.0
6.0
dB
dB
dB
0.57
0.63
0.69
MHz
48
43
32
25
10
38
42
52
60
55
53
48
36
29
14
43
46
57
65
60
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
610 || 2.2
610 || 2.2
—
—
Ω
|| pF
Ω
|| pF
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load
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.
Please read
cautions and warnings and
important notes
at the end of this document.
3
December 14, 2012
SAW Components
SAW filter
Data sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
T = –45 ˚C to +125 ˚C
50
Ω
and matching network
Z
S
=
Z
L
=
50
Ω
and matching network
min.
Center frequency
Minimum insertion attenuation
incl. loss in matching elements (Q
L
= 42)
excl. loss in matching elements
Pass band (relative to
α
min
)
314.75 ... 314.98 MHz
314.72 ... 315.01 MHz
314.68 ... 315.05 MHz
Filter bandwidth
α
rel
≤ 3
dB
Relative attenuation (relative to
α
min
)
α
rel
10.00 ... 295.00 MHz
295.00 ... 307.00 MHz
307.00 ... 313.00 MHz
313.00 ... 313.90 MHz
315.90 ... 325.00 MHz
325.00 ... 336.00 MHz
336.00 ... 370.00 MHz
370.00 ... 600.00 MHz
600.00 ... 1500.00 MHz
1500.00 ... 2500.00 MHz
Impedance
for pass band matching
1)
Input: Z
IN
= R
IN
|| C
IN
Output: Z
OUT
= R
OUT
|| C
OUT
1)
B3739
314.90 MHz
f
C
α
min
—
typ.
@ 25 ˚C
314.90
max.
—
MHz
—
—
2.3
1.3
3.2
2.2
dB
dB
—
—
—
0.6
0.8
1.2
2.0
3.0
6.0
dB
dB
dB
0.57
0.63
0.69
MHz
48
43
32
22
10
38
42
52
60
55
53
48
36
29
14
43
46
57
65
60
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
610 || 2.2
610 || 2.2
—
—
Ω
|| pF
Ω
|| pF
Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load
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.
Please read
cautions and warnings and
important notes
at the end of this document.
4
December 14, 2012
SAW Components
SAW filter
Data sheet
B3739
314.90 MHz
Maximum ratings
Operable temperature range T
Storage temperature range
DC voltage
Source power
T
stg
V
DC
P
S
–45/+125 ˚C
–45/+125 ˚C
6
V
10
dBm
source impedance 50
Ω
Please read
cautions and warnings and
important notes
at the end of this document.
5
December 14, 2012
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