SAW Components
SAW RF filter
Short range devices
Series/type:
Ordering code:
Date:
Version:
B3725
B39871B3725U410
January 19, 2009
2.0
©
EPCOS AG 2009. 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 RF filter
Data sheet
Application
s
s
s
s
s
B3725
869.0 MHz
Low-loss RF filter for remote control receivers
Unbalanced to unbalanced operation
No matching network required for operation at 50
Ω
Low amplitude ripple
Usable passband 2 MHz
Features
s
s
s
s
s
s
s
s
Package size 3 x 3 x 1.1 mm
3
Package code DCC6C
RoHS compatible
Approximate weight 0.037 g
Package for
Surface Mount Technology
(SMT)
Ni, gold-plated terminals
Filter surface passivated
Electrostatic Sensitive Device
(ESD)
Pin configuration
s
2
s
5
s
1,3,4,6
Input
Output
Ground
Please read
cautions and warnings and
important notes
at the end of this document.
2
January 19, 2009
SAW Components
SAW RF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –20 ˚C to +70 ˚C
Z
S
=
50
Ω
Z
L
=
50
Ω
min.
Center frequency
Maximum insertion attenuation
868.0 ... 870.0
Amplitude ripple
(p-p)
868.0 ...
f
C
α
max
MHz
∆α
870.0
MHz
—
0.3
1.3
dB
—
2.5
3.5
dB
—
typ.
@ 25 ˚C
869.0
max.
—
MHz
B3725
869.0 MHz
Return loss (input / output)
868.0 ... 870.0
Attenuation
10.0
300.0
845.0
879.0
883.0
915.0
945.0
1200.0
... 300.0
... 845.0
... 853.0
... 883.0
... 915.0
... 945.0
... 1200.0
... 2000.0
MHz
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
10
20
—
dB
45
40
38
20
45
40
45
35
50
45
41
30
55
45
55
40
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
Please read
cautions and warnings and
important notes
at the end of this document.
3
January 19, 2009
SAW Components
SAW RF filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –40 ˚C to +85 ˚C
Z
S
=
50
Ω
Z
L
=
50
Ω
min.
Center frequency
Maximum insertion attenuation
868.0 ... 870.0
Amplitude ripple
(p-p)
868.0 ...
f
C
α
max
MHz
∆α
870.0
MHz
—
0.3
1.7
dB
—
2.5
4.0
dB
—
typ.
@ 25 ˚C
869.0
max.
—
MHz
B3725
869.0 MHz
Return loss (input / output)
868.0 ... 870.0
Attenuation
10.0
300.0
845.0
879.0
883.0
915.0
945.0
1200.0
... 300.0
... 845.0
... 853.0
... 883.0
... 915.0
... 945.0
... 1200.0
... 2000.0
MHz
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
10
20
—
dB
45
40
38
15
45
40
45
35
50
45
41
30
55
45
55
40
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
Source power
868 MHz to 870 MHz
T
T
stg
V
DC
P
s
P
s
–45/+125
–45/+125
0
13
18
˚C
˚C
V
dBm
dBm
source impedance 50
Ω
duty cycle 1:10,
-40 ˚C to +85 ˚C
Please read
cautions and warnings and
important notes
at the end of this document.
4
January 19, 2009
SAW Components
SAW RF filter
Data sheet
Transfer function
B3725
869.0 MHz
Transfer function (wide band)
Please read
cautions and warnings and
important notes
at the end of this document.
5
January 19, 2009
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