®
RF360 Europe GmbH
A Qualcomm – TDK Joint Venture
SAW Components
SAW filter
Short range devices
Series/type:
Ordering code:
Date:
Version:
B3781
B39321B3781Z810
December 20, 2012
2.1
RF360 products mentioned within this document are offered by RF360 Europe GmbH and other subsidiaries of
RF360 Holdings Singapore Pte. Ltd. (collectively, the “RF360 Subsidiaries”). RF360 Holdings Singapore Pte. Ltd.
is a joint venture of Qualcomm Global Trading Pte. Ltd. and EPCOS AG. References in this documentation to
EPCOS AG should properly reference, and shall be read to reference, the RF360 Subsidiaries.
RF360 Europe GmbH, Anzinger Str. 13, München, Germany
© 2016 RF360 Europe GmbH and/or its affiliated companies. All rights reserved.
These materials, including the information contained herein, may be used only for informational purposes by
the customer. The RF360 Subsidiaries assume no responsibility for errors or omissions in these materials or
the information contained herein. The RF360 Subsidiaries reserve the right to make changes to the product(s)
or information contained herein without notice. The materials and information are provided on an AS IS basis,
and the RF360 Subsidiaries assume no liability and make no warranty or representation, either expressed or
implied, with respect to the materials, or any output or results based on the use, application, or evaluation of
such materials, including, without limitation, with respect to the non-infringement of trademarks, patents,
copyrights or any other intellectual property rights or other rights of third parties.
No use of this documentation or any information contained herein grants any license, whether express, implied,
by estoppel or otherwise, to any intellectual property rights, including, without limitation, to any patents owned
by QUALCOMM Incorporated or any of its subsidiaries.
Not to be used, copied, reproduced, or modified in whole or in part, nor its contents revealed in any manner to
others without the express written permission of RF360 Europe GmbH.
Qualcomm and Qualcomm RF360 are trademarks of Qualcomm Incorporated, registered in the United States
and other countries. RF360 is a trademark of Qualcomm Incorporated. Other product and brand names may be
trademarks or registered trademarks of their respective owners.
This technical data may be subject to U.S. and international export, re-export, or transfer (“export”) laws.
Diversion contrary to U.S. and international law is strictly prohibited.
SAW Components
SAW filter
Short range devices
Series/type:
Ordering code:
Date:
Version:
B3781
B39321B3781Z810
December 20, 2012
2.1
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
SAW Components
SAW filter
Data sheet
Application
s
Low-loss RF filter for remote control receivers
s
Balanced and unbalanced operation possible
B3781
315.00 MHz
Features
s
s
s
s
s
s
s
s
s
s
Package size 3.8 x 3.8 x 1.5 mm
3
Package code QCC8B
RoHS compatible
Approximate weight 0.07 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
s
1
2
5
6
4,8
3,7
Input ground (recommended) or input
Input (recommended) or input ground
Output (recommended) or output ground
Output ground (recommended) or output
Case - ground
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 20, 2012
SAW Components
SAW filter
Data sheet
Characteristics
Temperature range for specification:
Terminating source impedance:
Terminating load impedance:
T = –40 ˚C to +85 ˚C
Z
S
=
50
Ω
and matching network
Z
L
=
50
Ω
and matching network
min.
Center frequency
Minimum insertion attenuation
incl. loss in matching elements
excl. loss in matching elements
Pass band (relative to
α
min
)
314.725 ... 315.275MHz
Filter bandwidth
α
rel
≤ 3
dB
Relative attenuation (relative to
α
min
)
α
rel
10.00 ... 294.50 MHz
294.50 ... 304.50 MHz
304.50 ... 312.80 MHz
312.80 ... 313.20 MHz
313.20 ... 314.30 MHz
316.00 ... 323.00 MHz
323.00 ... 335.00 MHz
335.00 ... 600.00 MHz
600.00 ... 1000.00 MHz
1000.00 ... 2500.00 MHz
Impedance
for pass band matching
1)
Input: Z
IN
= R
IN
|| C
IN
Output: Z
OUT
= R
OUT
|| C
OUT
1)
B3781
315.00 MHz
f
C
α
min
—
typ.
@ 25 ˚C
315.00
max.
—
MHz
—
—
1.8
1.1
2.5
2.0
dB
dB
—
0.9
3.0
dB
0.69
0.76
0.83
MHz
47
42
21
33
6
10
34
43
60
43
51
46
28
40
9
14
40
48
70
48
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
—
—
410 || 2.6
410 || 2.6
—
—
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.
Maximum ratings
Operable temperature range T
Storage temperature range T
stg
DC voltage
Source power
V
DC
P
S
–45/+125 ˚C
–45/+125 ˚C
6
10
V
dBm
source impedance 50
Ω
Please read
cautions and warnings and
important notes
at the end of this document.
3
December 20, 2012
京公网安备 11010802033920号
EEWORLD
