®
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
Page 1 of 3
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1145B-121604
Notes:
1.
Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to
50
and measured with 50
network analyzer.
2.
Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3.
Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external impedance
matching design. See Application Note No. 42 for details.
4.
"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
5.
The design, manufacturing process, and specifications of this filter are subject to change.
6.
Tape and Reel Standard ANSI / EIA 481.
7.
Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port 2, so that
the filter must always be installed in one direction per the circuit design.
8.
US and international patents may apply.
9.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
10.
©Copyright 1999, RF Monolithics Inc.
11.
Electrostatic Sensitive Device. Observe precautions for handling.
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
Nominal Center Frequency
f
C
1
427.250
MHz
Passband
Insertion Loss at fc
IL
3.5
dB
1.5 dB Passband
BW
1
1, 2
±15
kHz
4.0 dB Passband
30
MHz
Group Delay Variation over fc ±250 kHz
GDV
177
250
ns
P-P
Rejection (referenced to fc=427.250 MHz)
fc±1.5 MHz
1, 2, 3
5
dB
fc±6.0 MHz
20
fc±50 MHz
50
Operating Temperature Range
T
A
1
-40
+85
°C
Differential Input and Output Impedance after matching
50 ohms
Case Style
6
SMP-03 7 x 5 mm Nominal Footprint
Lid Symbolization (YY=year, WW=week, S=shift) See note 4
RFM SF1145B YYWWS
SMP-03
·
Low Insertion Loss
·
5.0 X 7.0 mm Surface-Mount Case
·
Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Value
Units
Maximum Incident Power in Passband
+10
dBm
Max. DC voltage between any 2 terminals
30
VDC
Storage Temperature Range
-40 to +85
°C
Suitable for lead-free soldering - Max Soldering Profile
260°C for 30 s
427.250 MHz
SAW Filter
SF1145B
Connection
Terminals
Port 1 Hot
10
Port 1 Ground Return
1
Port 2 Hot
5
Port 2 Ground Return
6
Case Ground
All Others
Electrical Connections
Pb
427.250 MHz SAW Filter
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
Page 3 of 3
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1145B-121604
10-Terminal Ceramic Surface-Mount Case
7 x 5 mm Nominal Footprint
Recommended PCB Footprint
SMP-03 Case
Case Dimensions
Dimension
mm
Inches
Min
Nom
Max
Min
Nom
Max
A
6.80
7.00
7.20
0.268
0.276
0.283
B
4.80
5.00
5.20
0.189
0.197
0.205
C
1.65
2.00
0.065
0.079
D
0.60
0.024
E
2.54
0.100
H
1.0
0.039
J
5.00
0.197
K
3.00
0.118
P
1.27
0.050
Electrical Connections
Connection
Terminals
Port 1
Input or Return
10
Return or Input
1
Port 2
Output or Return
5
Return or Output
6
Ground
All others
Single Ended Operation
Return is ground
Differential Operation
Return is hot
Materials
Solder Pad
Termination
Au plating 30 - 60 uInches (76.2-152 uM) over 80-
200 uInches (203-508 uM) Ni.
Lid
Fe-Ni-Co Alloy Electroless Nickel Plate (8-11%
Phosphorus) 100-200 uInches Thick
Body
Al
2
O
3
Ceramic
Pb Free
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