RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1 of 4
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF1120B-121504
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units
Nominal Center Frequency fC1298.740 MHz
Passband Insertion Loss at fc IL 12.0 dB
1 db Passband BW1
1, 2
±750 kHz
3 db Passband BW3±1100 ±1150 ±1300
Amplitude Ripple over fc±1.0 MHz 1.0 dBP-P
Group Delay Variation over fc ±1.0 MHz GDV 250 nsP-P
Rejection fc-25 to fc-5.0 and fc+5.0 to fc+25 MHz 1, 2, 3 dB
Operating Temperature Range TA1-20 +75 °C
SMP-03
•Designed for GPS Applications
•Quartz Temperature Stability
•Small Size
•Hermetic 7 x 5 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
298.74 MHz
SAW Filter
SF1120B
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 Ω
and measured with 50 Ω 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 fil-
ter must always be installed in one direction per the circuit design.
8. US and international patents may apply.
9. Electrostatic Sensitive Device. Observe precautions for handling.
Connection Terminals
Port 1 1, 10
Port 2 5, 6
Case Ground All others
Electrical Connections
Matching to Unbalanced Impedance External L-C to 1kΩ (Port 1) and 200 Ω (Port 2)
Case Style 6SMP-03 7 x 5 mm Nominal Footprint
Lid Symbolization (YY = year, WW = week) RFM SF1120B YYWW
Pb
298.74 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 2 of 4
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF1120B-121504
298.74 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 3 of 4
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF1120B-121504
Tape and Reel Specifications
“B “
Nominal Size Quantity Per Reel
Inches millimeters
7178 500
13 330 2000
USER DIRECTION OF FEED
COMPONENT ORIENTATION and DIMENSIONS
Carrier Tape Dimensions
Ao 5.5 mm
Bo 7.5 mm
Ko 2.0 mm
Pitch 8.0 mm
W16.0 mm
PIN #1
See Detail "A"
13.0
20.2
2.0
12.0
100 REF.
"B" REF.
16.0
298.74 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 4 of 4
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF1120B-121504
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
A6.80 7.00 7.20 0.268 0.276 0.283
B4.80 5.00 5.20 0.189 0.197 0.205
C1.65 2.00 0.065 0.079
D0.60 0.024
E2.54 0.100
H1.0 0.039
J5.00 0.197
K3.00 0.118
P1.27 0.050
ElectricalConnections
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 Al2O3 Ceramic
Pb Free
