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SF1120B
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Designed for GPS Applications
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?
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Quartz Temperature Stability
Small Size
Hermetic 7 x 5 mm Surface-mount Case
Complies with Directive 2002/95/EC (RoHS)
Pb
298.74 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Value
+10
30
-40 to +85
Units
dBm
VDC
°C
Suitable for lead-free soldering - Max. Soldering Profile
Electrical Characteristics
260°C for 30 s
SMP-03
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
Sym
f C
IL
Notes
1
Min
Typ
298.740
Max
12.0
Units
MHz
dB
1 db Passband
3 db Passband
Amplitude Ripple over fc±1.0 MHz
BW 1
BW 3
1, 2
±750
±1100
±1150
±1300
1.0
kHz
dB P-P
Group Delay Variation over fc ±1.0 MHz
GDV
250
ns P-P
Rejection
fc-25 to fc-5.0 and fc+5.0 to fc+25 MHz
1, 2, 3
dB
Operating Temperature Range
T A
1
-20
+75
°C
Matching to Unbalanced Impedance
External L-C to 1k ? (Port 1) and 200 ? (Port 2)
Case Style
6
SMP-03 7 x 5 mm Nominal Footprint
Lid Symbolization (YY = year, WW = week)
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature range
RFM SF1120B YYWW
Electrical Connections
2.
3.
with filter soldered to the specified demonstration board with impedance matching to 50 ?
and measured with 50 ? network analyzer.
Unless noted otherwise, all frequency specifications are referenced to the nominal center
frequency, fc.
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
Connection
Port 1
Port 2
Case Ground
Terminals
1, 10
5, 6
All others
matching design. See Application Note No. 42 for details.
4.
5.
6.
7.
8.
9.
"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E"
indicates "engineering prototypes."
The design, manufacturing process, and specifications of this filter are subject to change.
Tape and Reel Standard ANSI / EIA 481.
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.
US and international patents may apply.
Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc.
RFM Europe
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
Page 1 of 4
?2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1120B-121504
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