SF1120B Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 298.74 MHz SAW Filter

SF1120B
• Designed for GPS Applications
• 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
Suitable for lead-free soldering - Max. Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
SMP-03
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
1 db Passband
3 db Passband
Amplitude Ripple over fc±1.0 MHz
Group Delay Variation over fc ±1.0 MHz
Rejection
fc-25 to fc-5.0 and fc+5.0 to fc+25 MHz
Operating Temperature Range
Sym
f_C
IL
BW₁
BW₃
GDV
T_A
Notes
1
1, 2
1, 2, 3
1
Min
±750
±1100
Typ
298.740
±1150
-20
Max
12.0
±1300
1.0
250
+75
Units
MHz
dB
kHz
dB_P-P
ns_P-P
dB
°C
Matching to Unbalanced Impedance
Case Style
Lid Symbolization (YY = year, WW = week)
External L-C to 1kΩ (Port 1) and 200 Ω (Port 2)
6
SMP-03 7 x 5 mm Nominal Footprint
RFM SF1120B YYWW
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.
Electrical Connections
Connection
Port 1
Port 2
Case Ground
Terminals
1, 10
5, 6
All others
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
SF1120B-121504
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