SF2289C Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 155 MHz SAW Filter

• Low Loss SAW Filter
• 5.0 x 5.0 mm Surface-mount Case
• Complies with Directive 2002/95/EC (RoHS) _Pb
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage on any Non-ground Terminal
Storage Temperature Range in Tape and Reel
Maximum Soldering Profile
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss, f_C ± 4 MHz
Rejection Referenced to IL_MIN:
f_C-38.8 to f_C- 100 MHz
f_C+38.8 to f_C+100 MHz
Operating Temperature Range
Input Impedance at f_C
Output Impedance at f_C
Case Style
Lid Symbolization
Value
Units
0
dBm
10
V
-40 to +85
°C
265 °C for 10 s
SF2289C
155 MHz
SAW Filter
Sym
f_C
IL
T_A
Notes
1
1
1, 3
1
6
SM5050-8
Min
Typ
Max
Units
155
MHz
6.5
dB
50
dB
42
-10
+50
°C
263 8.7 pF
685 9.1 pF
SM5050-8 5 x 5 mm Nominal Footprint
A36
12 pF
50 ohm Matching Network
12 pF
56 nH
56 nH
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
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.
www.RFM.com E-mail: [e-mail]
© 2011-2012 by RF Monolithics, Inc.
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SF2289C 10/1/12