SF2237C RFM | Alldatasheet
Document overview
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Technical content
www.RFM.com E-mail: info@rfm.com Page 1 of 4 © 2010 by RF Monolithics, Inc. SF2237C - 6/14/10
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units Nominal Center Frequency fC 515.0 MHz Minimum Insertion Loss ILMIN -5 . 0 d B 1 dB Bandwidth BW 1 27 30 MHz Amplitude Ripple, fC ±11.5 MHz 0.6 1.0 dBP-P Group Delay Ripple, fC ±11.5 MHz 30 nsP-P Rejection referenced to ILMIN: 300 to 487.5 MHz 45 60 dB 540 to 650 MHz 45 50 Frequency Temperature Drift -93 ppm/°C Case Style 5 x 5 mm Nominal Footprint Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator 971, YWWS Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel Connection Terminals Input 1 Output 5 Case Ground All others
- High Performance SAW Filter 5 x 5 mm Surface-mount Package Complies with Directive 2002/95/EC (RoHS) Absolute Maximum Ratings Rating Value Units Maximum Incident Power in Passband +10 dBm Maximum DC Voltage Between any Two Active Terminals 30 VDC Operating Temperature Range -40 to +85 °C Storage Temperature Range in Tape and Reel -40 to +85 °C Suitable for Lead-free Soldering - Maximum Soldering Profile 260 °C for 30 s
515.0 MHz
- Unless noted otherwise, all specifications apply over the operating temper- ature 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. 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. 7. US and international patents may apply. 8. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc. Pb CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: SF2237C SM5050-8 Preliminary
www.RFM.com E-mail: info@rfm.com Page 2 of 4 © 2010 by RF Monolithics, Inc. SF2237C - 6/14/10 Filter Amplitude and Group Delay Response Plots
www.RFM.com E-mail: info@rfm.com Page 3 of 4 © 2010 by RF Monolithics, Inc. SF2237C - 6/14/10 Dimension mm Inches Min Nom Max Min Nom Max H 1.27 0.050 I 0.76 0.030 J 1.55 0.061 K 2.79 0.110 L 0.76 0.030 M 2.36 0.093 N 1.55 0.061 O 2.79 0.110 P 2.79 0.110 Q 2.79 0.110 8-Terminal Ceramic Surface-Mount Case 5.0 X 5.0 mm Nominal Footprint SM5050-8 Case Case Dimensions Case Materials Materials Solder Pad Plating 0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel Lid Plating 2.0 to 3.0 µm Nickel Body Al2O3 Ceramic Pb Free PCB Footprint /G48 /G49 /G4A /G4B /G4C /G4D /G4E /G4F /G50 /G51 A B C D 7 E F G 8 8 TOP VIEW BOTTOM VIEW
www.RFM.com E-mail: info@rfm.com Page 4 of 4 © 2010 by RF Monolithics, Inc. SF2237C - 6/14/10 Tape and Reel Specifications “B” Nominal Size Quantity Per Reel Inches millimeters 7 178 500 13 330 3000 USER DIRECTION OF FEED COMPONENT ORIENTATION and DIMENSIONS Carrier Tape Dimensions Ao 5.3 mm Bo 5.3 mm Ko 2.0 mm Pitch 8.0 mm W1 2 . 0 m m PIN #1 See Detail "A" 13.0 20.22.0 12.0 100 REF. "B" REF.