SF2248E RFM | Alldatasheet

Document overview

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Technical content

www.RFM.com E-mail: info@rfm.com Page 1 of 4 © 2010-2012 by RF Monolithics, Inc. SF2248E - 3/8/12

Electrical Characteristics

Characteristic Sym Notes Min Typ Max Units Center Frequency fC 315 MHz 3 dB Bandwidth 5M H z Insertion Loss, 314.7 to 315.3 MHz ILMAX 1.52 2.50 dB Amplitude Ripple, 314.7 to 315.3 MHz 0.4 1.2 dBP-P VSWR 1.4:1 1.6:1 Attenuation Referenced to ILMAX: 270.0 to 286.0 MHz 55 65 dB 293.0 to 293.9 MHz 53 60 304.0 to 304.6 MHz 48 60 325.4 to 326.0 MHz 24 30 336.1 to 337.0 MHz 36 52 357.5 to 358.7 MHz 50 60 Source Impedance ZS 50  Load Impedance ZL 50  Case Style SM3030-6 3.0 x 3.0 mm Nominal Footprint Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator 986, YWWS Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel Electrical Connections Connection Terminals Input 2 Output 5 Case Ground All others SM3030-6

  • Low-loss RF Filter for 315 MHz Applications
  • No Matching Required for Operation in 50  Environment
  • Complies with Directive 2002/95/EC (RoHS) Absolute Maximum Ratings Rating Value Units Input Power Level 10 dBm DC Voltage on any Non-ground Terminal 3 V Operating Temperature Range -40 to +85 °C Storage Temperature Range in Tape and Reel -40 to +85 °C Maximum Soldering Profile, 5 Cycles/10 seconds Maximum 265 °C

315 MHz

  1. Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified d emonstration 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 depen dent on PCB layout and external impedance matching design. See Application Note No. 42 for details. 4. The design, manufacturing process, and specifications of this filter are subject to change. 5. US and international patents may apply. 6. 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:

www.RFM.com E-mail: info@rfm.com Page 2 of 4 © 2010-2012 by RF Monolithics, Inc. SF2248E - 3/8/12 Amplitude Response Plots

www.RFM.com E-mail: info@rfm.com Page 3 of 4 © 2010-2012 by RF Monolithics, Inc. SF2248E - 3/8/12 /G4B /G4B /G4F /G4D /G4D /G4E /G4E /G4E /G4C 6-Terminal Ceramic Surface-Mount Case 3.0 X 3.0 mm Nominal Footprint SM3030-6 Case Top View Bottom View Case and PCB Footprint Dimensions Case Materials Dimension mm Inches Min Nom Max Min Nom Max K 3.20 0.126 L 1.70 0.067 M 1.05 0.041 N 0.81 0.032 O 0.38 0.015 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 Top View A BC D J EF GH I 986 YWWS

www.RFM.com E-mail: info@rfm.com Page 4 of 4 © 2010-2012 by RF Monolithics, Inc. SF2248E - 3/8/12 Tape and Reel Specifications “B” Nominal Size Quantity Per Reel Inches millimeters 7 178 500 13 330 3000 See Detail "A" 13.0 20.22.0 12.0 100 REF. "B" REF. COMPONENT ORIENTATION and DIMENSIONS Carrier Tape Dimensions Ao 3.35 mm Bo 3.35 mm Ko 1.40 mm Pitch 8.0 mm W 12.0 mm RO.3 (MAX.) Ko SECTION A-A 0.3 ± 0.05 SECTION B-B Bo 2.0 4.0 Ao Pitch B B A R0.5 (MAX.) A 5.5 12.0 1.75 1.5 1.50PIN #1 USER DIRECTION OF FEED