RFM products are now Murata products. SF2188D No External Matching Required 3.8 x 3.8 x 1.4 mm Surface-mount Package Complies with Directive 2002/95/EC (RoHS) 340 MHz SAW Filter Absolute Maximum Ratings Pb Rating Value Units Maximum Incident Power in Passband +10 dBm Maximum DC Voltage between any Two Terminals 3 VDC Storage Temperature Range -40 to +85 C Suitable for Lead-free Soldering - Maximum Soldering Profile 260C for 30 s SM3838-8 Electrical Characteristics Characteristic Sym Notes Min Typ Max Units Nominal Center Frequency F 1 339 340 341 MHz C Insertion Loss IL 1 2.0 3.0 dB 1 dB Bandwidth 1811MHz Passband Ripple, 336 to 344 MHz 1 0.4 1.0 dB P-P Absolute Attenuation (referenced from 0 dB) 10 to 300 MHz 250 54 dB 300 to 320 MHz 240 47 dB 375 to 800 MHz 240 45 dB Frequency Temperature Coefficient -36 ppm/C Source Impedance 50 ohm Load Impedance 50 ohm Operating Temperature Range -40 +85 C Case Style SM3838-8 3.8 x 3.8 mm Nominal Footprint Lid Symbolization (Y=year, WW=week, S=shift) RFM 876 YWWS Electrical Connections Connection Terminals Port 1 2 Port 2 6 Case Ground All others CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. Unless noted otherwise, all specifications apply over the operating tem- andEN or indicatesengineering prototypes perature range with filter soldered to the specified demonstration board 5. The design, manufacturing process, and specifications of this filter are with impedance matching to 50 and measured with 50 network ana- subject to change. lyzer. 6. Either Port 1 or Port 2 may be used for either input or output in the design. 2. Unless noted otherwise, all frequency specifications are referenced to the However, impedances and impedance matching may vary between Port 1 nominal center frequency, fc. and Port 2, so that the filter must always be installed in one direction per 3. Rejection is measured as absolute attenuation (0 dB reference). Rejection the circuit design. in final user application is dependent on PCB layout and external 7. US and international patents may apply. impedance matching design. See Application Note No. 42 for details. 8. Murata, stylized Murata logo, and Murata N.A., Inc. are registered 4.LRI or after the part number indicateslow rate initial productio trademarks of Murata Manufacturing Co., Ltd. 2010-2015 by Murata Electronics N.A., Inc. SF2188D (R) 2/24/15 Page 1 of 4 www.murata.comSF2188D Frequency Response 2010-2015 by Murata Electronics N.A., Inc. www.murata.com SF2188D (R) 2/24/15 Page 2 of 4