SF2190B Small Size Hermetic 5 X 7 mm Surface-mount Case Differential Input/Output 138 MHz Complies with Directive 2002/95/EC (RoHS) Pb SAW Filter Absolute Maximum Ratings Rating Value Units Maximum Incident Power in Passband +10 dBm Maximum DC Voltage Between any Two Terminals 3 VDC -40 to +85 C Operating Temperature Range Storage Temperature Range in Tape and Reel -40 to +85 C Maximum Soldering Profile 265C for 10 s SMP-03 Electrical Characteristics Characteristic Sym Notes Min Typ Max Units F Center Frequency 138 MHz C Insertion Loss IL 18.8 21.0 dB 1 dB Bandwidth 60 63 MHz 3 dB Bandwidth 65.4 MHz dB Amplitude Ripple Across 1 dB Bandwidth 0.6 1.2 P-P Upper -35 dB Band Edge 176 179 MHz Lower -35 dB Band Edge 97 101 MHz Ultimate Rejection 35 40 dB Temperature Coefficient -72 ppm/C Source Impedance, Balanced 50 ohm Load Impedance, Balanced 50 ohm Case Style SMP-03 5 X 7 mm Nominal Footprint Lid Symbolization (Y=year, WW=week, S=shift) See note 3 RFM SF2190B YWWS CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. Unless noted otherwise, all specifications apply over the operating tem- 4. The design, manufacturing process, and specifications of this filter are perature range with filter soldered to the specified demonstration board subject to change. with impedance matching to 50 and measured with 50 network ana- 5. Either Port 1 or Port 2 may be used for either input or output in the design. lyzer. A dB offset exists for RFM because of the loss introduced by using However, impedances and impedance matching may vary between Port 1 transformers on the Input and Output. and Port 2, so that the filter must always be installed in one direction per 2. Rejection is measured as attenuation below the minimum IL point in the the circuit design. passband. Rejection in final user application is dependent on PCB layout 6. US and international patents may apply. and external impedance matching design. See Application Note No. 42 7. Murata, stylized Murata logo, and Murata N.A., Inc. are registered for details. trademarks of Murata Manufacturing Co., Ltd. 3.LRI or after the part number indicateslow rate initial productio andEN or indicatesengineering prototypes 2010-2015 by Murata Electronics N.A., Inc. Copyright Murata Manufacturing Co., Ltd. All Rights Reserved 2014 SF219B (R) 6/2/15 Page 1 of 5 www.murata.comSF2190B Response, 38 to 238 MHz SF2190B Passband Response 2010-2015 by Murata Electronics N.A., Inc. Copyright Murata Manufacturing Co., Ltd. All Rights Reserved 2014 www.murata.com SF219B (R) 6/2/15 Page 2 of 5