Preliminary SF2270A • Precision SAW IF Filter • Hermetic 13.3 x 6.5 mm Surface-mount Case • Complies with Directive 2002/95/EC (RoHS) 70 MHz SAW Filter Pb Absolute Maximum Ratings Rating Value Units +20 dBm 3 VDC Maximum Incident Power in Passband Maximum DC Voltage on any Non-ground Terminal Storage Temperature Range in Tape and Reel -40 to +85 Suitable for Lead-free Soldering - Maximum Soldering Profile °C 260 °C for 30 s Case Electrical Characteristics Characteristic Sym Notes Min Typ Max Units Center Frequency fC 1 69.85 70.00 70.15 MHz Insertion Loss IL 1 7.5 8.2 1 dB Bandwidth BW1 1 2.30 2.63 3 dB Bandwidth BW3 1 3.00 3.55 35 dB Bandwidth BW35 1 6.0 7.5 MHz 1, 2, 3 0.75 1.00 dBP-P Amplitude Ripple, fC ± 0.92 MHz dB MHz MHz RMS Phase Linearity, fC±1.2 MHz 2.2 5.0 ns Group Delay Ripple, fC±1.2 MHz 155 190 nsP-P Absolute Delay 1.07 µs dB Attenuation Referenced to IL: 10 to 66 MHz 40 45 74 to 140 MHz 40 45 Operating Temperature Range 1 -10 Impedance Matching to 50 Ω Unbalanced Source/Load Case Style Lid Symbolization (YY = year, WW = week) +70 °C External L-C 13.3 x 6.5 mm Nominal Footprint RFM/SF2270A/YYWW CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 1. 2. 3. 4. 5. 6. 7. 8. Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to 50 Ω and measured with 50 Ω network analyzer. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc. 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. Part to part absolute delay measurement records the absolute delay mean across 1 dB passband. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes.” The design, manufacturing process, and specifications of this filter are subject to change. 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. US and international patents may apply. www.RFM.com E-mail: [email protected] © 2011 by RF Monolithics, Inc. Page 1 of 4 SF2270A - 5/9/11 Overall Filter Response Filter Passband Amplitude and Group Delay Response www.RFM.com E-mail: [email protected] © 2011 by RF Monolithics, Inc. Page 2 of 4 SF2270A - 5/9/11 Ceramic Surface-mount 12Terminal Case Case Outline Drawing 1.8 MAX dimensions in mm PCB Pad Layout Case Material 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 Tuning Network Electrical Connections Connection Input Terminals K Output E Ground All others www.RFM.com E-mail: [email protected] © 2011 by RF Monolithics, Inc. Page 3 of 4 SF2270A - 5/9/11 Tape and Reel Details www.RFM.com E-mail: [email protected] © 2011 by RF Monolithics, Inc. Page 4 of 4 SF2270A - 5/9/11