SF2270A RFM | Alldatasheet
Document overview
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Technical content
www.RFM.com E-mail: info@rfm.com Page 1 of 4 © 2011 by RF Monolithics, Inc. SF2270A - 5/9/11
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 dB 1 dB Bandwidth BW 1 1 2.30 2.63 MHz 3 dB Bandwidth BW3 1 3.00 3.55 MHz 35 dB Bandwidth BW35 16 . 0 7 . 5 M H z Amplitude Ripple, fC ± 0.92 MHz 1, 2, 3 0.75 1.00 dBP-P 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 Attenuation Referenced to IL: dB 10 to 66 MHz 40 45 74 to 140 MHz 40 45 Operating Temperature Range 1 -10 +70 °C Impedance Matching to 50 Ω Unbalanced Source/Load External L-C Case Style 13.3 x 6.5 mm Nominal Footprint Lid Symbolization (YY = year, WW = week) RFM/SF2270A/YYWW
- Precision SAW IF Filter Hermetic 13.3 x 6.5 mm Surface-mount Case Complies with Directive 2002/95/EC (RoHS) Absolute Maximum Ratings Rating Value Units Maximum Incident Power in Passband +20 dBm Maximum DC Voltage on any Non-ground Terminal 3 VDC Storage Temperature Range in Tape and Reel -40 to +85 °C Suitable for Lead-free Soldering - Maximum Soldering Profile 260 °C for 30 s
70 MHz
- 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 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 depen dent on PCB layout and external impedance matching design. See Application Note No. 42 for details. 4. Part to part absolute delay measurement records the absolute delay mean across 1 dB passband. 5. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototype s.” 6. The design, manufacturing process, and specifications of this filter are subject to change. 7. 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. 8. US and international patents may apply. Pb CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: Preliminary
www.RFM.com E-mail: info@rfm.com Page 2 of 4 © 2011 by RF Monolithics, Inc. SF2270A - 5/9/11 Overall Filter Response Filter Passband Amplitude and Group Delay Response
www.RFM.com E-mail: info@rfm.com Page 3 of 4 © 2011 by RF Monolithics, Inc. SF2270A - 5/9/11 Ceramic Surface-mount 12- Terminal Case Electrical Connections Connection Terminals Input K Output E Ground All others Case Outline Drawing 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
1.8 MAX
www.RFM.com E-mail: info@rfm.com Page 4 of 4 © 2011 by RF Monolithics, Inc. SF2270A - 5/9/11 Tape and Reel Details