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SF2227A Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd. |
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SF2227A Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd. |
1 / 5 page www.RFM.com E-mail: info@rfm.com Page 1 of 5 ©2008-2010 by RF Monolithics, Inc. SF2227A - 5/14/10 Electrical Characteristics Characteristic Sym Notes Min Typ Max Units Center Frequency fC 1 69.8 70.0 70.2 MHz 1 dB Bandwidth BW1 15.2 5.4 3 dB Bandwidth BW3 16.0 6.5 40 dB Bandwidth BW40 19.5 10 Insertion Loss IL 1 7.6 9.0 dB Amplitude Ripple, fC ± 2.1 MHz 1, 2, 3 0.8 1.0 dBP-P Group Delay Ripple, fC ± 2.1 MHz 140 170 nsP-P Relative Attenuation: dB 10 to 64.5 MHz 40 45 75.5 to 140 MHz 40 43 Operating Temperature Range 1 -30 +80 °C Frequency Temperature Coefficient -94 ppm/°C Impedance Matching to 50 Ω Unbalanced External L-C Case Style SM13365-12 13.3 x 6.5 mm Nominal Footprint Lid Symbolization (YY = year, WW = week) RFM SF2227A YYWW • Precision IF SAW 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 30 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 SAW Filter SF2227A SM13365-12 1. 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. 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 dependent 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 prototypes.” 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 |
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