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SF2221A Datasheet(PDF) 1 Page - RF Monolithics, Inc |
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SF2221A Datasheet(HTML) 1 Page - RF Monolithics, Inc |
1 / 4 page www.RFM.com E-mail: info@rfm.com Page 1 of 4 ©2010 by RF Monolithics, Inc. SF2221A - 11/12/10 Electrical Specifications Characteristic Sym Notes Min Typ Max Units Nominal Center Frequency fC 1 193.60 MHz Passband: Minimum Insertion Loss, 192.9 to 194.3 MHz 8.0 9.0 dB 1 dB Bandwidth BW1 1, 2 1.0 1.27 MHz 3 dB Bandwidth BW3 1.4 1.82 MHz 3 dB Passband VSWR, Matched 2.2:1 3:1 Group Delay Variation, 192.9 to 194.3 MHz GDV 300 500 nsP-P Absolute Delay at 193.6 MHz AGD 800 900 1000 ns Rejection: 1, 2, 3 dB 191.8 and 195.4 MHz 25 30 Ultimate Rejection, <182.6 MHz, >204.6 MHz 45 50 Operating Temperature Range TA 10 +70 °C • Precision IF SAW Filter • Excellent Size-to-Performance Ratio • Hermetic Surface-mount Case • Single-ended Input and Output • Complies with Directive 2002/95/EC (RoHS) Absolute Maximum Ratings Rating Value Units Maximum Incident Power in Passband +18 dBm Maximum DC Voltage Between any Two Terminals 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 193.60 MHz SAW Filter SF2221A 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. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may be calculated from: f=fo[1-FTC(To-Tc) 2]. 5. The design, manufacturing process, and specifications of this filter are subject to change. 6. 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. 7. US and international patents may apply. Impedance Matching to 50 Ω Single-ended Source and Load External L-C Case Style SM1154-14, 11.5 x 4 mm Nominal Footprint Lid Symbolization (YY = year, WW = week) SF2221A, YYWW Pb CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: Preliminary SM1154-14 |
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