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RF1355 Datasheet(PDF) 1 Page - RF Monolithics, Inc |
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RF1355 Datasheet(HTML) 1 Page - RF Monolithics, Inc |
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1 / 2 page  ® RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1 of 2 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. RF1355-010505 Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units Nominal Frequency fC 1, 2 389.900 390.100 MHz Tolerance from 390.0 MHz ∆f C ±100 kHz Insertion Loss IL 1 5.0 dB 3 dB Bandwidth BW3 1, 2 330 550 kHz Rejection at fc -21.4 MHz (Image) 1 40 dB at fc -10.7 MHz (LO) 15 Temperature Operating Case Temperature TC 3,4 -35 +85 °C Turnover Temperature TO 25 °C Turnover Frequency fO fC MHz Freq. Temp. Coefficient FTC 0.032 ppm/°C2 Frequency Aging Absolute Value during the First Year [fA] 5 ≤10 ppm/yr Lid Symbolization (in addition to Lot and / or Date Codes) RFM RF1355 TO39-3 Case • Ideal for 390.0 MHz Transmitters • Very Low Series Resistance • Quartz Stability • Rugged, Hermetic, Low-Profile TO39 Case • Complies with Directive 2002/95/EC (RoHS) The RF1355 is a true one-port. surface-acoustic-wave (SAW) filter in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmiters operating at 390.0 MHz. Absolute Maximum Ratings Rating Value Units CW RF Power Dissipation (See: Typical Test Circuit) +5 dBm DC Voltage Between Any Two Pins (Observe ESD Precautions) ±30 VDC Case Temperature -40 to +85 °C 390.0 MHz SAW Filter RF1355 CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 1. Frequency aging is the change in fC with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures above +65°C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years. 2. The center frequency, fC, is measured at the minimum insertion loss point, ILMIN, with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The shunt inductance, LTEST, is tuned for parallel resonance with CO at fC. Typically, fOSCILLATOR or fTRANSMITTER is less than the resonator fC. 3. One or more of the following United States patents apply: 4,454,488 and 4,616,197 and others pending. 4. Typically, equipment designs utilizing this device require emissions testing and government approval, which is the responsibility of the equipment manufacturer. 5. Unless noted otherwise, case temperature TC = +25°C±2°C. 6. The design, manufacturing process, and specifications of this device are subject to change without notice. 7. Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO. 8. 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]. Typically, oscillator T O is 20°C less than the specified resonator TO. 9. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance CO is the static (nonmo- tional) capacitance between pin1 and pin 2 measured at low frequency (10 MHz) with a capacitance meter. The measurement includes case parasitic capacitance with a floating case. For usual grounded case applications (with ground connected to either pin 1 or pin 2 and to the case), add approximately 0.25 pF to CO. Pb |
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