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RO2101 数据表(PDF) 1 Page - RF Monolithics, Inc |
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RO2101 数据表(HTML) 1 Page - RF Monolithics, Inc |
1 / 2 page ® RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 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. RO2101-102599 Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units Center Frequency (+25 °C) Absolute Frequency fC 2, 3, 4, 5 433.845 433.995 MHz Tolerance from 433.920 MHz ∆f C ±75 kHz Insertion Loss IL 2, 5, 6 1.5 2.0 dB Quality Factor Unloaded Q QU 5, 6, 7 12,800 50 Ω Loaded Q QL 2,000 Temperature Stability Turnover Temperature TO 6, 7, 8 24 39 54 °C Turnover Frequency fO fc + 2.7 kHz Frequency Temperature Coefficient FTC 0.037 ppm/°C2 Frequency Aging Absolute Value during the First Year |fA| 1 ≤10 ppm/yr DC Insulation Resistance between Any Two Pins 5 1.0 M Ω RF Equivalent RLC Model Motional Resistance RM 5, 7, 9 18 26 Ω Motional Inductance LM 86.0075 µH Motional Capacitance CM 1.56417 fF Pin 1 to Pin 2 Static Capacitance CO 5, 6, 9 1.7 2.0 2.3 pF Transducer Static Capacitance CP 5, 6, 7, 9 1.7 pF Test Fixture Shunt Inductance LTEST 2, 7 78 nH Lid Symbolization (in Addition to Lot and/or Date Codes) RFM RO2101 TO39-3 Case • Ideal for 433.92 MHz Transmitters • Very Low Series Resistance • Quartz Stability • Rugged, Hermetic, Low-Profile TO39 Case • Complies with Directive 2002/95/EC (RoHS) The RO2101 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It pro- vides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 433.92 MHz. The RO2101 is designed specifically for remote-control and wireless security transmitters oper- ating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100. Absolute Maximum Ratings Rating Value Units CW RF Power Dissipation +0 dBm DC Voltage Between Any Two Pins ±30 VDC Case Temperature -40 to +85 °C 433.92 MHz SAW Resonator RO2101 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 signifi- cantly 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 induc- tance, LTEST, is tuned for parallel resonance with CO at fC. Typically, fOSCILLA- TOR 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) fre- quency, fO. The nominal frequency at any case temperature, TC, may be calcu- lated 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 reso- nant frequency and is provided for reference only. The capacitance CO is the static (nonmotional) capacitance between pin1 and pin 2 measured at low fre- quency (10 MHz) with a capacitance meter. The measurement includes case parasitic capacitance with a floating case. For usual grounded case applica- tions (with ground connected to either pin 1 or pin 2 and to the case), add approximately 0.25 pF to CO. Pb |
类似零件编号 - RO2101 |
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类似说明 - RO2101 |
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