RO3102 Ideal for European Superheterodyne Receivers at 433.92 MHz Extremely Low Series Resistance Quartz Stability 423.22 MHz Rugged, Hermetic, Low-Profile TO39 Case Complies with Directive 2002/95/EC (RoHS) SAW Pb The RO3102 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It Resonator provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency oscillators operating at approximately 423.22 MHz. The RO3102 is designed for 433.92 MHz superheterodyne receivers with a 10.7 MHz IF used in remote control and wireless security systems operating under ETSI I-ETS 300 220. 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 Solder Temperature, 10 seconds/5 cycles maximum 260 C TO39-3 Case Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units Center Frequency (+25 C) Absolute Frequency f 423.145 423.295 MHz C 2, 3, 4, 5 Tolerance from 423.220 MHz f 75 kHz C Insertion Loss IL 1.4 2.0 2, 5, 6 dB Quality Factor Unloaded Q Q 12,500 U 5, 6, 7 50 Loaded Q Q 1,900 L Temperature Stability Turnover Temperature T 10 25 40 C O Turnover Frequency f f 6, 7, 8 kHz O c 2 Frequency Temperature Coefficient FTC 0.037 ppm/C Frequency Aging Absolute Value during the First Year f 10 ppm/yr 1 A DC Insulation Resistance between Any Two Pins 5 1.0 M RF Equivalent RLC Model Motional Resistance R 13 M Motional Inductance L 62 H 5, 7, 9 M Motional Capacitance C 2.3 fF M Pin 1 to Pin 2 Static Capacitance C 5, 6, 9 1.8 pF O Transducer Static Capacitance C 5, 6, 7, 9 1.8 pF P Test Fixture Shunt Inductance L 2, 7 77 nH TEST Lid Symbolization (in Addition to Lot and/or Date Codes) RFM RO3102 CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 7. Derived mathematically from one or more of the following directly 1. Frequency aging is the change in f with time and is specified at +65C or C measured parameters: f , IL, 3 dB bandwidth, f versus T , and C . less. Aging may exceed the specification for prolonged temperatures C C C O 8. Turnover temperature, T , is the temperature of maximum (or turnover) above +65C. Typically, aging is greatest the first year after manufacture, O frequency, f . The nominal frequency at any case temperature, T , may be decreasing significantly in subsequent years. O C 2 2. The center frequency, f , is measured at the minimum insertion loss point, C calculated from: f = f 1 - FTC (T -T ) . Typically, oscillator T is 20C O O C O IL , with the resonator in the 50 test system (VSWR 1.2:1). The MIN less than the specified resonator T . O shunt inductance, L , is tuned for parallel resonance with C at f . TEST O C 9. This equivalent RLC model approximates resonator performance near the Typically, f or f is less than the resonator f . OSCILLATOR TRANSMITTER C resonant frequency and is provided for reference only. The capacitance C O 3. One or more of the following United States patents apply: 4,454,488 and is the static (nonmotional) capacitance between pin1 and pin 2 measured 4,616,197 and others pending. at low frequency (10 MHz) with a capacitance meter. The measurement 4. Typically, equipment designs utilizing this device require emissions testing includes case parasitic capacitance with a floating case. For usual and government approval, which is the responsibility of the equipment manufacturer. grounded case applications (with ground connected to either pin 1 or pin 5. Unless noted otherwise, case temperature T = +25C2C. 2 and to the case), add approximately 0.25 pF to C . C O 6. The design, manufacturing process, and specifications of this device are subject to change without notice. www.RFM.com E-mail: info rfm.com Page 1 of 2 2008 by RF Monolithics, Inc. RO3102 - 9/11/08Electrical Connections This one-port, two-terminal SAW resonator is bidirectional. The terminals Temperature Characteristics are interchangeable with the exception of circuit board layout. The curve shown on the right f = f , T = T C O C O Pin Connection 0 0 accounts for resonator Bottom View -50 -50 contribution only and does not 1 Terminal 1 include oscillator temperature -100 -100 2 Terminal 2 Pin 1 Pin 2 characteristics. -150 3 Case Ground -150 Pin 3 -200 -200 -80 -60 -40 -20 0 +20 +40 +60 +80 Typical Test Circuit T = T - T ( C ) C O The test circuit inductor, L , is tuned to resonate with the static TEST capacitance, C at F . O C Electrical Test: Equivalent LC Model The following equivalent LC model is valid near resonance: 2 1 Network Network 1 2 Analyzer Analyzer 3 C =C +0.25 pF* o p C p *Case Parasitics R L C MM M Power Test: 0.5 pF* 0.5 pF* 1 P INCIDENT 3 Low-Loss 50 Matching Source at P REFLECTED Network F Case Design C to 50 3 2 - CW RF Power Dissipation = P P C G INCIDENT REFLECTED B H Typical Application Circuits F E A Typical Low-Power Transmitter Application: D (3 places) 200k MPS-H10 Modulation J +9VDC Input (2 places) 45 47 C1 L1 1 2 (Antenna) Millimeters Inches C2 Dimensions ROXXXX 3 RF Bypass Bottom View Min Max Min Max 470 A 9.40 0.370 B 3.18 0.125 C 2.50 3.50 0.098 0.138 Typical Local Oscillator Application: D 0.46 Nominal 0.018 Nominal Output +VDC E 5.08 Nominal 0.200 Nominal C1 F 2.54 Nominal 0.100 Nominal L1 +VDC 1 2 G 2.54 Nominal 0.100 Nominal H 1.02 0.040 C2 ROXXXX 3 J1.40 0.055 Bottom View RF Bypass www.RFM.com E-mail: info rfm.com Page 2 of 2 2008 by RF Monolithics, Inc. RO3102 - 9/11/08 f (ppm) (f-f ) o / o