AEC-Q200 RoHS Compliance This component is compliant with RoHS directive. This component was always RoHS compliant from the first date of manufacture. RO3112A Designed for 433.92 MHz Superheterodyne Receiver LOs Very Low Series Resistance 433.42 MHz Quartz Stability Surface-mount Ceramic Case SAW The RO3112A is a one-port surface-acoustic-wave (SAW) resonator packaged in a surface-mount ceramic case. It provides reliable, fundamental-mode quartz frequency stabilization of local oscillators operating at Resonator 433.42 MHz. The RO3112A is designed for 433.92 MHz superheterodyne receivers with a 500 kHz IF (Philips UAA3201T). Applications include remote-control and wireless security receivers operating in Europe under ETSI EN 300 220-2. Absolute Maximum Ratings Rating Value Units CW RF Power Dissipation (See Typical Test Circuit) +0 dBm DC Voltage Between Terminals (Observe ESD Precautions) 30 VDC Case Temperature -40 to +85 C SM5035-4 Soldering Temperature (10 seconds / 5 cycles maximum) 260 C Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units Center Frequency, +25 C Absolute Frequency f 433.345 433.495 MHz C 2, 3, 4, 5 Tolerance from 433.42 MHz f 75 kHz C Insertion Loss IL 1.4 1.6 2, 5, 6 dB Quality Factor Unloaded Q Q 8000 U 5, 6, 7 50 Loaded Q Q 1300 L Temperature Stability Turnover Temperature T 10 25 40 C O Turnover Frequency f f 6, 7, 8 O C 2 Frequency Temperature Coefficient FTC 0.032 ppm/C Frequency Aging Absolute Value during the First Year f 10 ppm/yr 1 A DC Insulation Resistance between Any Two Terminals 5 1.0 M RF Equivalent RLC Model Motional Resistance R 18.6 25 M Motional Inductance L 54.8 H 5, 7, 9 M Motional Capacitance C 2.5 fF M Transducer Static Capacitance C 5, 6, 9 3.7 pF O Test Fixture Shunt Inductance L 2, 7 36.8 nH TEST Lid Symbolization 658 // YYWWS CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. Frequency aging is the change in f with time and is specified at +65 C or 7. Derived mathematically from one or more of the following directly 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 above +65 C. Typically, aging is greatest the first year after manufacture, 8. Turnover temperature, T , is the temperature of maximum (or turnover) O decreasing in subsequent years. frequency, f . The nominal frequency at any case temperature, T , may be O C 2. The center frequency, f , is measured at the minimum insertion loss point, C 2 calculated from: f = f 1 - FTC (T -T ) . Typically, oscillator T is O O C O IL , with the resonator in the 50 test system (VSWR 1.2:1). The MIN approximately equal to 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 approximately equal to the OSCILLATOR TRANSMITTER resonant frequency and is provided for reference only. The capacitance C O resonator f . C is the static (nonmotional) capacitance between the two terminals 3. One or more of the following United States patents apply: 4,454,488 and measured at low frequency (10 MHz) with a capacitance meter. The 4,616,197. measurement includes parasitic capacitance with NC pads unconnected. 4. Typically, equipment utilizing this device requires emissions testing and Case parasitic capacitance is approximately 0.05 pF. Transducer parallel government approval, which is the responsibility of the equipment capacitance can be calculated as: C C - 0.05 pF. P O manufacturer. 10. Packaged in 500PC Tape carrier. 5. Unless noted otherwise, case temperature T = +25 2 C. C 6. The design, manufacturing process, and specifications of this device are subject to change without notice. Copyright Murata Manufacturing Co., Ltd. All rights reserved. April 2014 RO3112A (R) 8/22/18 Page 1 of 2 www.murata.comElectrical Connections Equivalent RLC Model The SAW resonator is bidirectional and may be installed with either orientation. The two terminals are interchangeable and unnumbered. The callout NC indicates no internal connection. The NC pads assist with mechanical positioning and stability. External grounding of the NC pads is recommended to help reduce parasitic Temperature Characteristics capacitance in the circuit. The curve shown on the right Typical Test Circuit accounts for resonator The test circuit inductor, L , is tuned to resonate with the static TEST contribution only and does not capacitance, C , at F . O C include LC component temperature contributions. Case Typical Application Circuits % PCB Land Pattern Top View Millimeters Inches Dimensions Min Nom Max Min Nom Max A 4.87 5.00 5.13 0.191 0.196 0.201 B 3.37 3.50 3.63 0.132 0.137 0.142 C 1.45 1.53 1.60 0.057 0.060 0.062 D 1.35 1.43 1.50 0.040 0.057 0.059 E 0.67 0.80 0.93 0.026 0.031 0.036 F 0.37 0.50 0.63 0.014 0.019 0.024 G 1.07 1.20 1.33 0.042 0.047 0.052 H - 1.04 - - 0.041 - I - 1.46 - - 0.058 - J - 3.01 - - 0.119 - K - 1.44 - - 0.057 - L - 1.92 - - 0.076 - Copyright Murata Manufacturing Co., Ltd. All rights reserved. April 2014 RO3112A (R) 8/22/18 Page 2 of 2 www.murata.com