RFM products are now Murata products. RO3112D Ideal for European 433.420 MHz Remote Control and Security Transmitters Very Low Series Resistance 433.420 MHz Quartz Stability Pb Complies with Directive 2002/95/EC (RoHS) SAW The RO3112D is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters Resonator operating at 433.420 MHz. This SAW is designed specifically for remote control and wireless security transmitters operating in Europe under ETSI I-ETS 300 220. Absolute Maximum Ratings Rating Value Units Input Power Level 0 dBm DC Voltage 12 VDC Storage Temperature -40 to +85 C SM3838-6 Case Soldering Temperature (10 seconds / 5 cycles maximum) 260 C 3.8 X 3.8 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 433.420 MHz f 75 kHz C Insertion Loss IL 2,5,6 1.2 2.5 dB Quality Factor Unloaded Q Q 8400 U 5,6,7 50 Loaded Q Q 1000 L Temperature Stability Turnover Temperature T 10 25 40 C O f Turnover Frequency f 6,7,8 O C 2 Frequency Temperature Coefficient FTC 0.032 ppm/C f Frequency Aging Absolute Value during the First Year 1 10 ppm/yr A DC Insulation Resistance between Any Two Terminals 5 1.0 M R RF Equivalent RLC Model Motional Resistance 13.7 M L Motional Inductance 5, 7, 9 42.2 H M C Motional Capacitance 3.2 fF M C Shunt Static Capacitance 5, 6, 9 3.7 pF O L Test Fixture Shunt Inductance 2, 7 36.2 nH TEST Lid Symbolization (in addition to Lot and/or Date Codes) 683 // YWWS Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel 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 subject to change without notice. C 7. Derived mathematically from one or more of the following directly less. Aging may exceed the specification for prolonged temperatures measured parameters: f , IL, 3 dB bandwidth, f versus T , and C . above +65 C. Typically, aging is greatest the first year after manufacture, C C C O decreasing in subsequent years. 8. Turnover temperature, T , is the temperature of maximum (or turnover) O 2. The center frequency, f , is measured at the minimum insertion loss point, C frequency, f . The nominal frequency at any case temperature, T , may be O C IL , with the resonator in the 50 test system (VSWR 1.2:1). The 2 MIN calculated from: f = f 1 - FTC (T -T ) . Typically oscillator T is O O C O shunt inductance, L , is tuned for parallel resonance with C at f . TEST O C approximately equal to the specified resonator T . O Typically, f or f is approximately equal to the OSCILLATOR TRANSMITTER 9. This equivalent RLC model approximates resonator performance near the resonator f . 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 the two terminals 4,616,197. measured at low frequency (10 MHz) with a capacitance meter. The 4. Typically, equipment utilizing this device requires emissions testing and measurement includes parasitic capacitance withNC pads unconnected. government approval, which is the responsibility of the equipment Case parasitic capacitance is approximately 0.05 pF. Transducer parallel manufacturer. capacitance can by calculated as: C C -0.05pF. P O 5. Unless noted otherwise, case temperature T = +25 2 C. C 6. The design, manufacturing process, and specifications of this device are 2010-2014 by Murata Electronics N.A., Inc. RO3112D (R) 4/14/14 Page 1 of 2 www.murata.comElectrical Connections Parameter Test Circuit Pin Connection The SAW resonator is bidirectional and 1NC may be installed with either orientation. 2 Terminal The two terminals are interchangeable 3NC and unnumbered. The callout NC 6 4NC indicates no internal connection. The NC 1 pads assist with mechanical positioning 5NC From 50 5 To 50 2 Network Analyzer Network Analyzer and stability. External grounding of the NC 6 Terminal 4 3 pads is recommended to help reduce 7NC parasitic capacitance in the circuit. 8NC Power Test Circuit BC GH 1 6 6 1 P INCIDENT Low-Loss 50 Source 2 3 Matching 1 A 2 5 E 5 2 I at F C Network to 6 5 4 P REFLECTED 50 4 3 4 3 D J Example Application Circuits Typical Low-Power Transmitter Application 200k +9VDC Modulation Input C1 47 L1 (Antenna) 2 3 1 6 5 4 C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Output 200k +VDC C1 +VDC L1 Case Dimensions 2 3 1 mm Inches 6 5 4 Dimension Min Nom Max Min Nom Max C2 ROXXXXC A 3.60 3.80 4.00 0.142 0.150 0.157 Bottom View RF Bypass B 3.60 3.80 4.00 0.142 0.150 0.157 C 1.10 1.30 1.50 0.043 0.050 0.060 D 0.95 1.10 1.25 0.037 0.043 0.049 Temperature Characteristics E 2.39 2.54 2.69 0.094 0.100 0.106 The curve shown on the right accounts for resonator contribution only and G 0.90 1.00 1.10 0.035 0.040 0.043 does not include LC component temperature contributions. H 1.90 2.00 2.10 0.748 0.079 0.083 I 0.50 0.60 0.70 0.020 0.024 0.028 f = f , T = T C O C O J 1.70 1.80 1.90 0.067 0.071 0.075 0 0 -50 -50 Equivalent RLC Model -100 -100 0.05 pF* -150 -150 C + C = p 0.05 pF o Cp -200 -200 *Case Parasitics -80-60 -40-20 0 +20 +40 +60 +80 T = T - T ( C ) Rm Lm Cm C O 2010-2014 by Murata Electronics N.A., Inc. www.murata.com RO3112D (R) 4/14/14 Page 2 of 2 (ppm) (f-f ) f o / o