RO3112C 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 RO3112C 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 433.42 MHz. This SAW is designed specifically for use in 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 SM5050-8 Case Soldering Temperature (10 seconds / 5 cycles maximum) 260 C 5 X 5 Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units f Center Frequency +25 C Absolute Frequency 433.345 433.495 MHz C 2,3,4,5 f Tolerance from 433.420 MHz 75 kHz C Insertion Loss IL 2,5,6 1.2 1.5 dB Q Quality Factor Unloaded Q 8700 U Q 50 Loaded Q 920 L T Temperature Stability Turnover Temperature 10 25 40 C O f f Turnover Frequency 6,7,8 O C 2 Frequency Temperature Coefficient FTC 0.032 ppm/C Frequency Aging Absolute Value during the First Year f 1 10 ppm/yr A DC Insulation Resistance between Any Two Terminals 5 1.0 M RF Equivalent RLC Model Motional Resistance R 11.9 M Motional Inductance L 5, 7, 9 37.9 H M Motional Capacitance C 3.6 fF M Shunt Static Capacitance C 5, 6, 9 3.8 pF O Test Fixture Shunt Inductance L 2, 7 35.4 nH TEST Lid Symbolization (in addition to Lot and/or Date Codes) 657 // 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 6. The design, manufacturing process, and specifications of this device are C subject to change without notice. less. Aging may exceed the specification for prolonged temperatures 7. Derived mathematically from one or more of the following directly above +65 C. Typically, aging is greatest the first year after manufacture, measured parameters: f , IL, 3 dB bandwidth, f versus T , and C . decreasing in subsequent years. C C C O 2. The center frequency, f , is measured at the minimum insertion loss point, 8. Turnover temperature, T , is the temperature of maximum (or turnover) C O IL , with the resonator in the 50 test system (VSWR 1.2:1). The frequency, f . The nominal frequency at any case temperature, T , may be MIN O C 2 shunt inductance, L , is tuned for parallel resonance with C at f . TEST O C calculated from: f = f 1 - FTC (T -T ) . Typically oscillator T is O O C O Typically, f or f is approximately equal to the OSCILLATOR TRANSMITTER approximately equal to the specified resonator T . O resonator f . C 9. This equivalent RLC model approximates resonator performance near the 3. One or more of the following United States patents apply: 4,454,488 and resonant frequency and is provided for reference only. The capacitance C O 4,616,197. is the static (nonmotional) capacitance between the two terminals 4. Typically, equipment utilizing this device requires emissions testing and measured at low frequency (10 MHz) with a capacitance meter. The government approval, which is the responsibility of the equipment measurement includes parasitic capacitance withNC pads unconnected. manufacturer. Case parasitic capacitance is approximately 0.05 pF. Transducer parallel 5. Unless noted otherwise, case temperature T = +25 2 C. C capacitance can by calculated as: C C -0.05pF. P O 2010-2014 by Murata Electronics N.A., Inc. Copyright Murata Manufacturing Co., Ltd. All Rights Reserved 2007 RO3112C (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 and unnumbered. The callout NC 3NC 7 1 indicates no internal connection. The NC 4NC From 50 8 To 50 6 2 pads assist with mechanical positioning Network Analyzer Network Analyzer 5NC 4 and stability. External grounding of the NC 5 3 6 Terminal pads is recommended to help reduce 7NC parasitic capacitance in the circuit. 8NC Power Test Circuit B C E NC NC 8 8 P INCIDENT Low-Loss 50 Source 1 2 3 D Matching 1 7 7 1 at F 8 4 C NC NC Network to P REFLECTED 7 6 5 50 A 2 6 6 2 G NC NC 3 5 5 3 Example Application Circuits 4 4 Typical Low-Power Transmitter Application F 200k +9VDC Modulation Input C1 47 L1 (Antenna) 1 2 3 8 4 7 6 5 C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Output 200k +VDC C1 +VDC L1 1 2 3 8 4 7 6 5 mm Inches Dimension C2 Min Nom Max Min Nom Max ROXXXXC Bottom View RF Bypass A 4.80 5.00 5.20 0.189 0.197 0.205 B 4.80 5.00 5.20 0.189 0.197 0.205 C 1.30 1.50 1.70 0.050 0.060 0.067 Equivalent RLC Model D 1.98 2.08 2.18 0.078 0.082 0.086 0.05 pF* E 1.07 1.17 1.27 0.042 0.046 0.050 + C = Cp 0.05 pF o F 0.50 0.64 0.70 0.020 0.025 0.028 C p *Case Parasitics G 2.39 2.54 2.69 0.094 0.100 0.106 H 1.27 0.050 Lm Cm Rm I 0.76 0.030 Temperature Characteristics J 1.55 0.061 The curve shown on the right accounts for resonator contribution only and K 2.79 0.110 does not include LC component temperature contributions. L 0.76 0.030 f = f , T = T C O C O M 2.36 0.093 0 0 N 1.55 0.061 -50 -50 O 2.79 0.110 -100 -100 P 2.79 0.110 -150 -150 Q 2.79 0.110 -200 -200 -80 -60 -40 -20 0 +20 +40 +60 +80 T = T - T ( C ) C O 2010-2014 by Murata Electronics N.A., Inc. Copyright Murata Manufacturing Co., Ltd. All Rights Reserved 2007 www.murata.com RO3112C (R) 4/14/14 Page 2 of 2 (ppm) (f-f ) f / o o