RO3112C * * * * Ideal for European 433.420 MHz Remote Control and Security Transmitters Very Low Series Resistance Quartz Stability Pb Complies with Directive 2002/95/EC (RoHS) 433.420 MHz SAW Resonator 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 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 0 dBm 12 VDC Input Power Level DC Voltage Storage Temperature -40 to +85 C 260 C Soldering Temperature (10 seconds / 5 cycles maximum) SM5050-8 Case 5X5 Electrical Characteristics Characteristic Center Frequency +25 C Sym fC Absolute Frequency fC Tolerance from 433.420 MHz Insertion Loss IL Quality Factor Unloaded Q QU 50Loaded Q QL Turnover Temperature TO Turnover Frequency fO Temperature Stability Frequency Aging 1.2 Maximum Units 433.495 MHz 75 kHz 1.5 dB 40 C 920 10 FTC Absolute Value during the First Year |fA| 25 fC 6,7,8 ppm/C2 ppm/yr 0.032 10 1 5 1.0 M 11.9 5, 7, 9 37.9 H 3.6 fF CO 5, 6, 9 3.8 pF LTEST 2, 7 35.4 nH Motional Resistance RM Motional Inductance LM Motional Capacitance CM Shunt Static Capacitance Lid Symbolization (in addition to Lot and/or Date Codes) Standard Reel Quantity Typical 433.345 8700 Frequency Temperature Coefficient Test Fixture Shunt Inductance 2,3,4,5 Minimum 2,5,6 DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Notes 657 // YWWS Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. 2. 3. 4. 5. 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 in subsequent years. The center frequency, fC, is measured at the minimum insertion loss point, ILMIN, with the resonator in the 50 test system (VSWR 1.2:1). The shunt inductance, LTEST, is tuned for parallel resonance with CO at fC. Typically, fOSCILLATOR or fTRANSMITTER is approximately equal to the resonator fC. One or more of the following United States patents apply: 4,454,488 and 4,616,197. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. Unless noted otherwise, case temperature TC = +25 2 C. 6. 7. 8. 9. (c)2010-2014 byMurata Murata Electronics N.A., Inc. Copyright (c) Manufacturing Co., Ltd. All Rights Reserved 2007 RO3112C (R) 4/14/14 Page 1 of 2 The design, manufacturing process, and specifications of this device are subject to change without notice. Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO. Turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fO. The nominal frequency at any case temperature, TC, may be calculated from: f = fO [1 - FTC (TO -TC)2]. Typically oscillator TO is approximately equal to the specified resonator TO. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance CO is the static (nonmotional) capacitance between the two terminals measured at low frequency (10 MHz) with a capacitance meter. The measurement includes parasitic capacitance with "NC" pads unconnected. Case parasitic capacitance is approximately 0.05 pF. Transducer parallel capacitance can by calculated as: CP CO - 0.05 pF. www.murata.com Electrical Connections Pin 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 capacitance in the circuit. Parameter Test Circuit Connection 1 NC 2 Terminal 3 NC 4 NC 5 7 From 50 Network Analyzer NC 6 Terminal 7 NC 8 NC 1 8 6 To 50 Network Analyzer 2 4 5 3 Power Test Circuit NC 8 1 D 7 7 50 Source at F C 1 2 6 6 2 3 5 5 3 G Low-Loss Matching Network to 50 1 NC 2 8 NC 7 3 NC 4 6 5 NC NC Example Application Circuits 4 4 P INCIDENT P REFLECTED F Typical Low-Power Transmitter Application 200k Modulation Input +9VDC C1 47 L1 (Antenna) L 1 2 8 J 7 M 6 3 4 5 C2 P ROXXXXC Bottom View H RF Bypass 470 Typical Local Oscillator Application I Q N K +VDC C1 2 8 A B C D E F G H I J K L M N O P Q Min 4.80 4.80 1.30 1.98 1.07 0.50 2.39 mm Nom 5.00 5.00 1.50 2.08 1.17 0.64 2.54 1.27 0.76 1.55 2.79 0.76 2.36 1.55 2.79 2.79 2.79 +VDC L1 O 1 Dimension Output 200k Max 5.20 5.20 1.70 2.18 1.27 0.70 2.69 Min 0.189 0.189 0.050 0.078 0.042 0.020 0.094 Inches Nom 0.197 0.197 0.060 0.082 0.046 0.025 0.100 0.050 0.030 0.061 0.110 0.030 0.093 0.061 0.110 0.110 0.110 7 Max 0.205 0.205 0.067 0.086 0.050 0.028 0.106 6 3 4 5 C2 ROXXXXC Bottom View RF Bypass Equivalent RLC Model 0.05 pF* Cp Rm Lm Co = Cp + 0.05 pF *Case Parasitics Cm Temperature Characteristics The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. fC = f O , T C = T O 0 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) A E C B 8 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = TC - T O ( C ) (c)2010-2014 (c) byMurata Murata Electronics N.A., Inc. Copyright Manufacturing Co., Ltd. All Rights Reserved 2007 RO3112C (R) 4/14/14 Page 2 of 2 www.murata.com Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Murata: RO3112C