RFM products are now Murata products. RO3156D/D-1/D-2 * * * * Designed for 868.95 MHz SRD Transmitters Very Low Series Resistance Quartz Stability Complies with Directive 2002/95/EC (RoHS) Pb The RO3156D is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case. It provides reliable, fundamental-mode stabilization of fixed-frequency transmitters operating at 868.95 MHz. This SAW is designed specifically for SRD remote control and security transmitters operating under ETSI EN 300 220 regulations. 868.95 MHz SAW Resonator Absolute Maximum Ratings Rating Value Units 10 dBm 12 VDC Input Power Level DC Voltage Storage Temperature -40 to +85 C 260 C Soldering Temperature, 10 seconds / 5 cycles maximum SM3838-6 Case 3.8 X 3.8 Electrical Characteristics Characteristic Frequency, +25 C Sym fC RO3156D-1 RO3156D-2 Tolerance from 916.5 MHz Notes RO3156D 2, 3, 4, 5 RO3156D Minimum Typical Maximum 868.750 869.150 868.800 869.100 868.850 869.050 150 RO3156D-2 IL Quality Factor Unloaded Q QU 50 Loaded Q QL Turnover Temperature TO Turnover Frequency fO Frequency Aging 2, 5, 6 Frequency Temperature Coefficient FTC Absolute Value during the First Year |fA| dB 6300 5, 6, 7 850 10 1 5 2.5 25 40 C fc MHz 0.032 ppm/C2 ppm 10 1.0 M 15.7 18.1 H Motional Resistance RM Motional Inductance LM Motional Capacitance CM 1.85 fF Transducer Static Capacitance CO 5, 6, 9 2.2 pF LTEST 2, 7 15.2 nH Test Fixture Shunt Inductance Lid Symbolization Standard Reel Quantity 1.20 6, 7, 8 DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model kHz 100 Insertion Loss Temperature Stability MHz 200 fC RO3156D-1 Units 5, 6, 7, 9 RO3156D: 715, RO3156D-1: 924, RO3156D-2: 925 //YWWS Reel Size 7 Inch 10 Reel Size 13 Inch 500 Pieces / Reel 3000 Pieces / Reel CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. 2. 3. 4. 5. 6. 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. The design, manufacturing process, and specifications of this device are subject to change without notice. 7. 8. 9. 10. (c)2010-2015 byMurata Murata Electronics N.A., Inc. Copyright (c) Manufacturing Co., Ltd. All Rights Reserved 2007 RO3156D/D-1/D-2 (R) 2/5/15 Page 1 of 2 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. Tape and Reel Standard Per ANSI/EIA 481. www.murata.com agc 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. B NC 2 Terminal 3 NC 4 NC 5 NC 6 Terminal 7 NC 8 NC 6 1 From 50 Network Analyzer G C Parameter Test Circuit Connection 1 5 2 4 3 To 50 Network Analyzer Power Test Circuit H 6 1 6 5 A 2 E 1 5 2 4 3 50 Source at F C I P INCIDENT Low-Loss Matching Network to 50 P REFLECTED 1 6 2 3 5 4 4 3 D J Example Application Circuits Typical Low-Power Transmitter Application Modulation Input 200k +9VDC C1 47 L1 (Antenna) 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Output 200k +VDC C1 +VDC L1 Case Dimensions A B C D E G H I J mm Nom 3.80 3.80 1.30 1.10 2.54 1.00 2.00 0.60 1.80 Min 3.60 3.60 1.10 0.95 2.39 0.90 1.90 0.50 1.70 Max 4.00 4.00 1.50 1.25 2.69 1.10 2.10 0.70 1.90 Min 0.142 0.142 0.043 0.037 0.094 0.035 0.748 0.020 0.067 Inches Nom 0.150 0.150 0.050 0.043 0.100 0.040 0.079 0.024 0.071 6 Max 0.157 0.157 0.060 0.049 0.106 0.043 0.083 0.028 0.075 Lm 4 RF Bypass The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. Co = Cp + 0.05 pF fC = f O , T C = T O 0 0 -50 -50 -100 -100 -150 -150 -200 -80 -60 -40 -20 *Case Parasitics -200 0 +20 +40 +60 +80 T = TC - T O ( C ) Cm (c)2010-2015 (c) byMurata Murata Electronics N.A., Inc. Copyright Manufacturing Co., Ltd. All Rights Reserved 2007 RO3156D/D-1/D-2 (R) 2/5/15 5 Temperature Characteristics 0.05 pF* Rm 3 C2 Equivalent RLC Model Cp 2 ROXXXXC Bottom View (f-fo ) / fo (ppm) Dimension 1 Page 2 of 2 www.murata.com Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Murata: RO3156D-2 RO3156D RO3156D-1