RFM products are now Murata products. RO3156E/E-1/E-2 Designed for European 868.95 MHz SRD Transmitters Very Low Series Resistance Quartz Stability 868.950 MHz Pb Complies with Directive 2002/95/EC (RoHS) SAW Resonator The RO3156E 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 868.95 MHz.This SAW is designed specifically for SRD remote control and wireless security transmitters operating under ETSI EN 300 220. Absolute Maximum Ratings Rating Value Units Input Power Level 0 dBm DC Voltage 12 VDC Storage Temperature -40 to +125 C SM3030-6 3 x 3 mm Case Operating Temperature Range -40 to +125 C Soldering Temperature, 10 seconds / 5 cycles maximum +260 C Electrical Characteristics Characteristic Sym Notes Minimum Typical Maximum Units Frequency, +25 C RO3156E 868.750 869.150 RO3156E-1 f 868.800 869.100 MHz C RO3156E-2 868.850 869.050 2,3,4,5 Tolerance from 868.95 MHz RO3156E 200 RO3156E-1 f 150 kHz C RO3156E-2 100 Insertion Loss IL 2,5,6 1.2 2.0 dB Quality Factor Unloaded Q Q 5,6,7 6700 U 50 Loaded Q Q 800 L Temperature Stability Turnover Temperature T 10 25 40 C O Turnover Frequency f 6,7,8 f kHz O C 2 Frequency Temperature Coefficient FTC 0.032 ppm/C Frequency Aging Absolute Value during the First Year fA 1 <10 ppm/yr DC Insulation Resistance between Any Two Terminals 5 1.0 M R RF Equivalent RLC Model Motional Resistance 14.1 M Motional Inductance L 5, 6, 7, 9 17.2 H M Motional Capacitance C 2.0 fF M Shunt Static Capacitance C 5, 6, 9 2.3 pF O L Test Fixture Shunt Inductance 2, 7 14.6 nH TEST Lid Symbolization (in addition to Lot and/or Date Codes) RO3156E: 707, RO3156E-1: 708, RO3156E-2: 926 // YWWS Standard Reel Quantity Reel Size 7 Inch 500 Pieces / Reel 10 Reel Size 13 Inch 3000 Pieces / Reel 2010-2015 by Murata Electronics N.A., Inc. RO3156E/E-1/E-2 (R) 2/5/15 Page 1 of 3 www.murata.com 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 less. 7. Derived mathematically from one or more of the following directly measured C parameters: f , IL, 3 dB bandwidth, f versus T , and C . Aging may exceed the specification for prolonged temperatures above +65 C. C C C O Typically, aging is greatest the first year after manufacture, decreasing in subse- 8. Turnover temperature, T , is the temperature of maximum (or turnover) O quent 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, IL , 2 C MIN calculated from: f = f 1 - FTC (T -T ) . Typically oscillator T is O O C O with the resonator in the 50 test system (VSWR 1.2:1). The shunt approximately equal to the specified resonator T . O inductance, L , is tuned for parallel resonance with C at f . Typically, TEST O C 9. This equivalent RLC model approximates resonator performance near the f or f is approximately equal to the resonator f . OSCILLATOR TRANSMITTER C resonant frequency and is provided for reference only. The capacitance C is O 3. One or more of the following United States patents apply: 4,454,488 and the static (nonmotional) capacitance between the two terminals measured at low 4,616,197. frequency (10 MHz) with a capacitance meter. The measurement includes 4. Typically, equipment utilizing this device requires emissions testing and parasitic capacitance withNC pads unconnected. Case parasitic capacitance government approval, which is the responsibility of the equipment manufacturer. is approximately 0.05 pF. Transducer parallel capacitance can by calculated as: 5. Unless noted otherwise, case temperature T = +25 2 C. C C C -0.05pF. P O 6. The design, manufacturing process, and specifications of this device are subject 10. Tape and Reel Standard for ANSI / EIA 481. to change without notice. Temperature Characteristics Electrical Connections The curve shown accounts for resonator The SAW resonator is bidirectional and may be installed with either orientation. Pin Connection f = f , T = T C O C O The two terminals are interchangeable 1NC 0 0 and unnumbered. The callout NC 2Terminal -50 -50 indicates no internal connection. The NC 3NC pads assist with mechanical positioning -100 -100 4NC and stability. External grounding of the NC -150 -150 pads is recommended to help reduce 5Terminal BC GH -200 -200 -80 -60 -40 -20 0 +40 +60 +80 +20 1 6 6 1 T = T - T ( C ) C O 2 5 2 A EF 5 I Characterization Test Circuit Inductor L is tuned to resonate with the static capacitance, C , at F . TEST O C 3 4 4 3 D J 6 1 From 50 To 50 5 2 Network Analyzer Network Analyzer 4 3 Power Dissipation Test P INCIDENT Low-Loss 50 Source 2 3 Matching 1 at F C Network to 6 5 4 P REFLECTED 50 2010-2015 by Murata Electronics N.A., Inc. www.murata.com RO3156E/E-1/E-2 (R) 2/5/15 Page 2 of 3 (ppm) (f-f f ) o / o