* * * * Ideal for European 868.95 MHz Transmitters Very Low Series Resistance Quartz Stability Complies with Directive 2002/95/EC (RoHS) RO3156E RO3156E-1 RO3156E-2 Pb 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 remote-control and wireless security transmitters operating under ETSI EN 300 220. Absolute Maximum Ratings Rating Value Units 0 dBm Input Power Level DC Voltage 12 VDC Storage Temperature -40 to +125 C Operating Temperature Range -40 to +125 C +260 C Soldering Temperature, 10 seconds / 5 cycles maximum 868.950 MHz SAW Resonator SM3030-6 Case 3.0 X 3.0 Electrical Characteristics Characteristic Sym Frequency, +25 C RO3156E RO3156E-1 RO3156E-2 RO3156E RO3156E-1 RO3156E-2 Tolerance from 868.95 MHz Insertion Loss Quality Factor Temperature Stability Unloaded Q 50 Loaded Q Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Motional Resistance Motional Inductance Motional Capacitance Shunt Static Capacitance Test Fixture Shunt Inductance Lid Symbolization (in addition to Lot and/or Date Codes) Standard Reel Quantity Reel Size 7 Inch Reel Size 13 Inch Notes fC 2,3,4,5 Minimum Typical 868.750 868.800 868.850 fC IL QU QL TO fO 2,5,6 5,6,7 10 6,7,8 1.2 6700 800 25 fC Maximum 869.150 869.100 869.050 200 150 100 2.0 40 Units MHz kHz dB C kHz ppm/C2 1 ppm/yr 5 1.0 M RM 14.1 LM 5, 6, 7, 9 17.2 H CM 2.0 fF CO 5, 6, 9 2.3 pF LTEST 2, 7 14.6 nH RO3156E: 707, RO3156E-1: 708, RO3156E-2: 926 // YWWS 500 Pieces / Reel 10 3000 Pieces / Reel FTC |fA| 0.032 <10 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 +65C or less. Aging may exceed the specification for prolonged temperatures above +65C. 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 = +25C2C. The design, manufacturing process, and specifications of this device are subject to change without notice. www.RFM.com E-mail: info@rfm.com (c)2009 by RF Monolithics, Inc. 7. 8. 9. 10. 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 for ANSI / EIA 481. Page 1 of 2 RO3156E - 7/30/09 Power Test Electrical Connections 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 Pin Connection 1 NC 2 Terminal 3 NC 4 NC 5 Terminal 6 NC G C 1 6 A 2 5 50 Source at F C P INCIDENT Low-Loss Matching Network to 50 P REFLECTED 1 6 F 3 5 4 Typical Application Circuits H 6 1 5 2 Typical Low-Power Transmitter Application 200k E 2 I +9VDC Modulation Input C1 47 L1 (Antenna) 4 3 3 4 1 D J 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Case Dimensions Dimension A B C D E F G H I J Output 200k Min mm Nom Max Min Inches Nom Max 2.87 2.87 1.12 0.77 2.67 1.47 0.72 1.37 0.47 1.17 3.0 3.0 1.25 0.90 2.80 1.6 0.85 1.5 0.60 1.30 3.13 3.13 1.38 1.03 2.93 1.73 0.98 1.63 0.73 1.43 0.113 0.113 0.044 0.030 0.105 0.058 0.028 0.054 0.019 0.046 0.118 0.118 0.049 0.035 0.110 0.063 0.033 0.059 0.024 0.051 0.123 0.123 0.054 0.040 0.115 0.068 0.038 0.064 0.029 0.056 +VDC C1 +VDC L1 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass Equivalent LC Model 0.05 pF* Typical Test Circuit Co = Cp + 0.05 pF Cp The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. Rm Electrical Test Lm *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 6 From 50 Network Analyzer 5 2 4 3 To 50 Network Analyzer 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) 1 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = T C - T O ( C ) www.RFM.com E-mail: info@rfm.com (c)2009 by RF Monolithics, Inc. Page 2 of 2 RO3156E - 7/30/09