RO3101E * * * * Designed for European 433.92 MHz SRD Transmitters Very Low Series Resistance Quartz Stability Complies with Directive 2002/95/EC (RoHS) 433.92 MHz SAW Resonator Pb The RO3101E 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 433.92 MHz. This SAW is designed specifically for remote control and wireless security transmitters operating in Europe under ETSI I-ETS 300 220 regulations. Absolute Maximum Ratings Rating Value Units Input Power Level 0 dBm DC voltage 12 VDC Storage Temperature Range -40 to +125 C Operating Temperature Range -40 to +105 C 260 C Soldering Temperature (10 seconds / 5 cycles maximum) Electrical Characteristics Characteristic Center Frequency (+25 C) Sym fC Absolute Frequency Quality Factor Temperature Stability Frequency Aging 2,3,4,5 fC Tolerance from 433.920 MHz Insertion Loss IL Unloaded Q QU 50 Loaded Q QL Turnover Temperature TO Turnover Frequency fO Minimum 1.4 10 FTC |fA| Units 433.995 MHz 75 kHz 2.2 dB 35 C 1228 25 fC 6,7,8 Absolute Value during the First Year Maximum 8280 5,6,7 Frequency Temperature Coefficient Typical 433.845 2,5,6 0.032 10 1 DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Notes SM3030-6 Case 3.0 X 3.0 5 1.0 ppm/C2 ppm/yr M 17.5 53.5 H 2.5 fF Motional Resistance RM Motional Inductance LM Motional Capacitance CM Shunt Static Capacitance CO 5, 6, 9 2.5 pF LTEST 2, 7 53.2 nH Test Fixture Shunt Inductance 5, 7, 9 Lid Symbolization (in addition to Lot and/or Date Codes) Standard Reel Quantity 701 // 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 C2 C. The design, manufacturing process, and specifications of this device are www.RFM.com E-mail: info@rfm.com (c) 2008-2011 by RF Monolithics, Inc. 7. 8. 9. 10. 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. Tape and Reel Standard Per ANSI / EIA 481. Page 1 of 2 RO3101E - 6/21/11 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. Power Test Connection 1 NC 2 Terminal 3 NC 4 NC 5 Terminal 6 NC 50 Source at F C P INCIDENT Low-Loss Matching Network to 50 P REFLECTED 1 6 2 3 5 4 Typical Application Circuits B G C H Typical Low-Power Transmitter Application 1 6 1 6 200k +9VDC Modulation Input A 2 5 E F 2 5 C1 I 47 L1 (Antenna) 4 3 1 3 4 6 D 2 3 5 4 J C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Case Dimensions Output 200k mm Dimension A B C D E F G H I J +VDC Inches Min Nom Max Min Nom Max 2.87 2.87 1.12 0.77 2.67 1.47 0.72 1.37 0.47 1.17 3.00 3.00 1.25 0.90 2.80 1.60 0.85 1.50 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 C1 +VDC L1 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass Equivalent LC Model 0.05 pF* Co = Cp + 0.05 pF Cp Typical Test Circuit 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) 2008-2011 by RF Monolithics, Inc. Page 2 of 2 RO3101E - 6/21/11