RFM products are now Murata products. RO3164A/A-1/A-2 • • • • • Designed for European 868.35 MHz SRD Transmitters Very Low Series Resistance Quartz Stability Surface-mount Ceramic Case Complies with Directive 2002/95/EC (RoHS) Pb 868.35 MHz SAW Resonator The RO3164A is a one-port surface-acoustic-wave (SAW) resonator packaged in a surface-mount ceramic case. It provides reliable, fundamental-mode quartz frequency stabilization of fixed-frequency transmitters operating at 868.35 MHz. The RO3164A is designed specifically for remote control and wireless security SRD transmitters operating under ETSI EN 300 220-2. Absolute Maximum Ratings Rating Value Units CW RF Power Dissipation +5 dBm DC Voltage Between Terminals ±30 VDC -40 to +85 °C 260 °C Case Temperature Soldering Temperature, 10 seconds / 5 cycles maximum SM5035-4 Electrical Characteristics Characteristic Frequency, +25 °C Sym fC RO3164A-1 RO3164A-2 Tolerance from 868.35 MHz Notes RO3164A 2,3,4,5 RO3164A Minimum Typical 868.550 868.200 868.500 868.250 868.450 Unloaded Q IL 2,5,6 1.3 QU 5,6,7 6600 50 Ω Loaded Q QL Turnover Temperature TO fO Turnover Frequency Frequency Aging Frequency Temperature Coefficient FTC Absolute Value during the First Year |fA| DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model RM Motional Inductance LM Motional Capacitance CM Shunt Static Capacitance CO LTEST Lid Symbolization (in addition to Lot and/or Date Codes) 2.0 dB 40 °C 800 10 6,7,8 1 5 Motional Resistance Test Fixture Shunt Inductance kHz ±100 Insertion Loss Temperature Stability MHz ±150 RO3164A-2 Quality Factor Units ±200 ΔfC RO3164A-1 Maximum 868.150 25 fC kHz 0.032 ppm/°C2 ppm/yr <±10 1.0 5, 6, 7, 9 MΩ 13.8 Ω 16.8 µH 2.0 fF 5, 6, 9 1.8 pF 2, 7 18.3 nH RO3164A: 660, RO3164A-1: 780, RO3164A-2: 868 // YYWWS CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. ©2010-2015 by Murata Electronics N.A., Inc. RO3164A/A-1/A-2 (R) 2/10/15 Page 1 of 3 www.murata.com 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 Ω 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 7. 8. 9. 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. 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. Typical Local Oscillator Applications Case Ground Case Ground Terminal Output +VDC C1 +VDC Terminal L1 C2 Typical Test Circuit The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. RO3XXXA Bottom View RF Bypass Typical Application Circuits ELECTRICAL TEST Typical Low-Power Transmitter Application To 50 Ω Network Analyzer From 50 Ω Network Analyzer +9VDC Modulation Input 200k Ω 47 C1 L1 (Antenna) C2 POWER TEST P INCIDENT 50 Ω Source P at F C REFLECTED RF Bypass RO3XXXA Bottom View Low-Loss Matching Network to 50 Ω 470 Terminal NC NC Terminal Equivalent RLC Model C CW RF Power Dissipation = P L M C P C C P INCIDENT - P REFLECTED C C S R M S O = 0 .0 5 p F (C a s e P a r a s itic s ) = S A W S ta tic C a p a c ita n c e = C S + C P M Temperature Characteristics fC = f O , T C = T O 0 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 ΔT = TC - T O ( °C ) ©2010-2015 by Murata Electronics N.A., Inc. RO3164A/A-1/A-2 (R) 2/10/15 Page 2 of 3 www.murata.com Case T o p V ie w S id e V ie w B C B o tto m V ie w E (3 x ) Dimensions A 4 F (4 x ) A 1 3 2 G (1 x ) D H I I Millimeters Inches Min Nom Max Min Nom Max 4.87 5.00 5.13 0.191 0.196 0.201 B 3.37 3.50 3.63 0.132 0.137 0.142 C 1.45 1.53 1.60 0.057 0.060 0.062 D 1.35 1.43 1.50 0.040 0.057 0.059 E 0.67 0.80 0.93 0.026 0.031 0.036 F 0.37 0.50 0.63 0.014 0.019 0.024 G 1.07 1.20 1.33 0.042 0.047 0.052 H - 1.04 - - 0.041 - I - 1.46 - - 0.058 - J - 3.01 - - 0.119 - K - 1.44 - - 0.057 - L - 1.92 - - 0.076 - I H H J H K L PCB Land Pattern Top View ©2010-2015 by Murata Electronics N.A., Inc. RO3164A/A-1/A-2 (R) 2/10/15 Page 3 of 3 www.murata.com