RO3023A-1

RO3023A-1 • • • • • • Ideal for European 433.970 MHz Transmitters Very Low Series Resistance Quartz Stability Surface-Mount Ceramic Case Complies with Directive 2002/95/EC (RoHS) Tape and Reel Standard per ANSI/EIA-481 RoHS Compliant 433.970 MHz SAW Resonator The RO3023A-1 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 433.970 MHz. This SAW is designed specifically for remote-control and wireless security transmitters operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100. Absolute Maximum Ratings Rating Value Units +0 dBm CW RF Power Dissipation (See: Typical Test Circuit) DC voltage Between Terminals (Observe ESD Precautions) Case Temperature ±30 VDC -40 to +85 °C 260 °C Soldering Temperature (10 seconds / 5 cycles max.) Electrical Characteristics Characteristic Center Frequency (+25 °C) Absolute Frequency Tolerance from 433.920 MHz Insertion Loss Quality Factor Temperature Stability Frequency Aging Sym fC Minimum 433.920 Typical fC IL 3.0 Unloaded Q QU 12000 50 Loaded Q QL Turnover Temperature TO Turnover Frequency fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Notes SM5035-4 Maximum Units ±50 kHz 4.0 dB 40 °C 434.020 MHz 3500 10 25 10 1.0 ppm/°C2 ppm/yr M Motional Resistance RM 40.9  Motional Inductance LM 180 µH Motional Capacitance CM .75 fF Shunt Static Capacitance CO 1.9 pF LTEST 71.4 nH Test Fixture Shunt Inductance Lid Symbolization (in addition to Lot and/or Date Codes) 718, YYWWS CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. The design, manufacturing process, and specifications of this device are subject to change. 2. US or International patents may apply. 3. RoHS compliant from the first date of manufacture. Copyright © 2004 by RFM Integrated Device, Inc. RO3023A-1 (R) 09/20/2021 Page 1 of 3 www.rfmi.co Electrical Connections Equivalent LC Model 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. From 50  Network Analyzer To 50  Network Analyzer POWER TEST 50  Source P at F C REFLECTED Cm Temperature Characteristics The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. Typical Circuit Land Pattern 0 -50 -50 -100 -100 -150 -150 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = T C - T O ( °C ) The circuit board land pattern shown below is one possible design. The optimum land pattern is dependent on the circuit board assembly process which varies by manufacturer. The distance between adjacent land edges should be at a maximum to minimize parasitic capacitance. Trace lengths from terminal lands to other components should be short and wide to minimize parasitic series inductances. (4 Places) Typical Dimension: 0.010 to 0.047 inch (0.25 to 1.20 mm) NC NC fC = f O , T C = T O 0 Board Terminal Terminal Case Design P INCIDENT - P REFLECTED CW RF Power Dissipation = *Case Parasitics (f-fo) / fo (ppm) ELECTRICAL TEST Low-Loss Matching Network to 50  Lm Rm The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. INCIDENT Co = Cp + 0.05 pF Cp Terminal Typical Test Circuit P 0.05 pF* Case Ground Case Ground Terminal Top View Typical Application Circuits Side View B Bottom View C E (3x) Typical Low-Power Transmitter Application +9VDC C1 F (4x) 47 L1 (Antenna) 3 A Modulation Input 4 200k  1 2 C2 RO3XXXA Bottom View G (1x RF Bypass D 470 Typical Local Oscillator Applications Output +VDC C1 Dimension s +VDC L1 C2 RO3XXXA Bottom View RF Bypass Copyright © 2004 by RFM Integrated Device, Inc. RO3023A-1 (R) 09/20/2021 Page 2 of 3 Millimeters Min Nom Inches Max Min Nom Max A 4.87 5.0 5.13 .191 .196 .201 B 3.37 3.5 3.63 .132 .137 .142 C 1.45 1.53 1.60 .057 .060 .062 D 1.35 1.43 1.50 .040 .057 .059 E .67 .80 .93 .026 .031 .036 F .37 .50 .63 .014 .019 .024 G 1.07 1.20 1.33 .042 .047 .052 www.rfmi.co Recommended Reflow Profile 1. Preheating shall be fixed at 150~180ºC for 60~90 seconds. 2. Ascending time to preheating temperature 150ºC shall be 30 seconds min. 3. Heating shall be fixed at 220ºC for 50~80 seconds and at 260ºC +0/-5ºC peak (10 seconds). 4. Time: 5 times maximum. Copyright © 2004 by RFM Integrated Device, Inc. RO3023A-1 (R) 09/20/2021 Page 3 of 3 www.rfmi.co