RO3073D

RO3073D • • • • • • • Ideal for 315 MHz Remote Control and Security Transmitters Very Low Series Resistance Quartz Stability Complies with Directive 2002/95/EC (RoHS) Tape and Reel Standard per ANSI/EIA-481 Moisture Sensitivity Level:1 AEC-Q200 Qualified RoHS Compliant 315.0 MHz SAW Resonator The RO3073C 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 315.0 MHz. This SAW is designed specifically for remote control and wireless security transmitters. Absolute Maximum Ratings Rating Value Units 0 dBm Input Power Level DC Voltage Storage Temperature 12 VDC -40 to +85 °C 260 °C Soldering Temperature, 10 seconds / 5 cycles maximum SM3838-6 Case Electrical Characteristics Characteristic Frequency, +25 °C Sym fC Absolute Frequency Notes Minimum Typical 314.925 fC Tolerance from 315.0 MHz Insertion Loss IL 1.6 Quality Factor Unloaded Q QU 7700 50  Loaded Q QL Turnover Temperature TO Turnover Frequency fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| Temperature Stability Frequency Aging DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Maximu Units 315.075 MHz ±75 kHz 2.5 dB 40 °C 1300 10 25 ppm/°C2 ppm/yr 10 1.0 M  Motional Resistance RM 20.6 Motional Inductance LM 80.0 Motional Capacitance CM 3.2 fF Shunt Static Capacitance CO 3.94 pF 64.7 nH LTEST Test Fixture Shunt Inductance Lid Symbolization Standard Reel Quantity 29 µH 705, YWWS Reel Size 7 Inch Reel Size 13 Inch 500 Pieces / Reel 3000 Pieces / Reel 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. ©2010-2014 by RFM Integrated Device, Inc. RO3073D (R) 12/07/2021 Page 1 of 3 www.rfmi.co 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. B 1 Connection 1 NC 2 Terminal 3 NC 4 NC 5 Terminal 6 NC C G Power Test 50  Source at F C 5 E Low-Loss Matching Network to 50  P REFLECTED 6 1 5 2 4 1 6 D 3 5 4 Typical Low-Power Transmitter Application Modulation Input I 200k  +9VDC C1 47 L1 3 (Antenna) 4 3 2 Typical Application Circuits H 6 A 2 P INCIDENT J 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass 470 Dimension A B C D E G H I J mm Typical Local Oscillator Application Inches Min Nom Max Min Nom Max 3.60 3.60 1.00 0.95 2.39 0.90 1.90 0.50 1.70 3.80 3.80 1.20 1.10 2.54 1.0 2.0 0.6 1.8 4.0 4.0 1.40 1.25 2.69 1.10 2.10 0.70 1.90 0.14 0.14 0.04 0.037 0.090 0.035 0.75 0.020 0.067 0.15 0.15 0.05 0.043 0.10 0.04 0.08 0.024 0.07 0.16 0.16 0.055 0.05 0.110 0.043 0.83 0.028 0.075 Output 200k  +VDC C1 +VDC L1 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass Equivalent RLC Model 0.05 pF* Cp Rm Lm Co = Cp + 0.05 pF *Case Parasitics Cm Temperature Characteristics The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. Typical Test Circuit The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. fC = f O , T C = T O 1 5 2 4 3 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) 6 From 50  Network Analyzer 0 0 To 50  Network Analyzer -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = T C - T O ( °C ) ©2010-2014 by RFM Integrated Device, Inc. RO3073D (R) 12/07/2021 Page 2 of 3 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. ©2010-2014 by RFM Integrated Device, Inc. RO3073D (R) 12/07/2021 Page 3 of 3 www.rfmi.co