RO3073E-11

RO3073E-11 • • • • • 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 RoHS Compliant 315.00 MHz SAW Resonator The RO3073E-11 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 315.00 MHz. Absolute Maximum Ratings Value Units Input Power Level Rating 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 SM3030-6 Case Electrical Characteristics Characteristic Frequency, +25 °C Sym fC Absolute Frequency Temperature Stability Frequency Aging 1.6 Unloaded Q QU 8200 50 Loaded Q QL 1350 Turnover Temperature TO Turnover Frequency fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| 10 Maximum Units 315.075 MHz ±75 kHz 2.4 dB 10 35 °C 25 1.0 ppm/°C2 ppm/yr M Motional Resistance RM 19.8  Motional Inductance LM 82 µH Motional Capacitance CM 3.1 fF Shunt Static Capacitance CO 4.1 pF LTEST 63 nH Test Fixture Shunt Inductance Lid Symbolization: Y = Year, WW = Week, S = Shift Standard Reel Quantity Typical 314.925 IL DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Minimum fC Tolerance from 315.00 MHz Insertion Loss Quality Factor Notes 909, YWWS Reel Size 13 Inch © 2009 by RFM Integrated Device, Inc. RO3073E-11 (R) 09/20/2021 4000 Pieces / Reel Page 1 of 3 www.rfmi.co Temperature Characteristics Electrical Connections B Pin 1 NC 2 Terminal 3 NC 4 NC 5 Terminal 6 NC 6 A 2 5 3 4 fC = f O , T C = T O 0 G C 1 E F The curve shown accounts for resonator contribution only and does not include external LC component temperature effects. Connection 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) 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. -200 0 +20 +40 +60 +80 -200 -80 -60 -40 -20 H 6 1 5 2 4 3 T = TC - T O ( °C ) I Characterization Test Circuit Inductor LTEST is tuned to resonate with the static capacitance, CO, at FC. D J 6 1 From 50  Network Analyzer 5 2 4 3 To 50  Network Analyzer K L N K N Power Dissipation Test O N M M 50  Source at F C Case and Typical PCB Land Dimensions Ref A B C D E F G H I J K L M N O Min 2.87 2.87 1.12 0.77 2.67 1.47 0.72 1.37 0.47 1.17 mm Nom 3.00 3.00 1.25 0.90 2.80 1.60 0.85 1.50 0.60 1.30 3.20 1.70 1.05 0.81 0.38 Max 3.13 3.13 1.38 1.03 2.93 1.73 0.98 1.63 0.73 1.43 Min 0.113 0.113 0.044 0.030 0.105 0.058 0.028 0.054 0.019 0.046 P INCIDENT P REFLECTED Inches Nom 0.118 0.118 0.049 0.035 0.110 0.063 0.033 0.059 0.024 0.051 0.126 0.067 0.041 0.032 0.015 Max 0.123 0.123 0.054 0.040 0.115 0.068 0.038 0.064 0.029 0.056 Low-Loss Matching Network to 50  1 6 5 4 Typical Low-Power Transmitter Application Modulation Input 200k  +9VDC C1 47 L1 (Antenna) 1 6 2 3 5 4 C2 ROXXXXC Bottom View RF Bypass 470 Typical Local Oscillator Application Output 200k  C1 +VDC L1 Equivalent RLC Model 0.05 pF* Cp Lm 3 Example Application Circuits +VDC Rm 2 1 Co = Cp + 0.05 pF 6 2 3 5 4 C2 *Case Parasitics ROXXXXC Bottom View RF Bypass Cm © 2009 by RFM Integrated Device, Inc. RO3073E-11 (R) 09/20/2021 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. © 2009 by RFM Integrated Device, Inc. RO3073E-11 (R) 09/20/2021 Page 3 of 3 www.rfmi.co