RO3112C

• • • • • • • RO3112C Ideal for European 433.420 MHz Remote Control and Security Transmitters Very Low Series Resistance Quartz Stability RoHS Complies with Directive 2002/95/EC (RoHS) Tape and Reel Standard per ANSI/EIA-481 Compliant Moisture Sensitivity Level: 1 AEC-Q200 Qualified 433.420 MHz SAW Resonator The RO3112C 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 433.42 MHz. This SAW is designed specifically for use in remote control and wireless security transmitters operating in Europe under ETSI I-ETS 300 220. Absolute Maximum Ratings Value Units Input Power Level Rating 0 dBm DC Voltage 12 VDC Storage Temperature -40 to +85 °C 260 °C Soldering Temperature (10 seconds / 5 cycles maximum) SM5050-8 Case 5X5 Electrical Characteristics Characteristic Center Frequency +25 °C Sym fC Absolute Frequency Insertion Loss Temperature Stability Frequency Aging Typical 433.345 IL 1.2 Unloaded Q QU 8700 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 Minimum fC Tolerance from 433.420 MHz Quality Factor Notes Maximum Units 433.495 MHz ±75 kHz 1.5 dB 40 °C 920 10 25 10 1.0 ppm/°C2 ppm/yr M Motional Resistance RM 11.9  Motional Inductance LM 37.9 µH Motional Capacitance CM 3.6 fF Shunt Static Capacitance CO 3.8 pF LTEST 35.4 nH Test Fixture Shunt Inductance 657, YWWS Lid Symbolization (in addition to Lot and/or Date Codes) Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 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. RO3112C (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. Parameter Test Circuit Connection 1 NC 2 Terminal 3 NC 4 NC 5 NC 6 Terminal 7 NC 8 NC 7 From 50  Network Analyzer 1 8 6 2 4 5 To 50  Network Analyzer 3 Power Test Circuit 2 3 D 7 7 50  Source at F C 1 6 6 2 5 5 3 G Low-Loss Matching Network to 50  1 NC 2 8 NC 7 3 NC 4 6 5 NC NC Example Application Circuits 4 4 P INCIDENT P REFLECTED F Typical Low-Power Transmitter Application 200k  Modulation Input +9VDC C1 47 L1 (Antenna) L 1 2 8 J 7 M 6 3 4 5 C2 ROXXXXC Bottom View H RF Bypass 470 I Typical Local Oscillator Application Q Output 200k  +VDC C1 +VDC L1 K 1 2 8 Dimension A B C D E F G H I J K L M N O P Q Min 4.80 4.80 1.30 1.98 1.07 0.50 2.39 mm Nom 5.00 5.00 1.50 2.08 1.17 0.64 2.54 1.27 0.76 1.55 2.79 0.76 2.36 1.55 2.79 2.79 2.79 Max 5.20 5.20 1.70 2.18 1.27 0.70 2.69 Min 0.189 0.189 0.050 0.078 0.042 0.020 0.094 Inches Nom 0.197 0.197 0.060 0.082 0.046 0.025 0.100 0.050 0.030 0.061 0.110 0.030 0.093 0.061 0.110 0.110 0.110 7 Max 0.205 0.205 0.067 0.086 0.050 0.028 0.106 6 3 4 5 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. fC = f O , T C = T O 0 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) A NC 8 657 YWWS 1 E C B 8 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = TC - T O ( °C ) ©2010-2014 by RFM Integrated Device, Inc. RO3112C (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. RO3112C (R) 12/07/2021 Page 3 of 3 www.rfmi.co