RO3104E

• • • • • • • Ideal for 303.825 MHz Remote Control and Security Transmitters Very Low Series Resistance Quartz Frequency Stability Complies with Directive 2002/95/EC (RoHS) Tape and Reel Standard per ANSI/EIA-481 Moisture Sensitivity Level: 1 AEC-Q200 Qualified RO3104E RoHS Compliant 303.825 MHz SAW Resonator The RO3104E 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 303.825 MHz. This SAW is designed specifically for AM transmitters used in wireless security and remote control applications. Absolute Maximum Ratings Rating Value Units CW RF Power Dissipation (See Typical Test Circuit) 0 dBm DC Voltage Between Terminals (Observe ESD Precautions) 12 VDC Case Temperature -40 to +85 °C +260 °C Soldering Temperature (10 seconds, 5 cycles maximum) SM3030-6 Case Electrical Characteristics Characteristic Frequency, +25 °C Sym Nominal Frequency Tolerance from 303.825 MHz Insertion Loss Quality Factor Temperature Stability Frequency Aging Notes fC IL 1.35 Unloaded Q QU 10000 50 Loaded Q QL Turnover Temperature TO Turnover Frequency fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| Maximum Units 303.900 MHz ±75 kHz 2.0 dB 40 °C 1400 10 25 10 1.0 ppm/°C2 ppm/yr M 16  Motional Inductance LM 85 µH Motional Capacitance CM 3.2 fF Transducer Static Capacitance CO 3.2 pF LTEST 85 nH Motional Resistance RM Test Fixture Shunt Inductance Lid Symbolization Standard Reel Quantity Typical 303.750 fC DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Minimum 690, YWWS 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. RO3104E (R) 12/07/2021 Page 1 of 3 www.rfmi.co 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 NC 2 Terminal 3 NC 4 NC 5 Terminal 6 NC 6 690 YWWS A 2 5 E F The curve shown accounts for resonator contribution only and does not include external LC component temperature effects. fC = f O , T C = T O 0 G C 1 Temperature Characteristics Connection 1 0 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) Electrical Connections -200 -80 -60 -40 -20 H 6 1 5 2 4 3 -200 0 +20 +40 +60 +80 T = TC - T O ( °C ) I Characterization Test Circuit Inductor LTEST is tuned to resonate with the static capacitance, CO, at FC. 3 4 D J 6 1 From 50  Network Analyzer 5 2 4 3 To 50  Network Analyzer K L N K Power Dissipation Test N 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 Low-Loss Matching Network to 50  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 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 Equivalent RLC Model +VDC L1 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 ©2010-2014 by RFM Integrated Device, Inc. RO3104E (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. RO3104E (R) 12/07/2021 Page 3 of 3 www.rfmi.co