RO3120C

• • • • • • • RO3120C Ideal for 403.55 MHz 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 403.55 MHz SAW Resonator Compliant The RO3120C 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 403.55 MHz. Absolute Maximum Ratings Rating Value Input Power Level DC Voltage Storage Temperature Quality Factor Frequency Aging dBm 12 VDC °C 260 °C Sym fC Absolute Frequency Minimum 403.475 Typical fC Unloaded Q QU 14400 50 ohm Loaded Q QL 1000 IL Units MHz kHz 1.0 2.0 dB 25 40 °C Turnover Temperature TO fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| 10 10 Maximum 403.625 ±75 Turnover Frequency DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Notes 5 X 5 mm Tolerance from 433.420 MHz Insertion Loss Temperature Stability 0 -40 to +85 Soldering Temperature, 10 seconds / 5 cycles maximum Characteristic Center Frequency, +25 °C SM5050-8 Case Units 1.0 ppm/°C2 ppm/yr M Motional Resistance RM 12.4  Motional Inductance LM 70.6 µH Motional Capacitance CM 2.2 fF Shunt Static Capacitance CO 3.7 pF 811, 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. RO3120C (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. Power Test Connection 1 NC 2 Terminal 3 NC 4 NC 50  Source at F C NC P INCIDENT P REFLECTED 5 NC 6 Terminal 7 NC 8 NC Low-Loss Matching Network to 50  NC 1 2 3 8 NC 7 NC 4 6 5 NC NC Typical Application Circuits A 2 3 Typical Low-Power Transmitter Application 8 Modulation Input D 7 7 811 YWWS 1 E C B 8 200k  +9VDC C1 1 47 L1 (Antenna) 2 6 6 1 2 8 3 5 5 G 7 3 4 6 5 C2 ROXXXXC Bottom View 4 4 F RF Bypass 470 Typical Local Oscillator Application Case Dimensions Dimension A B C D E F G Output 200k  +VDC Min 4.80 4.80 mm Nom 5.00 5.00 2.39 2.08 1.17 0.64 2.54 Max 5.20 5.20 1.70 2.69 Min 0.189 0.189 Inches Nom 0.197 0.197 0.094 0.082 0.046 0.025 0.100 C1 +VDC L1 Max 0.205 0.205 0.067 1 2 8 7 3 4 6 5 C2 ROXXXXC Bottom View RF Bypass 0.106 Equivalent LC Model Typical Test Circuit 0.05 pF* The test circuit inductor, LTEST, is tuned to resonate with the static Co = Cp + 0.05 pF Cp capacitance, CO, at FC. *Case Parasitics Electrical Test Rm Lm Cm Temperature Characteristics 7 From 50  Network Analyzer 6 8 4 2 fC = f O , T C = T O To 50  Network Analyzer 0 0 3 -50 -50 -100 -100 -150 -150 (f-fo ) / fo (ppm) 5 The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. 1 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = T C - T O ( °C ) ©2010-2014 by RFM Integrated Device, Inc. RO3120C (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. RO3120C (R) 12/07/2021 Page 3 of 3 www.rfmi.co