RO3101A-20

AEC-Q200 This component was always RoHS compliant from the first date of manufacture. • • • • • • • RO3101A-20 Ideal for European 433.92 MHz Transmitters Very Low Series Resistance Quartz Stability Surface-Mount Ceramic Case Passivation for Enhanced Reliability Complies with Directive 2002/95/EC (RoHS) Tape and Reel Standard per ANSI/EIA-481 RoHS 433.92 MHz SAW Resonator Compliant The RO3101A-20 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 433.92 MHz. This SAW is designed specifically for remote-control and wireless security transmitters operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100. Absolute Maximum Ratings SM5035-4 Rating Value Units CW RF Power Dissipation (See: Typical Test Circuit) +0 dBm DC voltage Between Terminals (Observe ESD Precautions) ±30 VDC -40 to +85 °C 260 °C Case Temperature Soldering Temperature (10 seconds / 5 cycles max.) Characteristic Center Frequency (+25 °C) Sym fC Absolute Frequency Temperature Stability Frequency Aging Typical IL 1.5 Unloaded Q QU 9000 50 Loaded Q QL 1458 Turnover Temperature TO Turnover Frequency fO fC Frequency Temperature Coefficient FTC 0.032 Absolute Value during the First Year |fA| 10 DC Insulation Resistance between Any Two Terminals RF Equivalent RLC Model Minimum 433.845 fC Tolerance from 433.920 MHz Insertion Loss Quality Factor Notes 10 25 1.0 Maximum 433.995 Units MHz ±75 kHz 2.2 dB 40 °C ppm/°C2 ppm/yr M Motional Resistance RM 19.4  Motional Inductance LM 63.8 µH Motional Capacitance CM 2.11 fF Shunt Static Capacitance Test Fixture Shunt Inductance CO 2.4 pF LTEST 55.1 nH 778, YYWWS Lid Symbolization (in addition to Lot and/or Date Codes) 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. © 2007 by RFM Integrated Device, Inc. RO3101A-20 (R) 06/14/2021 Page 1 of 4 www.rfmi.co Electrical Connections Typical Local Oscillator Applications Terminal Output Case Ground Case Ground 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. +VDC C1 +VDC Terminal L1 C2 RO3XXXA Bottom View Typical Test Circuit The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. RF Bypass Equivalent LC Model 0.05 pF* ELECTRICAL TEST Co = Cp + 0.05 pF Cp From 50  Network Analyzer To 50  Network Analyzer Rm Lm *Case Parasitics Cm Temperature Characteristics POWER TEST P INCIDENT 50  Source P at F C REFLECTED CW RF Power Dissipation = Low-Loss Matching Network to 50  Terminal NC NC Terminal P INCIDENT - P REFLECTED Typical Application Circuits Typical Circuit Board Land Pattern -100 -150 -150 -200 -80 -60 -40 -20 -200 0 +20 +40 +60 +80 T = T C - T O ( °C ) Typical Dimension: 0.010 to 0.047 inch (0.25 to 1.20 mm) 200k  L1 (Antenna) -50 -100 (4 Places) +9VDC C1 0 -50 The circuit board land pattern shown below is one possible design. The optimum land pattern is dependent on the circuit board assembly process which varies by manufacturer. The distance between adjacent land edges should be at a maximum to minimize parasitic capacitance. Trace lengths from terminal lands to other components should be short and wide to minimize parasitic series inductances. Typical Low-Power Transmitter Application Modulation Input fC = f O , T C = T O 0 (f-fo) / fo (ppm) The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. 47 C2 RO3XXXA Bottom View RF Bypass 470 © 2007 by RFM Integrated Device, Inc. RO3101A-20 (R) 06/14/2021 Page 2 of 4 www.rfmi.co Case Design Top View Side View B Bottom View C E (3x) 4 F (4x) A 3 1 2 G (1x D Dimensions Millimeters Inches Min Nom Max Min Nom Max A 4.87 5.00 5.13 0.191 0.196 0.201 B 3.37 3.50 3.63 0.132 0.137 0.142 C 1.45 1.53 1.60 0.057 0.060 0.062 D 1.35 1.43 1.50 0.040 0.057 0.059 E 0.67 0.80 0.93 0.026 0.031 0.036 F 0.37 0.50 0.63 0.014 0.019 0.024 G 1.07 1.20 1.33 0.042 0.047 0.052 © 2007 by RFM Integrated Device, Inc. RO3101A-20 (R) 06/14/2021 Page 3 of 4 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. © 2007 by RFM Integrated Device, Inc. RO3101A-20 (R) 06/14/2021 Page 4 of 4 www.rfmi.co