RO3104A

AEC-Q200 This component was always RoHS compliant from the first date of manufacture. • • • • • • Designed for 303.825 MHz Transmitters Very Low Series Resistance Quartz Stability Surface-mount Ceramic Case Complies with Directive 2002/95/EC Tape and Reel Standard per ANSI/EIA-481 RO3104A RoHS Compliant 303.825 MHz SAW Resonator The RO3104A is a one-port surface-acoustic-wave (SAW) resonator packaged in a surface-mount ceramic case. It provides reliable, fundamental-mode quartz frequency stabilization of fixed-frequency transmitters operating at 303.825 MHz. The RO3104A is designed specifically for remote-control and wireless security applications. Absolute Maximum Ratings Rating Value CW RF Power Dissipation (See Typical Test Circuit) dBm ±30 VDC -40 to +85 °C 260 °C DC Voltage Between Terminals (Observe ESD Precautions) Case Temperature Soldering Temperature (10 seconds / 5 cycles maximum) Electrical Characteristics Characteristic Frequency, +25 °C Sym Nominal Frequency Tolerance from 303.825 MHz Insertion Loss Quality Factor Temperature Stability Frequency Aging Notes fC SM5035-4 Case Minimum Typical 303.750 fC IL 1.5 Unloaded Q QU 11,000 50 Loaded Q QL 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 Units 0 Maximum Units 303.900 MHz ±75 kHz 2.0 dB 40 °C 1,460 10 25 1.0 ppm/°C2 ppm/yr M Motional Resistance RM 15.4  Motional Inductance LM 88.4 µH Motional Capacitance CM 3.1 fF CO 3.3 pF LTEST 82 nH Transducer Static Capacitance Test Fixture Shunt Inductance Lid Symbolization 662, YYWWS 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. © 2014 by RFM Integrated Device, Inc. RO3104A (R) 06/11/2021 Page 1 of 3 www.rfmi.co Electrical Connections Equivalent RLC Model q 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. Case Ground Case Ground S C M The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. = 0 .0 5 p F (C a s P a r a s t c s ) = S A W S ta t c C a p a c ta n c = C S + C P P S M fC = f O , T C = T O 0 0 -50 -50 -100 -100 -150 -150 -200 -80 -60 -40 -20 Case From 50  Network Analyzer -200 0 +20 +40 +60 +80 T = TC - T O ( °C ) To 50  Network Analyzer T o p V ie w S id e V ie w B C B o tto m V ie w E ) ) 1 A POWER TEST Low-Loss Matching Network to 50  2 Terminal G 1 ) NC NC D Terminal P INCIDENT - P REFLECTED CW RF Power Dissipation = I Typical Application Circuits I Typical Low-Power Transmitter Application H H +9VDC Modulation Input R M (f-f o) / fo (ppm) ELECTRICAL TEST 50  Source P at F C REFLECTED L C C C Temperature Characteristics The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. INCIDENT P C Terminal Typical Test Circuit P C Terminal J H 200k  C1 47 L1 (Antenna) K L C2 RO3XXXA Bottom View RF Bypass 470 PCB Footprint Typical Local Oscillator Applications Output +VDC C1 +VDC L1 C2 RO3XXXA Bottom View © 2014 by RFM Integrated Device, Inc. RO3104A (R) 06/11/2021 RF Bypass Dimensions A B C D E F G Page 2 of 3 Min 4.87 3.37 1.45 1.35 0.67 0.37 1.07 Millimeters Nom 5.00 3.50 1.53 1.43 0.80 0.50 1.20 Max 5.13 3.63 1.60 1.50 0.93 0.63 1.33 Min 0.191 0.132 0.057 0.040 0.026 0.014 0.042 Inches Nom 0.196 0.137 0.060 0.057 0.031 0.019 0.047 Max 0.201 0.142 0.062 0.059 0.036 0.024 0.052 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. © 2014 by RFM Integrated Device, Inc. RO3104A (R) 06/11/2021 Page 3 of 3 www.rfmi.co