器件名称:
RO2188A
功能描述:
390.0 MHz SAW Resonator
文件大小:
98.28KB 共2页
简 介:
390.0 MHz Electrical Connections 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. SAW Resonator Terminal Equivalent LC Model NC NC Terminal Temperature Characteristics The curve shown on the right accounts for resonator contribution only and does not include LC component temperature contributions. Typical Test Circuit The test circuit inductor, LTEST, is tuned to resonate with the static capacitance, CO, at FC. ELECTRICAL TEST From 50 Network Analyzer To 50 Network Analyzer Typical Circuit Board Land Pattern 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. Case Design The case material is black alumina with contrasting symbolization. All pads are nominally centered with respect to the base and consist of 40 to 70 microinches electroless gold on 60-350 micorinches electroless nickel. Typical Application Circuits RF Monolithics, Inc……
