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National Semiconductor推出低相位噪声的锁相环路/压控振荡器二合一芯片LMX2531可在765~2790MHz的频率范围内操作,噪声低至-160dBc/Hz以下,适用于移动电话网络设备、汽车电子系统、卫星接收系统以及测试测量仪表等。LMX2531采用Δ-Σ分数N锁相环路结构——这是专为3G通信网络
National Semiconductor Introduces Low Phase Noise Phase-Locked Loop / Voltage-Controlled Oscillator The 2-in-1 chip LMX2531 operates from 765 to 2790MHz with noise levels below -160dBc / Hz for mobile phone network devices, automotive electronics Systems, satellite reception systems and test and measurement instruments. The LMX2531 features a delta-sigma fractional-N phase-locked loop architecture - which is designed for 3G communication networks