ADF4351在机载导航设备通用模拟器中的应用  

ADF4351 in airborne radio navigatione quipment application of general purpose simulator

作　　者：李文海[1] 唐曦[1] 白惠文[2] 陈明强[3] 

机构地区：[1]海军航空工程学院科研部研究生四队,烟台264001 [2]海军航空工程学院接改装训练大队,烟台264001 [3]中国人民解放军92514部队,烟台264007

出　　处：《电子测量技术》2017年第8期18-22,26,共6页Electronic Measurement Technology

摘　　要：为解决机载导航设备模拟器数量繁多,不利于自动测试系统集成的问题,设计了一种通用化的信号模拟器,以ADF4351为核心构成本振信号源,实现了宽频带、频率可调的功能。首先,分析了ADF4351的基本原理和工作特性;然后,介绍了频率合成器的详细设计,通过USB外设控制器芯片CY7C68013A,上位机控制ADF4351产生特定频率的射频输出;最后,以高度表信号模拟器本振为例,用频谱仪测试了4.3GHz射频输出下的相位噪声和杂散抑制。实验表明,设计的频率合成器可以实现35 MHz^4.4GHz的低相噪、稳定频率输出。For the purpose of solving the problems that the quantity of airborne navigation equipment simulator is large, which is not conducive to the integration of automatic test system, a generalized signal simulator is designed, and the ADF4351 is used as the core to constitute the local oscillator signal source, realizing wide frequency band and frequency adjustable function. First, the basic principles and working characteristics of the ADF4351 are analyzed. Then, the detailed design method of the frequency synthesizer is introduced. Through the USB peripheral controller chip CY7C68013A, the host computer controls the ADF4351 to produce the specific frequency RF output. At last, with altimeter signal simulator for example, the phase noise and spurious suppression of the 4. 3 GHz RF output are measured by a spectrum analyzer. Experiments show that the designed frequeney synthesizer can achieve low phase noise and stable frequency output from 35 MHz to 4.4 GHz.

关 键 词：本振信号源 ADF4351 CY7C68013A 频率合成器 

分 类 号：TN742[电子电信—电路与系统]