基于AD9154的八通道信号产生器设计

本文设计了八通道信号产生器,以适应通信对抗装备的发展。JESD204B是一种高速串行总线协议,主要应用于转换器与FPGA的数据传输接口,和并行数据总线相比有着明显的优势。AD9154是一款具有JESD204B接口的四通道模数转换器(DAC)。现场可编程门阵列(FPGA)可产生数字波形信号,其高速串行收发器接口可通过JESD204B总线协议将波形数据发送给AD9154芯片产生模拟信号。使用2片AD9154与1片FPGA为核心器件,完成硬件电路和软件程序设计,最后测试了产生信号的技术指标。

Design of eight Channels Signal Generator Based on AD9154

An eight-channel signal generator is designed to adapt to the development of communication countermeasure equipment.JESD204 B is a high-speed serial bus protocol, which is usually used in the data transmission interface between converter and FPGA. It has obvious advantages over parallel data bus.AD9154 is a four-channel analog-to-digital converter(DAC) with JESD204 B interface. Filed Programmable Gate Array(FPGA) can generate digital waveform data, and its high-speed serial transceiver interface can send waveform data to AD9154 chip through JESD204 B bus protocol to produce analog signal. Using two AD9154 chips and one FPGA chip as the core device, the circuit and program are designed.Finally the technical index of the generator signal is measured.