For wireless digital communications, digital user signal is usually at first converted into analog domain and then modulated to radio frequency by one or two steps.

对于无线数字通信而言，通常将数字用户信号首先转换到模拟域中，然后通过一个或两个步骤将其调制到无线电频率。

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The temperature information acquisition unit based on C8051F330 is composed of processor, analog front-end operational amplifier, serial port communications and so on.

基于C8051F330的温度信息采集器，由处理器、模拟前端运算放大器和串口通讯等组成。

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Graduates will be able to demonstrate troubleshooting skills of computer and network technology, analog and digital electronics, and wireless communications equipment.

毕业生可显示故障的计算机和网络技术，模拟和数字电子技术和无线通信设备。

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Exar, a semiconductor company, designs, develops and markets analog and mixed-signal integrated circuits for use in communications, video and imaging products.

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Patriot missile components including advanced radar waveguides, microwave devices, high-speed analog to digital converters, microprocessors, precision gimbals for the missile-seeker system, highly miniaturized radio frequency communications, on-board sensors, advanced signal-processing systems.

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