audio circuit

In the design of hardware platform, this paper expounds design process and principle of system power, decoding circuit, memory unit, audio interface unit, peripheral communication interface unit, display unit, keyboard input unit, simulation unit and spare interface unit.

在硬件平台的设计中，具体阐述了系统电源、系统译码电路、存储器单元、音频接口单元、外围通信接口单元、显示单元、键盘输入单元、仿真单元和备用接口单元的设计过程及其原理。

This paper explains the system design and the circuit design including power module, memory module, audio module and interface module.

详细介绍了OMAP平台的系统结构，并结合其特点，分别从电源模块、存储模块、音频模块、接口模块这四个方面描述了整套音频系统的硬件设计。

The Class D audio amplifier design completion, the circuit design to meet the requirements.

所设计的D类音频功放完成功能，电路设计符合要求。

The model's analog audio circuit board is isolated from the video board to avoid interference.

该模型的模拟音频电路板是分离的视频板,以避免干扰.

Principle Analysis and Fault Estimation of Double Audio Frequency Telephone set's Dialing Integrate Circuit

电话机双音频拨号集成电路原理及故障判断方法

Meanwhile, an audio circuit board is made to realize full duplex communication.

同时通过自制块语音编解码拓展板,实现全双工通信.

When it is applied to receive and demodulate the information of track detection and velocity transferred through audio track circuit, simulative experiment over computer shows that it satisfies Error Safety principle.

利用该方法解调音频轨道电路中所传输的列车检测信息和速度信息，计算机模拟实验证明满足接收的技术指标。