Introduction       专业音频工程师通常使用术语“平衡”来指代差分信号传输.这也告知了我们对称的概念,同时它在差分系统中也是非常重要的.在差分系统中,驱动器有平衡的输出,传输线有平衡的特性,并且接收器有平衡的输入.       通常由两个方法用来处理差分信号:电子法和变压器法.1. 电子的方法有着如成本低.尺寸和重量小以及优异的低频.直流响应等特点.2. 变压器提供的好处是优异的共模抑制比.直流隔离.无功耗(效率几乎为100%),并且抗恶劣的EMC环境干扰.       本文着重…

In my previous blog on "How to evaluate a transimpedance amplifier, part 1", we looked at the OPA857 performance, but didn’t go in depth in explaining how those measurements were taken.  Now that we’ve have established a reference, let’s work th…

In this blog, I want take a different approach and describe the technical challenge encountered while bench characterizing the OPA857, a dedicatedtransimpedance amplifier (TIA) with two internal gain settings operating on a +3.3 V supply supporting a…

Driver Amplifiers For Analog-To-Digital Converters What amplifiers are used to drive analog-to-digital converters (ADCs)? Possibilities include single-ended and differential inputs and outputs, plus voltage feedback (VFB) or current feedback (CFB) in…

Transimpedance amplifiers (TIAs) act as front-end amplifiers for optical sensors such as photodiodes, converting the sensor’s output current to a voltage. TIAs are conceptually simple: a feedback resistor (RF) across an operational amplifier (op amp)…

在Ubuntu上安装Apache,每次重启,都会出现以下错误提示: Could not reliably determine the server’s fully qualified domain name, using 127.0.1.1 for ServerName 解决办法 修改 httpd.conf 文件 打开终端,输入以下命令: sudo vi /etc/apache2/httpd.conf 默认情况下,这个是一个空文件,在文件中加入以下内容: ServerName localhost…

今天看到一篇关于检测的论文<SqueezeDet: Unified, Small, Low Power Fully Convolutional Neural Networks for Real-Time Object Detection for Autonomous Driving>,论文中的效果还不错,后来查了一下,有一个Tensorflow版本的实现,因此在自己的机器上配置了Tensorflow的环境,然后将其给出的demo跑通了,其中遇到了一些小问题,通过查找网络上的资料解决掉了,在这里…

Xiang Bai--[CVPR2016]Multi-Oriented Text Detection with Fully Convolutional Networks 目录 作者和相关链接 方法概括 方法细节 创新点和贡献 实验结果 问题讨论 总结与收获点 作者和相关链接 作者: paper下载 方法概括 Step 1--文本块检测: 先利用text-block FCN得到salient map,再对salient map进行连通分量分析得到text block: Step 2--文本线形成:…

1>.Operational Amplifiers:different from the resistor,the inductor and the capacitor,it's a multi-terminal element,also an active and intergrated device,it has two function,operation and amplification. 2>.OP package type: DIP package,SOP package,and…

The author has a course on web: http://brickisland.net/DDGSpring2016/ It has more reading assignments and sliders which are good for you to understand ddg. ------------------------------------------------------------- DISCRETE DIFFERENTIAL GEOMETRY :…