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8051参考设计，与其他8051的免费IP相比，文档相对较全，Oregano System 提供 This is version 1.3 of the MC8051 IP core. September 2002: Oregano Systems - Design & Consulting GesmbH Change history: - Improved tb_mc8051_siu_sim.vhd to verify duplex operation. - Corrected problem with duplex operat ...

大功率，远距离传输wifi模块

Abstract: High-performance base-station (BTS) receivers must meet half-IF spurious requirements, whichcan be achieved by using the proper RF mixer. To help engineers, this application note illustrates the

The XPS Ethernetlite peripheral does not provide any mechanism to access the Ethernet PHYregisters. These registers are used to configure auto negotiation parameters and to obtain PHYstatus. This application note provides reference systems and associated software to accessPHY registers by connecti ...

在现代通信系统中，电话语音的频带被限制在300 Hz～4 kHz的范围内，带来了语音可懂度和自然度的降低。为了在不增加额外成本的前提下提高语音的可懂度和自然度，进行了电话语音频带扩展的研究。提出了一种改进的基于码本映射的语音带宽扩展算法：在码本映射的过程中，使用加权系数来得到映射码本。客观测试结果表明，用此算 ...

The field of microelectromechanical systems (MEMS), particularly micromachinedmechanical transducers, has been expanding over recent years, and the productioncosts of these devices continue to fall. Using materials, fabrication processes, anddesign tools originally developed for the microelectronic ...

Abstract: The number of uses for microelectromechanical systems (MEMS) is growing—they allow us todo jobs once considered impossible. This tutorial explains the applications for MEMS and the increasingneed to provide precision control and drivers for these devices. Design and manufacturing c ...

Abstract: This reference design provides design ideas for a cost-effective, low-power liquid-level measurement dataacquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. Thisdocument discusses how to select the compensated silicon pressure sensor ...

特点 最高輸入頻率 10KHz 显示范围0-9999（一段设定）0至999999累积量 计数速度 50/10000脈波/秒可选择 输入脈波具有预设刻度功能 累积量同步（批量）或非同步（批次）计数可选择 数位化指拨设定操作简易 计数暂时停止功能 1组报警功能 2:主要規格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sin ...

特点 显示值范围-199999至999999位數 最高輸入頻率 5KHz 90度相位差加減算具有提高解析度4倍功能 输入脈波具有预设刻度功能 定位基准值可任意設定 比較磁滯值可任意設定 数位化指拨设定操作简易 3组继电器输出功能 2:主要規格 脈波輸入型式: Jump-pin selectable current sourcing(NPN) or current sinking (PNP) 脉波触发 ...