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可编程逻辑 电源完整性分析应对高端PCB系统设计挑战
印刷电路板（PCB）设计解决方案市场和技术领军企业Mentor Graphics（Mentor Graphics）宣布推出HyperLynx® PI（电源完整性）产品，满足业内高端设计者对于高性能电子产品的需求。HyperLynx PI产品不仅提供简单易学、操作便捷，又精确的分析，让团队成员能够设计可行的电源供应系统；同时缩短设计周期，减少原型生成、重 ...
可编程逻辑 数字与模拟电路设计技巧
数字与模拟电路设计技巧IC与LSI的功能大幅提升使得高压电路与电力电路除外，几乎所有的电路都是由半导体组件所构成，虽然半导体组件高速、高频化时会有EMI的困扰，不过为了充分发挥半导体组件应有的性能，电路板设计与封装技术仍具有决定性的影响。 模拟与数字技术的融合由于IC与LSI半导体本身的高速化，同时为了使机器达到 ...
可编程逻辑 开关电源EMI设计(英文版)
Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of
Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This wor ...
可编程逻辑 PCB电源设计经典资料
|Introduction􀂄􀂄 Basic Concept􀂄􀂄 Tips to layout Power circuit􀂄􀂄 Type of Power circuit
Basic Concept􀂄􀂄 Maximum Current calculation􀂄􀂄 Resistance of Copper􀂄􀂄 ideal power supply & noise􀂄&# ...
测试测量 LT5528 WCDMA ACPR和AltCPR测量
 
ACPR (adjacent channel power ratio), AltCPR (alternatechannel power ratio), and noise are important performancemetrics for digital communication systems thatuse, for example, WCDMA (wideband code division multipleaccess) modulation. ACPR and AltCPR are bothmeasures of spectral regrowth. T ...
测试测量 低噪声电压基准的噪声测量
 
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increa ...
接口技术 谈集成电路的通用接口
Abstract: How can an interface change a happy face to a sad face? Engineers have happy faces when an interface works properly.Sad faces indicate failure somewhere. Because interfaces between microprocessors and ICs are simple—even easy—they are oftenignored until interface failure caus ...
通讯/手机编程 This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is wr
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise.
The packet include:
1) Packet Builder (Viterbi Encoding, Interleaver, PN generation)
2) Modulator (RRC filter)
3) Demodulator (Matched Filter, RAKE receiver)
...
DSP编程 Random Number Generators（随机数生成）包括gaussian random number generator、uniform random number generator、lo
Random Number Generators（随机数生成）包括gaussian random number generator、uniform random number generator、low-frequency hold generator、1/f noise generator等5种随机信号生成的c源代码
DSP编程 Routine mar1psd: To compute the power spectum by AR-model parameters. Input parameters: ip : AR
Routine mar1psd: To compute the power spectum by AR-model parameters.
Input parameters:
ip : AR model order (integer)
ep : White noise variance of model input (real)
ts : Sample interval in seconds (real)
a : Complex array of AR parameters a(0) to a(ip)
Output parameters:
psdr : Real array of ...