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IN-circuit-DEBUGGER

FPGA in the software radio

FPGA in the software radio

標簽： software radio FPGA the

上傳時間： 2013-09-06

上傳用戶：lina2343
ATmega128 circuit for ORCAD

ATmega128 circuit for ORCAD

標簽： circuit ATmega ORCAD 128

上傳時間： 2013-09-10

上傳用戶：xuanjie
Many CAD users dismiss schematic capture as a necessary evil in the process of creating

Many CAD users dismiss schematic capture as a necessary evil in the process of creating\r\nPCB layout but we have always disputed this point of view. With PCB layout now offering\r\nautomation of both component placement and track routing, getting the des

標簽： schematic necessary creating dismiss

上傳時間： 2013-09-25

上傳用戶：baiom
正確的混合信號設計印刷電路板(PCB)的接地

Abstract: This tutorial discusses proper printed-circuit board (PCB) grounding for mixed-signal designs. Formost applications a simple method without cuts in the ground plane allows for successful PCB layouts withthis kind of IC. We begin this document with the basics: where the current flows. Later, we describe how toplace components and route signal traces to minimize problems with crosstalk. Finally, we move on toconsider power supply-currents and end by discussing how to extend what we have learned to circuits withmultiple mixed-signal ICs.

標簽： PCB 正印刷電路板混合信號

上傳時間： 2013-11-04

上傳用戶：pol123
雙絞線和低通濾波器降低EMI_RFI

Abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer power within our world. Circuit simulators and filter design programs are available for little or no cost. We combine the twisted pair and lowpassfilters to produce spectacular rejection of radio frequency interference (RFI) and electromagnetic interference (EMI). We also illustrate use of a precision resistorarray to produce a customizable differential amplifier. The precision resistors set the gain and common mode rejection ratios, while we choose the frequencyresponse.

標簽： EMI_RFI 雙絞線低通濾波器

上傳時間： 2014-11-26

上傳用戶：Vici
利用數字電位器調整并校準升壓型DC-DC轉換器

The purpose of this application note is to show an example of how a digital potentiometer can be used in thefeedback loop of a step-up DC-DC converter to provide calibration and/or adjustment of the output voltage.The example circuit uses a MAX5025 step-up DC-DC converter (capable of generating up to 36V,120mWmax) in conjunction with a DS1845, 256 position, NV digital potentiometer. For this example, the desiredoutput voltage is 32V, which is generated from an input supply of 5V. The output voltage can be adjusted in35mV increments (near 32V) and span a range wide enough to account for resistance, potentiometer and DCDCconverter tolerances (27.6V to 36.7V).

標簽： DC-DC 數字電位器升壓型校準

上傳時間： 2014-12-23

上傳用戶：781354052
XAPP854-數字鎖相環(DPLL)參考設計

Many applications require a clock signal to be synchronous, phase-locked, or derived fromanother signal, such as a data signal or another clock. This type of clock circuit is important in

標簽： XAPP DPLL 854 數字鎖相環

上傳時間： 2014-12-23

上傳用戶：qq21508895
Stabilize Your Transimpedance Amplifier

Abstract: Transimpedance amplifiers (TIAs) are widely used to translate the current output of sensors like photodiode-to-voltagesignals, since several circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor fromoutput to the inverting input is the most straightforward implementation of such a TIA. However, even this simple TIA circuit requirescareful trade-offs among noise gain, offset voltage, bandwidth, and stability. Clearly stability in a TIA is essential for good, reliableperformance. This application note explains the empirical calculations for assessing stability and then shows how to fine-tune theselection of the feedback phase-compensation capacitor.

標簽： Transimpedance Stabilize Amplifier Your

上傳時間： 2013-11-13

上傳用戶：daoyue
數字集成電路設計Digital Integrated Circuit Design

This unique guide to designing digital VLSI circuits takes a top-down approach, reflecting the natureof the design process in industry. Starting with architecture design, the book explains the why andhow of digital design, using the physics that designers need to know, and no more.Covering system and component aspects, design verification, VHDL modelling, clocking, signalintegrity, layout, electricaloverstress, field-programmable logic, economic issues, and more, thescope of the book is singularly comprehensive.

標簽： Integrated Digital Circuit Design

上傳時間： 2013-11-04

上傳用戶：life840315
你的PLD是亞穩態嗎

This application note provides a detailed description of themetastable behavior in PLDs from both circuit and statisticalviewpoints. Additionally, the information on the metastablecharacteristics of Cypress PLDs presented here can help youachieve any desired degree of reliability.

標簽： PLD 亞穩態

上傳時間： 2013-10-23

上傳用戶：gtzj