·詳細說明：AAC音頻解碼算法程序-AAC AUDIO frequency decoding algorithm procedure 文件列表: AAC_Codec .........\daac.01.11.12 .........\.............\all.h .........\.............\AUDIO_out.cp
上傳時間： 2013-05-26
上傳用戶：wangchong
·詳細說明：嵌入式linux系統的網絡編程(C++) 在ARM上實現視頻會議此程序獲得全國研究生電子大賽一等獎 壓縮包內為全部源碼，包括音頻視頻（H.264）socket部分 文件列表: 視頻會議源碼 ............\AUDIO.h ............\AUDIO_cap.cpp ............\AUDIO_
上傳時間： 2013-04-24
上傳用戶：caozhizhi
用fpga實現的DA轉換器，有說明和源碼，VDHL文件。\\r\\nA PLD Based Delta-Sigma DAC\\r\\nDelta-Sigma modulation is the simple, yet powerful,\\r\\ntechnique responsible for the extraordinary\\r\\nperformance and low cost of today s AUDIO CD\\r\\nplayers. The simplest Delta-Sigm
上傳時間： 2013-08-22
上傳用戶：dudu1210004
Abstract: This application note describes a new generation of digital-input Class D AUDIO amplifiers that achieve high PSRRperformance, comparable to traditional analog Class D amplifiers. More importantly, these digital-input Class D amplifiersprovide additional benefits of reduced power, complexity, noise, and system cost.
上傳時間： 2013-12-20
上傳用戶：JIUSHICHEN
Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequency or wideband (> 2xpassband frequency) jitter tolerance in these devices. The article also provides an application example ofa simple highly jittered cycle-skipped sampling clock and describes a method for generating a properbroadband jittered clock. The document then goes on to compare Maxim's AUDIO DAC jitter tolerance tocompetitor AUDIO DACs. Maxim's exceptionally high jitter tolerance allows very simple and low-cost sampleclock implementations.
上傳時間： 2013-10-25
上傳用戶：banyou
An essential component of a noise-free AUDIO device isa clean power supply, but few switching regulators canoperate at high efficiency while keeping the switchingfrequency out of the AUDIO band. The LTC®3620 fills thisvoid. It is a high efficiency 15mA buck regulator with aprogrammable minimum switching frequency, making itpossible to virtually eliminate audible switching noise. Theinternal synchronous switches and low quiescent currentof this buck regulator provide the ability to maintain highefficiency, while its small footprint makes it ideal for tiny,low power AUDIO applications.
上傳時間： 2013-10-21
上傳用戶：非衣2016
In an increasing trend, telecommunications, networking,AUDIO and instrumentation require low noise power supplies.In particular, there is interest in low noise, lowdropout linear regulators (LDO). These components powernoise-sensitive circuitry, circuitry that contains noisesensitiveelements or both. Additionally, to conserve power,particularly in battery driven apparatus such as cellulartelephones, the regulators must operate with low input-tooutputvoltages.1 Devices presently becoming availablemeet these requirements (see separate section, “A Familyof 20mVRMS Noise, Low Dropout Regulators”).
上傳時間： 2013-10-30
上傳用戶：yeling1919
應用 APPLICATIONS·電視機、錄像機、音頻設備、顯示器、復印機、打印裝置、游戲機及計算機等。·用于開關電源線性濾波器。·削除 TV、VTR、VCR及監聽器泄漏雜音。·用于OA 設備、通信設備和其它器件。·TV set, recorder, sound-frequency equipment, show-scope, photocopy-scope, typewrite equipment, recreation-scope, computer etc.·For line filters of switching power supplies.·Eliminates incoming/leaking noise of TVs, VTRs/VCRs and AUDIO equipment .·For OA equipment, communications equipment and other electronic devices.
上傳時間： 2013-10-23
上傳用戶：shizhanincc
為了使音頻信號分析儀小巧可靠，成本低廉，設計了以2片MSP430F1611單片機為核心的系統。該系統將音頻信號送入八階巴特沃茲低通濾波器，對信號進行限幅放大、衰減、電平位移、緩沖，并利用一單片機負責對前級處理后的模擬信號進行采樣，將采集得到的音頻信號進行4 096點基2的FFT計算，并對信號加窗函數提高分辨率，另一單片機負責對信號的分析及控制顯示設備。此設計精確的測量了音頻信號的功率譜、周期性、失真度指標，達到較高的頻率分辨率，并能將測量結果通過紅外遙控器顯示在液晶屏上。 Abstract: o make the AUDIO signal analyzer cheaper， smaller and more reliable， this system sends the AUDIO signal to the eight-order butterworth filter， and then amplifies， attenuates， buffers it in a limiting range， transfers the voltage level of the signal before utilizing two MSP430F1611 MCU to realize the AUDIO analysis. One is charged for sampling and dealing with the processed AUDIO signal collected by the 4096 point radix-2 FFT calculation and imposes the window function to improve the frequency resolution. The other one controls the display and realizes the spectrum， periodicity， power distortion analysis in high resolution which is displayed in the LCD screen through the infrared remote control.
上傳時間： 2013-12-11
上傳用戶：jasonheung
應用德國Micronas公司的CDC3207G微控制器開發了一款汽車儀表板系統。詳細地介紹了該系統的硬件原理，以及步進電機，音頻控制，LCD顯示，LED指示燈和報警燈等幾個模塊的實現方法。應用μC/OS-II實時操作系統開發軟件。著重介紹了啟動代碼的設計和任務的規劃。 Abstract: A dashboard system is developed by using CDC3207G microcontroller made by Micronas.The hardware of the sys-tem and the realization of the step motor module,AUDIO module,LCD display and LED indicator and alarm module are ex-plained in detail.The μC/OS-II real-time operating system is used for the software development and the starting code design and the task planning is explained specifically.
上傳時間： 2013-10-26
上傳用戶：x4587
