·Multicarrier Communications: Lie-Liang Yang Wiley | ISBN: 0470722002 | 2009-03-03 ,696 pages Benefiting from both time-domain and frequency-domain signal processing techniques, multi
標簽: nbsp Communications Multicarrier Wiley
上傳時間: 2013-04-24
上傳用戶:prczsf
·Stanford&IBM牛人經典之作 - Digital Control of Dynamic SystemsEditorial ReviewsProduct DescriptionThis well-respected, market-leading text discusses the use of digital computers in the real-time co
標簽: nbsp Hardcover Digital Control
上傳時間: 2013-07-31
上傳用戶:cuiyashuo
· 摘要: 傳統的DSP軟件開發都是先設計DSP上的算法并仿真然后將其寫成特定DSP的代碼(c或是匯編)在目標板上實現.介紹了一種新的高效、集成的DSP軟件設計方法.利用MATLAB7.0新提供的Embeded Target for TI C2000 DSP、simulink、Real-Time Workshop和TI的CCS IDE相結合,在MATLAB環境下生成DSP的C代
上傳時間: 2013-07-26
上傳用戶:hebmuljb
15.2 已經加入了有關貫孔及銲點的Z軸延遲計算功能. 先開啟 Setup - Constraints - Electrical constraint sets 下的 DRC 選項. 點選 Electrical Constraints dialog box 下 Options 頁面 勾選 Z-Axis delay欄.
上傳時間: 2013-10-08
上傳用戶:王慶才
沒事多學習一下英語
上傳時間: 2013-10-29
上傳用戶:ukuk
Industrial systems demand semiconductors that are precise, flexibleand reliable. Linear Technology offers a broad line of high performanceanalog ICs that simplify system design with rugged devices featuringparameters fully guaranteed over the -40°C to 85°C temperature range.We back this up with knowledgeable applications support, long productlife cycles and superior on-time delivery.
上傳時間: 2013-11-02
上傳用戶:xiaodu1124
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
電路連接 由于數碼管品種多樣,還有共陰共陽的,下面我們使用一個數碼管段碼生成器(在文章結尾) 去解決不同數碼管的問題: 本例作者利用手頭現有的一位不知品牌的共陽數碼管:型號D5611 A/B,在Eagle 找了一個 類似的型號SA56-11,引腳功能一樣可以直接代換。所以下面電路圖使用SA56-11 做引腳說明。 注意: 1. 將數碼管的a~g 段,分別接到Arduino 的D0~D6 上面。如果你手上的數碼管未知的話,可以通過通電測量它哪個引腳對應哪個字段,然后找出a~g 即可。 2. 分清共陰還是共陽。共陰的話,接220Ω電阻到電源負極;共陽的話,接220Ω電阻到電源+5v。 3. 220Ω電阻視數碼管實際工作亮度與手頭現有原件而定,不一定需要準確。 4. 按下按鈕即停。 源代碼 由于我是按照段碼生成器默認接法接的,所以不用修改段碼生成器了,直接在段碼生成器選擇共陽極,再按“自動”生成數組就搞定。 下面是源代碼,由于偷懶不用寫循環,使用了部分AVR 語句。 PORTD 這個是AVR 的端口輸出控制語句,8 位對應D7~D0,PORTD=00001001 就是D3 和D0 是高電平。 PORTD = a;就是找出相應的段碼輸出到D7~D0。 DDRD 這個是AVR 語句中控制引腳作為輸出/輸入的語句。DDRD = 0xFF;就是D0~D7 全部 作為輸出腳了。 ARDUINO CODECOPY /* Arduino 單數碼管骰子 Ansifa 2011-12-28 */ //定義段碼表,表中十個元素由LED 段碼生成器生成,選擇了共陽極。 inta[10] = {0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8, 0x80, 0x90}; voidsetup() { DDRD = 0xFF; //AVR 定義PortD 的低七位全部用作輸出使用。即0xFF=B11111111對 應D7~D0 pinMode(12, INPUT); //D12用來做骰子暫停的開關 } voidloop() { for(int i = 0; i < 10; i++) { //將段碼輸出PortD 的低7位,即Arduino 的引腳D0~D6,這樣需要取出PORTD 最高位,即 D7的狀態,與段碼相加,之后再輸出。 PORTD = a[i]; delay(50); //延時50ms while(digitalRead(12)) {} //如果D12引腳高電平,則在此死循環,暫停LED 跑 動 } }
上傳時間: 2013-10-15
上傳用戶:baitouyu
The MAX17600–MAX17605 devices are high-speedMOSFET drivers capable of sinking /sourcing 4A peakcurrents. The devices have various inverting and noninvertingpart options that provide greater flexibility incontrolling the MOSFET. The devices have internal logiccircuitry that prevents shoot-through during output-statchanges. The logic inputs are protected against voltagespikes up to +14V, regardless of VDD voltage. Propagationdelay time is minimized and matched between the dualchannels. The devices have very fast switching time,combined with short propagation delays (12ns typ),making them ideal for high-frequency circuits. Thedevices operate from a +4V to +14V single powersupply and typically consume 1mA of supply current.The MAX17600/MAX17601 have standard TTLinput logic levels, while the MAX17603 /MAX17604/MAX17605 have CMOS-like high-noise margin (HNM)input logic levels. The MAX17600/MAX17603 are dualinverting input drivers, the MAX17601/MAX17604 aredual noninverting input drivers, and the MAX17602 /MAX17605 devices have one noninverting and oneinverting input. These devices are provided with enablepins (ENA, ENB) for better control of driver operation.
上傳時間: 2013-12-20
上傳用戶:zhangxin
Abstract: For many first-time users, finding the right logger that meets their needs can be a challenging task. In simple
上傳時間: 2014-01-19
上傳用戶:縹緲