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LIN BUS標(biāo)(biāo)準(zhǔn)

FPGA中雙向端口I/O的設(shè)計

:針對現(xiàn)場可編程門陣列(FPGA)芯片的特點,研究FPGA中雙向端口I/O的設(shè)計,同時給出仿真初始化雙向端口I/O的方法。采用這種雙向端口的設(shè)計方法,選用Xilinx的Spartan2E芯片設(shè)計一個多通道圖像信號處理系統(tǒng)。

標(biāo)簽： FPGA 雙向端口

上傳時間： 2013-08-17

上傳用戶：xiaoyunyun
數(shù)位與類比PC TV Dongle的設(shè)計

Dongle泛指任何能插到電腦上的小型硬體，PC TV dongle則是用來在PC上觀看電視節(jié)目所用的擴充裝置。一般來說，依照採用的電視訊號規(guī)格，PC TV dongle可區(qū)分成兩大類：若使用的訊源為數(shù)位訊號，則屬於數(shù)位PC TV dongle；若使用的是類比訊號，則屬於類比PC TV dongle。全球各地皆有不同的採納階段，且推行的廣播標(biāo)準(zhǔn)也不盡相同。

標(biāo)簽： Dongle TV 數(shù)位

上傳時間： 2013-12-12

上傳用戶：lifangyuan12
在單端應(yīng)用中采用差分I/O放大器

Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total output signal swing. Since many lowvoltageapplications are single-ended, the questions arise,“How can I use a differential I/O amplifi er in a single-endedapplication?” and “What are the implications of suchuse?” This Design Note addresses some of the practicalimplications and demonstrates specifi c single-endedapplications using the 3GHz gain-bandwidth LTC6406differential I/O amplifi er.

標(biāo)簽： 單端應(yīng)用差分放大器

上傳時間： 2013-11-23

上傳用戶：rocketrevenge
pcb layout規(guī)則

LAYOUT REPORT .............. 1 目錄.................. 1 1. PCB LAYOUT 術(shù)語解釋(TERMS)......... 2 2. Test Point : ATE 測試點供工廠ICT 測試治具使用............ 2 3. 基準(zhǔn)點 (光學(xué)點) -for SMD:........... 4 4. 標(biāo)記 (LABEL ING)......... 5 5. VIA HOLE PAD................. 5 6. PCB Layer 排列方式...... 5 7.零件佈置注意事項 (PLACEMENT NOTES)............... 5 8. PCB LAYOUT 設(shè)計............ 6 9. Transmission Line ( 傳輸線 )..... 8 10.General Guidelines – 跨Plane.. 8 11. General Guidelines – 繞線....... 9 12. General Guidelines – Damping Resistor. 10 13. General Guidelines - RJ45 to Transformer................. 10 14. Clock Routing Guideline........... 12 15. OSC & CRYSTAL Guideline........... 12 16. CPU

標(biāo)簽： layout pcb

上傳時間： 2013-12-20

上傳用戶：康郎
M-BUS協(xié)議

M-BUS協(xié)議。

標(biāo)簽： M-BUS 協(xié)議

上傳時間： 2013-11-04

上傳用戶：diets
新唐CAN-BUS系列筆記（smartmcu）

新唐科技(原華邦電子邏輯事業(yè)群)，自2010年成功推出ARM® Cortex™-M0為內(nèi)核的32位單片機 - NuMicro™ 家族后，持續(xù)專注于新一代微控制器系列產(chǎn)品的開發(fā)。同時，32位單片機的發(fā)展前景備受各方矚目，在工業(yè)控制、消費電子、汽車電子、高速計算與通訊控制等應(yīng)用領(lǐng)域的推波助瀾下，32位單片機的成本和性價比展現(xiàn)令人期待的成長爆發(fā)力。2012年新唐再度大展身手，開發(fā)出多款新系列32位帶有 CAN BUS 設(shè)備的低功耗NUC130與NUC140系列單片機。

標(biāo)簽： smartmcu CAN-BUS 新唐

上傳時間： 2013-10-17

上傳用戶：
C8051F020

HIGH SPEED 8051 μC CORE - Pipe-lined Instruction Architecture; Executes 70% of Instructions in 1 or 2 System Clocks - Up to 25MIPS Throughput with 25MHz System Clock - 22 Vectored Interrupt Sources MEMORY - 4352 Bytes Internal Data RAM (256 + 4k) - 64k Bytes In-System Programmable FLASH Program Memory - External Parallel Data Memory Interface – up to 5Mbytes/sec DIGITAL PERIPHERALS - 64 Port I/O; All are 5V tolerant - Hardware SMBusTM (I2CTM Compatible), SPITM, and Two UART Serial Ports Available Concurrently - Programmable 16-bit Counter/Timer Array with 5 Capture/Compare Modules - 5 General Purpose 16-bit Counter/Timers - Dedicated Watch-Dog Timer; Bi-directional Reset CLOCK SOURCES - Internal Programmable Oscillator: 2-to-16MHz - External Oscillator: Crystal, RC, C, or Clock - Real-Time Clock Mode using Timer 3 or PCA SUPPLY VOLTAGE ........................ 2.7V to 3.6V - Typical Operating Current: 10mA @ 25MHz - Multiple Power Saving Sleep and Shutdown Modes 100-Pin TQFP (64-Pin Version Available) Temperature Range: –40°C to +85°C

標(biāo)簽： C8051F020

上傳時間： 2013-10-12

上傳用戶：lalalal
SN65LBC170,SN75LBC170,pdf(TRIP

The SN65LBC170 and SN75LBC170 aremonolithic integrated circuits designed forbidirectional data communication on multipointbus-transmission lines. Potential applicationsinclude serial or parallel data transmission, cabledperipheral buses with twin axial, ribbon, ortwisted-pair cabling. These devices are suitablefor FAST-20 SCSI and can transmit or receivedata pulses as short as 25 ns, with skew lessthan 3 ns.These devices combine three 3-state differentialline drivers and three differential input linereceivers, all of which operate from a single 5-Vpower supply.The driver differential outputs and the receiverdifferential inputs are connected internally to formthree differential input/output (I/O) bus ports thatare designed to offer minimum loading to the buswhenever the driver is disabled or VCC = 0. Theseports feature a wide common-mode voltage rangemaking the device suitable for party-lineapplications over long cable runs.

標(biāo)簽： 170 LBC SN TRIP

上傳時間： 2013-10-13

上傳用戶：ytulpx
瑞薩MCU在汽車儀表及CAN/LIN應(yīng)用中的解決方案

議程1.瑞薩汽車業(yè)務(wù)概述2.儀表盤MCU解決方案3.CAN/LIN（車身）MCU解決方案

標(biāo)簽： MCU CAN LIN 瑞薩

上傳時間： 2013-10-20

上傳用戶：王成林。
常用主板I/O芯片簡介

常用主板I/O芯片簡介

標(biāo)簽： 主板芯片

上傳時間： 2013-11-10

上傳用戶：yupw24