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Abstract: High-speed and low-speed data converters serve critical functions in modern broadband mobile radios. This application note outlines how todetermine high-speed data converter performance requirements in baseband sampling radio architectures. Also, system partition strategies andadvantages are outlined when considering a high-speed analog front-end (AFE) solution.
標簽：
AFE
移動
無線終端
導航
上傳時間：
2013-11-02
上傳用戶：jjj0202
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The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ARMCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.The LPC1850/30/20/10 include up to 200 kB of on-chip SRAM data memory, a quad SPIFlash Interface (SPIFI), a State Configuration Timer (SCT) subsystem, two High-speedUSB controllers, Ethernet, LCD, an external memory controller, and multiple digital andanalog peripherals.
標簽：
Cortex-M
1850
LPC
內核微控制器
上傳時間：
2014-12-31
上傳用戶：zhuoying119
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The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals
標簽：
4300
LPC
ARM
雙核微控制器
上傳時間：
2013-10-28
上傳用戶：15501536189
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The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.
標簽：
315x
LPC
315
ARM
上傳時間：
2014-01-17
上傳用戶：Altman
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Arduino 是一塊基于開放原始代碼的Simple i/o 平臺，并且具有使用類似java,C 語言的開發環境。讓您可以快速 使用Arduino 語言與Flash 或Processing…等軟件，作出互動作品。Arduino 可以使用開發完成的電子元件例如Switch 或Sensors 或其他控制器、ＬＥＤ、步進電機或其他輸出裝置。Arduino 也可以獨立運作成為一個可以跟軟件溝通的平臺，例如說：flash processing Max/MSP VVVV 或其他互動軟件…
Arduino 開發ＩＤＥ界面基于開放原始碼原則，可以讓您免費下載使用開發出更多令人驚奇的互動作品。 什么是Roboduino?
DFRduino 與Arduino 完全兼容，只是在原來的基礎上作了些改進。Arduino 的IO 使用的孔座，做互動作品需要面包板和針線搭配才能進行，而DFRduino 的IO 使用針座，使用我們的杜邦線就可以直接把各種傳感器連接到DFRduino 上。
特色描述
1． 開放原始碼的電路圖設計，程式開發界面免費下載，也可依需求自己修改!!
2． DFRduino 可使用ISP 下載線，自我將新的IC 程序燒入「bootloader」；
3． 可依據官方電路圖，簡化DFRduino 模組，完成獨立云作的微處理控制器；
4． 可簡單地與傳感器、各式各樣的電子元件連接(如：紅外線,超聲波,熱敏電阻,光敏電阻,伺服電機等)；
5． 支援多樣的互動程式 如: Flash,Max/Msp,VVVV,PD,C,Processing 等；
6． 使用低價格的微處理控制器(ATMEGA168V-10PI)；
7． USB 接口，不需外接電源，另外有提供9VDC 輸入接口；
8． 應用方面，利用DFRduino，突破以往只能使用滑鼠，鍵盤，CCD 等輸入的裝置的互動內容，可以更簡單地達成單人或多人游戲互動。
性能描述
1． Digital I/O 數字輸入/輸出端共 0~13。
2． Analog I/O 模擬輸入/輸出端共 0~5。
3． 支持USB 接口協議及供電(不需外接電源)。
4． 支持ISP 下載功能。
5． 支持單片機TX/RX 端子。
6． 支持USB TX/RX 端子。
7． 支持AREF 端子。
8． 支持六組PWM 端子(Pin11,Pin10,Pin9，Pin6,Pin5,Pin3)。
9． 輸入電壓：接上USB 時無須外部供電或外部5V~9V DC 輸入。
10．輸出電壓：5V DC 輸出和3.3V DC 輸出 和外部電源輸入。
11．采用Atmel Atmega168V-10PI 單片機。
12．DFRduino 大小尺寸：寬70mm X 高54mm。
Arduino開發板圖片
標簽：
Arduino
控制器
圖文教程
上傳時間：
2013-10-30
上傳用戶：wangzhen1990
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Designing withProgrammable Logicin an Analog WorldProgrammable logic devices revolutionizeddigital design over 25 years ago,promising designers a blank chip todesign literally any function and programit in the field. PLDs can be low-logicdensity devices that use nonvolatilesea-of-gates cells called complexprogrammable logic devices (CPLDs)or they can be high-density devicesbased on SRAM look-up tables (LUTs)
標簽：
Solutions
Analog
Altera
FPGAs
上傳時間：
2013-10-27
上傳用戶：fredguo
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The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially installed in studios to carry analog video. Next, HD-SDI wasto support high-definition video. Finally, dual link HD-SDI and 3G-SDIdoubled the bandwidth of HD-SDI to support 1080p (50 Hz and 60 Hz) and other videoformats requiring more bandwidth than HD-SDI provides.
標簽：
FPGA
328
WP
語音
上傳時間：
2013-12-08
上傳用戶：liansi
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In this paper, we discuss efficient coding and design styles using verilog. This can beimmensely helpful for any digital designer initiating designs. Here, we address different problems rangingfrom RTL-Gate Level simulation mismatch to race conditions in writing behavioral models. All theseproblems are accompanied by an example to have a better idea, and these can be taken care off if thesecoding guidelines are followed. Discussion of all the techniques is beyond the scope of this paper, however,here we try to cover a few of them.
標簽：
Efficient
Verilog
Digital
Coding
上傳時間：
2013-11-23
上傳用戶：我干你啊
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This application note discusses a variety of approaches for interfacing analog signals to 5V powered systems. Synthesizing a "rail-to-rail" op amp and scaling techniques for A/D converters are covered. A voltage-to-frequency converter, applicable where high resolution is required, is also presented.
標簽：
微處理器
系統接口
上傳時間：
2013-10-12
上傳用戶：181992417
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Digital的Unix操作系統VAX 4.2源碼
標簽：
Digital
Unix
4.2
VAX
上傳時間：
2013-12-24
上傳用戶：我們的船長
