Over the past ten years there has been a revolution in the devel- opment and acceptance of mobile products. In that period, cel- lular telephony and consumer electronics have moved from the realm of science fiction to everyday reality. Much of that revolu- tion is unremarkable – we use wireless, in its broadest sense, for TV remote controls, car keyfobs, travel tickets and credit card transactions every day. At the same time, we have increased the number of mobile devices that we carry around with us. However, in many cases the design and function of these and other static products are still constrained by the wired connections that they use to transfer and share data.
標簽： Short-Range Essentials Wireless of
上傳時間： 2020-05-27
上傳用戶：shancjb
Over the past ten years there has been a revolution in the devel- opment and acceptance of mobile products. In that period, cel- lular telephony and consumer electronics have moved from the realm of science fiction to everyday reality. Much of that revolu- tion is unremarkable – we use wireless, in its broadest sense, for TV remote controls, car keyfobs, travel tickets and credit card transactions every day.
標簽： Short-Range Wireless
上傳時間： 2020-06-01
上傳用戶：shancjb
Fourth Generation (4G) wireless communication systems aim to allow peak data rates in the range of 1 Gbps for nomadic access and 100 Mbps for vehicular mobil- ity. 4G aims to support current and emergent multimedia services, such as mobile TV, social networks and gaming, high-definition television and video telecon- ference, multimedia messaging service, using the All-over IP concept and with improved quality of service.
標簽： Transmission Techniques Systems for 4G
上傳時間： 2020-06-01
上傳用戶：shancjb
You probably have heard all about what you can do with the Raspberry Pi. This credit- card sized computer can be plugged into your TV or any HDMI monitor to replace a typical computer. This little device is used in many computer projects, DIY electronics projects and even as a learning tool for kids who want to learn the basics of computer programming.
標簽： Automation Projects Home
上傳時間： 2020-06-06
上傳用戶：shancjb
An Arduino core for the ATmega328, ATmega168, ATmega88, ATmega48 and ATmega8, all running a [custom version of Optiboot for increased functionality](#write-to-own-flash). This core requires at least Arduino IDE v1.6.2, where v1.8.5+ is recommended. <br/> **This core gives you two extra IO pins if you're using the internal oscillator!** PB6 and PB7 is mapped to [Arduino pin 20 and 21](#pinout).<br/> If you're into "generic" AVR programming, I'm happy to tell you that all relevant keywords are being highlighted by the IDE through a separate keywords file. Make sure to test the [example files](https://github.com/MCUdude/MiniCore/tree/master/avr/libraries/AVR_examples/examples) (File > Examples > AVR C code examples). Try writing a register name, <i>DDRB</i> for instance, and see for yourself!
標簽： MiniCore
上傳時間： 2021-02-22
上傳用戶：
感謝您使用 Altera DE教學開發板。這塊板子的著眼于為在數字邏輯，計算機組織和FPGA方面的學習提供一個理想的工具。它在硬件和CAD工具上應用先進的技術為學生和專業人員展示了一個寬廣的主題。該板具有多種特點，非常適合各大學課程在實驗室環境下的一系列設計項目和非常復雜尖端的數字系統的開發和應用。Altera公司為DE2板提供了套支持文件，例如學習指導，現成的教學實驗練習和豐富的插圖說明DE2的特點DE2板是以 Cyclonell2C35FPGA為特點的672針引腳的包裝。板上所有重要的部件都與板上的芯片相連，使用戶能夠控制板上各種的操作DE2板包括了很多開關（兼有撥動開關和按鍵），發光二極管和七段數碼管。在更多進一步的實驗中還用到了SRAM，SDRAM Fash以及16×駙字符液晶。需要進行處理器和O接口試驗時，可以簡單的用 Altera Niosll處理器和象RS-232和PS/2標準接口。進行涉及音頻和視頻的實驗時，也有標準MC、line-in video-in（TV Decoder）和VGA（10-bit dac），這些特點都能夠被用來制作CD質量的音頻應用程序和專業的視頻圖象。為了能夠設計更強大的項目，DE2還提供了USB20接口（包括主、從USB），10/100M自適應以太網，紅外（lRDA）接口，以及SD卡接口。最后，可以通過兩排擴展O口與其它用戶自定義的板子相連。
標簽： altera
上傳時間： 2022-04-01
上傳用戶：bluedrops
如果在調諧器或電視機附近使用本機或任何其他使用微處理器的電子設備，則可能會產生圖像的噪聲或干擾。如果發生這種情況，請采取以下步驟將本機安裝在盡可能遠離調諧器或T的地方。遠離調諧器或T，遠離本機的電源線和輸入/輸出連接電纜。尤其在使用室內天線或300歐姆饋線。我們建議使用室外天線和75 Q / ohm同軸電纜Noise or disturbance of the picture may be generated if this unit or any other electronic equipment using microprocessors is used near a tuner or TV If this happens, take the following stepsInstall this unit as far away as possible from the tuner or T Run the antenna wires from the tuner or T away from this unit ' s power supply cord and input/output connection cables. Noise or disturbance tends to occur particularly when using indoor antennas or300 ohm feeder wires. We recommend using outdoor antennas and 75 Q/ohm coaxial cables
標簽： 功放
上傳時間： 2022-04-22
上傳用戶：
NXP 推出 TEA2016 系列 PFC + LLC 架構 ,針對效率要求日益增加的 Adapter 提升輕載及空載的效率 , 以達到高效率的要求 . 恩智浦半導體提供TEA2016 ( PFC+ LLC )可數位控制電源 IC ( digital power ic ) . 使用 digital power ic 架構能將電路簡單化 ,元件最少 ,有效降低成本及效率最佳化 。
標簽： 電源
上傳時間： 2022-05-31
上傳用戶：
PCF8591 8位A/D和D/A轉換1、特性：單電源供電。工作電壓： 2.5 V ~ 6V。待機電流低。I2C 總線串行輸入/輸出。通過3 個硬件地址引腳編址。采樣速率取決于I2C 總線速度。4個模擬輸入可編程為單端或差分輸入。自動增量通道選擇。模擬電壓范圍： VSS~VDD。片上跟蹤與保持電路。8 位逐次逼近式A/D 轉換。帶一個模擬輸出的乘法DAC。2、應用：閉環控制系統。用于遠程數據采集的低功耗轉換器。電池供電設備。在汽車、音響和TV 應用方面的模擬數據采集。3、概述：PCF8591 是單片、單電源低功耗8 位CMOS 數據采集器件， 具有4 個模擬輸入、一個輸出和一個串行I2C 總線接口。3 個地址引腳A0、A1 和A2 用于編程硬件地址，允許將最多8 個器件連接至I2C總線而不需要額外硬件。器件的地址、控制和數據通過兩線雙向I2C 總線傳輸。器件功能包括多路復用模擬輸入、片上跟蹤和保持功能、8 位模數轉換和8 位數模擬轉換。最大轉換速率取決于I2C 總線的最高速率。I2C 總線系統中的每一片PCF8591 通過發送有效地址到該器件來激活。該地址包括固定部分和可編程部分。可編程部分必須根據地址引腳A0、A1 和A2 來設置。在I2C 總線協議中地址必須是起始條件后作為第一個字節發送。地址字節的最后一位是用于設置以后數據傳輸方向的讀/寫位。（見圖4、16、17）
上傳時間： 2022-06-17
上傳用戶：qdxqdxqdxqdx
RK3328手冊RK3328 is a high-performance Quad-core application processor designed for Smart STB(Set Top Box) including OTT/IPTV/DVB. It is a high-integration and cost efficient SOC for 4KHDR STB.Quad-core Cortex-A53 is integrated with separate Neon and FPU coprocessor, also withshared L2 Cache. The Quad-core GPU supports high-resolution display and game.Lots of high-performance interface to get very flexible solution, such as multi-channeldisplay including HDMI2.0a and TV Encoder (CVBS). TrustZone and crypto hardware areintegrated for security. 32bits DDR3/DDR3L/DDR4/LPDDR3 provides high memorybandwidth.
上傳時間： 2022-08-10
上傳用戶：
