Once upon a time, cellular wireless networks provided two basic services: voice telephony and low-rate text messaging. Users in the network were separated by orthogonal multiple access schemes, and cells by generous frequency reuse patterns [1]. Since then, the proliferation of wireless services, fierce competition, andthe emergenceof new service classes such as wireless data and multimediahave resulted in an ever increasing pressure on network operators to use resources in a moreefficient manner.In the contextof wireless networks,two of the most common resources are power and spectrum—and, due to regulations, these resources are typically scarce. Hence, in contrast to wired networks, overprovisioning is not feasible in wireless networks.
標(biāo)簽： Maximization Nonconvex Wireless Utility Systems in
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
In this first part of the book the Vienna Link Level (LL) Simulators are described. The first chapter provides basics of LL simulations, introduces the most common variables and parameters as well as the transceiver structures that are applied in Long-Term Evolution (LTE) and Long-Term Evolution-Advanced (LTEA). We focus here mostly on the Downlink (DL) of LTE as most results reported in later chapters are related to DL transmissions.
標(biāo)簽： LTE-Advanced Simulators Vienna
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
Since electronic equipment was first developed, static electricity has been a source of problems for users and designers. In the last few years, however, electrostatic discharge (ESD) has become a source of major problems. This has occurred because newer electronic devices, such as integrated circuits, are much more susceptible to ESD problems than previous devices, such as vacuum tubes. Another trend compounding this ESD susceptibility problem is the spread of sophisticated equipment into home and office environments where ESD is quite common.
標(biāo)簽： Electronic Equipment ESD and
上傳時(shí)間： 2020-06-05
上傳用戶：shancjb
Nowadays sensors are part of everyday life in a wide variety of fields: scientific applications, medical instrumentation, industrial field, ...and, last but not least, popular mass production and low-cost goods, like smartphones and other mobile devices. Markets and business behind the field of sensors are quite impressive. A common trend for consumer applications is miniaturization which requires, on one side, a lot of research, development efforts, and resources but, on the other hand, allows costs and final application size reduction. In this scenario scientific community and industries are very active to drive innovation.
標(biāo)簽： Magnetometers Lorentz Force MEMS
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
We are in the era of ubiquitous computing in which the use and development of Radio Frequency Iden- tification (RFID) is becoming more widespread. RFID systems have three main components: readers, tags, and database. An RFID tag is composed of a small microchip, limited logical functionality, and an antenna. Most common tags are passive and harvest energy from a nearby RFID reader. This energy is used both to energize the chip and send the answer back to the reader request. The tag provides a unique identifier (or an anonymized version of that), which allows the unequivocal identification of the tag holder (i.e. person, animal, or items).
標(biāo)簽： Identification Wireless
上傳時(shí)間： 2020-06-08
上傳用戶：shancjb
This book will discuss the topic of Control Systems, which is an interdisciplinary engineering topic. Methods considered here will consist of both "Classical" control methods, and "Modern" control methods. Also, discretely sampled systems (digital/computer systems) will be considered in parallel with the more common analog methods. This book will not focus on any single engineering discipline (electrical, mechanical, chemical, etc.), although readers should have a solid foundation in the fundamentals of at least one discipline.
標(biāo)簽： wiki-Control_Systems
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
Artificial Intelligence (AI) is a big field, and this is a big book. We have tried to explore the full breadth of the field, which encompasses logic, probability, and continuous mathematics; perception, reasoning, learning, and action; and everything from microelectronic devices to robotic planetary explorers. The book is also big because we go into some depth. The subtitle of this book is “A Modern Approach.” The intended meaning of this rather empty phrase is that we have tried to synthesize what is now known into a common frame- work, rather than trying to explain each subfield of AI in its own historical context. We apologize to those whose subfields are, as a result, less recognizable.
標(biāo)簽： A-Modern-Approach Intelligence
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar Junction Transistor. Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant) Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)] Use Coupling Capacitors to separate the AC signals from the DC biasing voltage (which only pass AC signals and block any DC component). Use Bypass Capacitor to maintain the Q-point stability. To determine the value of each component, first set Q-point close to the center position of the load line. (RL is the resistance of the speaker.)
標(biāo)簽： 音頻放大器設(shè)計(jì) 電路圖 英文
上傳時(shí)間： 2020-11-27
上傳用戶：
產(chǎn)品型號(hào)：VKL060 產(chǎn)品品牌：VINKA/永嘉微電 封裝形式: SSOP24 聯(lián) 系 人：沈經(jīng)理 聯(lián) 系 QQ：288 521 8966 聯(lián)系手機(jī)：13554744703 提供專業(yè)工程服務(wù)，用芯服務(wù)客戶 M-02 概述 VKL060是15X4的字段式液晶顯示驅(qū)動(dòng)顯示驅(qū)動(dòng)芯片，工作電壓2.5-5.5V，I2C串行接口，內(nèi)置振蕩電路，低功耗設(shè)計(jì)，適用于有段式LCD面板的手表，醫(yī)療儀器等產(chǎn)品，工作電流小可以設(shè)置多種節(jié)點(diǎn)模式，可通過VLCD腳對(duì)地接電阻調(diào)整對(duì)比度，采用SSOP-24的封裝形式。 功能特點(diǎn) ● 液晶驅(qū)動(dòng)輸出： Common 輸出4線 Segment 輸出15 ● 內(nèi)置Display data RAM (DDRAM) 內(nèi)置RAM容量：32*4 =128 bit ● 液晶驅(qū)動(dòng)的電源電路 1/2 ，1/3 Bias ，1/4 Duty 內(nèi)置Buffer AMP ● I2C串行接口(SCL, SDA) ● 內(nèi)置振蕩電路 ● 不需要外圍部件 ● 低功耗設(shè)計(jì) ● 搭載等待模式 ● 內(nèi)置Power-on Reset電路 ● 搭載閃爍功能 ● 工作電源電壓： 2.5-5 .5V ● 封裝形式：SSOP24L(150mil) (8.65mm x 3.9mm PP=0.635mm) VINKA原廠LCD/LED液晶控制器及驅(qū)動(dòng)器系列 芯片簡(jiǎn)介如下： 高抗干擾LCD液晶控制器及驅(qū)動(dòng)系列 VK2C21A 2.4～5.5V 20seg*4com 16*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-28 VK2C21B 2.4～5.5V 16seg*4com 12*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-24 VK2C21C 2.4～5.5V 12seg*4com 8*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-20 VK2C21D 2.4～5.5V 8seg*4com 4*8 偏置電壓1/3 1/4 I2C通訊接口 NSOP-16 VK2C22A 2.4～5.5V 44seg*4com 偏置電壓1/21/3 I2C通訊接口 LQFP-52 VK2C22B 2.4～5.5V 40seg*4com 偏置電壓1/2 1/3 I2C通訊接口 LQFP-48 VK2C23A 2.4～5.5V 56seg*4com 52*8 偏置電壓1/3 1/4 I2C通訊接口 LQFP-64 VK2C23B 2.4～5.5V 36seg*8com 偏置電壓1/31/4 I2C通訊接口 LQFP-48 VK2C24 2.4～5.5V 72seg*4com 68*8 60*16 偏置電壓1/3 1/41/5 I2C通訊接口LQFP-80 超低功耗LCD液晶控制器及驅(qū)動(dòng)系列 VKL060 2.5～5.5V 15seg*4com 偏置電壓1/21/3 I2C通訊接口 SSOP-24 VKL128 2.5～5.5V 32seg*4com 偏置電壓1/21/3 I2C通訊接口 LQFP-44 VKL144A 2.5～5.5V 36seg*4com 偏置電壓1/21/3 I2C通訊接口 TSSOP-48 VKL144B 2.5～5.5V 36seg*4com 偏置電壓1/21/3 I2C通訊接口 QFN48L (6MM*6MM) 靜態(tài)顯示LCD液晶控制器及驅(qū)動(dòng)系列 VKS118 2.4～5.2V 118seg*2com 偏置電壓 -- 4線通訊接口 LQFP-128 VKS232 2.4～5.2V 116seg*2com 偏置電壓1/11/2 4線通訊接口 LQFP-128) 內(nèi)存映射的LED控制器及驅(qū)動(dòng)器 VK1628--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:70/52 共陰驅(qū)動(dòng):10段7位/13段4位 共陽驅(qū)動(dòng):7段10位 按鍵:10x2 封裝SOP28 VK1629--- 通訊接口:STb/CLK/DIN/DOUT 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):16段8位 共陽驅(qū)動(dòng):8段16位 按鍵:8x4 封裝QFP44 VK1629A--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):16段8位 共陽驅(qū)動(dòng):8段16位 按鍵:--- 封裝SOP32 VK1629B--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:112 共陰驅(qū)動(dòng):14段8位 共陽驅(qū)動(dòng):8段14位 按鍵:8x2 封裝SOP32 VK1629C--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:120 共陰驅(qū)動(dòng):15段8位 共陽驅(qū)動(dòng):8段15位 按鍵:8x1 封裝SOP32 VK1629D--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:96 共陰驅(qū)動(dòng):12段8位 共陽驅(qū)動(dòng):8段12位 按鍵:8x4 封裝SOP32 VK1640--- 通訊接口: CLK/DIN 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):8段16位 共陽驅(qū)動(dòng):16段8位 按鍵:--- 封裝SOP28 VK1650--- 通訊接口: SCL/SDA 電源電壓:5V(3.0～5.5V) 驅(qū)動(dòng)點(diǎn)陣:8x16 共陰驅(qū)動(dòng):8段4位 共陽驅(qū)動(dòng):4段8位 按鍵:7x4 封裝SOP16/DIP16 VK1668---通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:70/52 共陰驅(qū)動(dòng):10段7位/13段4位 共陽驅(qū)動(dòng):7段10位 按鍵:10x2 封裝SOP24 VK6932--- 通訊接口:STb/CLK/DIN 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):8段16位17.5/140mA 共陽驅(qū)動(dòng):16段8位 按鍵:--- 封裝SOP32 RAM映射LCD控制器和驅(qū)動(dòng)器系列 VK1024b 2.4V～5.2V 6seg*4com 6*3 6*2 偏置電壓1/21/3 S0P-16 VK1056b 2.4V～5.2V 14seg*4com 14*3 14*2 偏置電壓1/21/3 SOP-24/SSOP-24 VK1072B 2.4V～5.2V 18seg*4com 18*3 18*2 偏置電壓1/21/3 SOP-28 VK1072C 2.4V～5.2V 18seg*4com 18*3 18*2 偏置電壓1/21/3 SOP-28 VK1088b 2.4V～5.2V 22seg*4com 22*3 偏置電壓1/2 1/3 QFN-32L（4MM*4MM） VK0192 2.4V～5.2V 24seg*8com 偏置電壓1/4 LQFP-44 VK0256 2.4V～5.2V 32seg*8com 偏置電壓1/4 QFP-64 VK0256b 2.4V～5.2V 32seg*8com 偏置電壓1/4 LQFP-64 VK0256C 2.4V～5.2V 32seg*8com 偏置電壓1/4 LQFP-52 VK1621S-12.4V～5.2V 32*4 32*332*2 偏置電壓1/21/3 LQFP44/48/SSOP48/SKY28/DICE裸片 VK1622B 2.7V～5.5V 32seg*8com 偏置電壓1/4 LQFP-48 VK1622S 2.7V～5.5V 32seg*8com 偏置電壓1/4 LQFP44/48/52/64/QFP64/DICE裸片 VK1623S 2.4V～5.2V 48seg*8com 偏置電壓1/4 LQFP-100/QFP-100/DICE裸片 VK1625 2.4V～5.2V 64seg*8com 偏置電壓1/4 LQFP-100/QFP-100/DICE VK1626 2.4V～5.2V 48seg*16com 偏置電壓1/5 LQFP-100/QFP-100/DICE 以上介紹內(nèi)容為IC參數(shù)簡(jiǎn)介，難免有錯(cuò)漏，且相關(guān)IC型號(hào)眾多，未能一一收錄。歡迎聯(lián)系索取完整資料及樣品！ 為商之道，誠信是金;信譽(yù)至上，規(guī)范經(jīng)營;厚德載物，踐諾立行;童叟無欺，恪守信用;見利思義，義利雙行;以仁正我，公平競(jìng)爭(zhēng);和氣生財(cái)，持之以恒;人本法根，互利共贏;事業(yè)百年，誠信千秋;和諧中國，你我同行!
上傳時(shí)間： 2021-06-22
上傳用戶：abcyyim0921
產(chǎn)品型號(hào)：VKL060 產(chǎn)品品牌：VINKA/永嘉微電 封裝形式: SSOP24 聯(lián) 系 人：沈經(jīng)理 聯(lián) 系 QQ：288 521 8966 聯(lián)系手機(jī)：13554744703 提供專業(yè)工程服務(wù)，用芯服務(wù)客戶 M-02 概述 VKL060是15X4的字段式液晶顯示驅(qū)動(dòng)顯示驅(qū)動(dòng)芯片，工作電壓2.5-5.5V，I2C串行接口，內(nèi)置振蕩電路，低功耗設(shè)計(jì)，適用于有段式LCD面板的手表，醫(yī)療儀器等產(chǎn)品，工作電流小可以設(shè)置多種節(jié)點(diǎn)模式，可通過VLCD腳對(duì)地接電阻調(diào)整對(duì)比度，采用SSOP-24的封裝形式。 功能特點(diǎn) ● 液晶驅(qū)動(dòng)輸出： Common 輸出4線 Segment 輸出15 ● 內(nèi)置Display data RAM (DDRAM) 內(nèi)置RAM容量：32*4 =128 bit ● 液晶驅(qū)動(dòng)的電源電路 1/2 ，1/3 Bias ，1/4 Duty 內(nèi)置Buffer AMP ● I2C串行接口(SCL, SDA) ● 內(nèi)置振蕩電路 ● 不需要外圍部件 ● 低功耗設(shè)計(jì) ● 搭載等待模式 ● 內(nèi)置Power-on Reset電路 ● 搭載閃爍功能 ● 工作電源電壓： 2.5-5 .5V ● 封裝形式：SSOP24L(150mil) (8.65mm x 3.9mm PP=0.635mm) VINKA原廠LCD/LED液晶控制器及驅(qū)動(dòng)器系列 芯片簡(jiǎn)介如下： 高抗干擾LCD液晶控制器及驅(qū)動(dòng)系列 VK2C21A 2.4～5.5V 20seg*4com 16*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-28 VK2C21B 2.4～5.5V 16seg*4com 12*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-24 VK2C21C 2.4～5.5V 12seg*4com 8*8 偏置電壓1/3 1/4 I2C通訊接口 SOP-20 VK2C21D 2.4～5.5V 8seg*4com 4*8 偏置電壓1/3 1/4 I2C通訊接口 NSOP-16 VK2C22A 2.4～5.5V 44seg*4com 偏置電壓1/21/3 I2C通訊接口 LQFP-52 VK2C22B 2.4～5.5V 40seg*4com 偏置電壓1/2 1/3 I2C通訊接口 LQFP-48 VK2C23A 2.4～5.5V 56seg*4com 52*8 偏置電壓1/3 1/4 I2C通訊接口 LQFP-64 VK2C23B 2.4～5.5V 36seg*8com 偏置電壓1/31/4 I2C通訊接口 LQFP-48 VK2C24 2.4～5.5V 72seg*4com 68*8 60*16 偏置電壓1/3 1/41/5 I2C通訊接口LQFP-80 超低功耗LCD液晶控制器及驅(qū)動(dòng)系列 VKL060 2.5～5.5V 15seg*4com 偏置電壓1/21/3 I2C通訊接口 SSOP-24 VKL128 2.5～5.5V 32seg*4com 偏置電壓1/21/3 I2C通訊接口 LQFP-44 VKL144A 2.5～5.5V 36seg*4com 偏置電壓1/21/3 I2C通訊接口 TSSOP-48 VKL144B 2.5～5.5V 36seg*4com 偏置電壓1/21/3 I2C通訊接口 QFN48L (6MM*6MM) 靜態(tài)顯示LCD液晶控制器及驅(qū)動(dòng)系列 VKS118 2.4～5.2V 118seg*2com 偏置電壓 -- 4線通訊接口 LQFP-128 VKS232 2.4～5.2V 116seg*2com 偏置電壓1/11/2 4線通訊接口 LQFP-128) 內(nèi)存映射的LED控制器及驅(qū)動(dòng)器 VK1628--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:70/52 共陰驅(qū)動(dòng):10段7位/13段4位 共陽驅(qū)動(dòng):7段10位 按鍵:10x2 封裝SOP28 VK1629--- 通訊接口:STb/CLK/DIN/DOUT 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):16段8位 共陽驅(qū)動(dòng):8段16位 按鍵:8x4 封裝QFP44 VK1629A--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):16段8位 共陽驅(qū)動(dòng):8段16位 按鍵:--- 封裝SOP32 VK1629B--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:112 共陰驅(qū)動(dòng):14段8位 共陽驅(qū)動(dòng):8段14位 按鍵:8x2 封裝SOP32 VK1629C--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:120 共陰驅(qū)動(dòng):15段8位 共陽驅(qū)動(dòng):8段15位 按鍵:8x1 封裝SOP32 VK1629D--- 通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:96 共陰驅(qū)動(dòng):12段8位 共陽驅(qū)動(dòng):8段12位 按鍵:8x4 封裝SOP32 VK1640--- 通訊接口: CLK/DIN 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):8段16位 共陽驅(qū)動(dòng):16段8位 按鍵:--- 封裝SOP28 VK1650--- 通訊接口: SCL/SDA 電源電壓:5V(3.0～5.5V) 驅(qū)動(dòng)點(diǎn)陣:8x16 共陰驅(qū)動(dòng):8段4位 共陽驅(qū)動(dòng):4段8位 按鍵:7x4 封裝SOP16/DIP16 VK1668---通訊接口:STb/CLK/DIO 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:70/52 共陰驅(qū)動(dòng):10段7位/13段4位 共陽驅(qū)動(dòng):7段10位 按鍵:10x2 封裝SOP24 VK6932--- 通訊接口:STb/CLK/DIN 電源電壓:5V(4.5～5.5V) 驅(qū)動(dòng)點(diǎn)陣:128 共陰驅(qū)動(dòng):8段16位17.5/140mA 共陽驅(qū)動(dòng):16段8位 按鍵:--- 封裝SOP32 RAM映射LCD控制器和驅(qū)動(dòng)器系列 VK1024b 2.4V～5.2V 6seg*4com 6*3 6*2 偏置電壓1/21/3 S0P-16 VK1056b 2.4V～5.2V 14seg*4com 14*3 14*2 偏置電壓1/21/3 SOP-24/SSOP-24 VK1072B 2.4V～5.2V 18seg*4com 18*3 18*2 偏置電壓1/21/3 SOP-28 VK1072C 2.4V～5.2V 18seg*4com 18*3 18*2 偏置電壓1/21/3 SOP-28 VK1088b 2.4V～5.2V 22seg*4com 22*3 偏置電壓1/2 1/3 QFN-32L（4MM*4MM） VK0192 2.4V～5.2V 24seg*8com 偏置電壓1/4 LQFP-44 VK0256 2.4V～5.2V 32seg*8com 偏置電壓1/4 QFP-64 VK0256b 2.4V～5.2V 32seg*8com 偏置電壓1/4 LQFP-64 VK0256C 2.4V～5.2V 32seg*8com 偏置電壓1/4 LQFP-52 VK1621S-12.4V～5.2V 32*4 32*332*2 偏置電壓1/21/3 LQFP44/48/SSOP48/SKY28/DICE裸片 VK1622B 2.7V～5.5V 32seg*8com 偏置電壓1/4 LQFP-48 VK1622S 2.7V～5.5V 32seg*8com 偏置電壓1/4 LQFP44/48/52/64/QFP64/DICE裸片 VK1623S 2.4V～5.2V 48seg*8com 偏置電壓1/4 LQFP-100/QFP-100/DICE裸片 VK1625 2.4V～5.2V 64seg*8com 偏置電壓1/4 LQFP-100/QFP-100/DICE VK1626 2.4V～5.2V 48seg*16com 偏置電壓1/5 LQFP-100/QFP-100/DICE 以上介紹內(nèi)容為IC參數(shù)簡(jiǎn)介，難免有錯(cuò)漏，且相關(guān)IC型號(hào)眾多，未能一一收錄。歡迎聯(lián)系索取完整資料及樣品！ 為商之道，誠信是金;信譽(yù)至上，規(guī)范經(jīng)營;厚德載物，踐諾立行;童叟無欺，恪守信用;見利思義，義利雙行;以仁正我，公平競(jìng)爭(zhēng);和氣生財(cái)，持之以恒;人本法根，互利共贏;事業(yè)百年，誠信千秋;和諧中國，你我同行!
標(biāo)簽： VKL060低功耗LCD液晶驅(qū)動(dòng)顯示芯片規(guī)格書 廣泛應(yīng)用費(fèi)率表/手持儀表/醫(yī)療儀器/工控設(shè)備等
上傳時(shí)間： 2021-06-22
上傳用戶：abcyyim0921
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