摘# 要：设计和制作了一款&& ?G（!& )*）液晶电视用4F9 背光源。模拟出4F9 的光学分布，以此为基础模拟出4F9 阵列的光强和颜色分布，得到适合的背光源厚度尺寸。在实际制作中，采用高效的驱动电路对4F9 阵列进行驱动，利用铝制散热片为背光源提供必须的散热。测试的结果，在整体背光源功耗为"$% M 时，中心亮度达到"D DE% ?6 N G!，均匀度为CO@ " P，色彩还原性达到=QR’ 标准"%! P，远远超过’’S4 背光源的A% P。
上传时间： 2021-12-09
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ALIENTEK STM32H750核心板底板 PDF原理图+AD集成封装库+主要器件技术手册：集成封装库：3.5TFTLCD封装库.IntLibATK-4.3' TFTLCD电容触摸屏模块_V1.2.IntLibATK-4342 4.3寸RGB屏模块封装库.IntLibATK-7016&7084 7寸RGB屏模块封装库.IntLibATK-NEO-6M-V2.3.IntLibATK-OV2640摄像头模块.IntLibATK-OV5640摄像头模块封装库.IntLibATK-SIM900A GSM模块封装库.IntLibMP3模块封装库.IntLibOLED模块封装库.IntLibSTM32H750核心板封装库STM32H750核心板封装库.IntLibSTM32F750&H750底板封装库STM32F750&H750底板封装库.IntLib主要器件手册列表：3710FXXX037XXFX01.pdf3710MXXX046XXFX01.pdfAMS1117.pdfAP3216C.pdfAT24C02中文数据手册.pdfAT8574_8574A_DS001V1.2.pdfCH340.pdfDHT11.pdfDS1820.pdfDS18B20.pdfES8388-DS.pdfES8388应用电路设计及PCB-LAYOUT注意事项.pdfET2046.pdfGT811.pdfGT9147数据手册.pdfGT9147编程指南.pdfH27U4G8F2E(替代MT29F4G08).pdfICM20608 ProductSpec-V1.pdfICM20608 Register Map.pdfLAN8720A.pdfMD8002.pdfMP2144.pdfMP2359 AN.pdfMP2359.pdfMP3302_r0.98.pdfMT29F4G08ABADAWP.pdfnRF24L01P(新版无线模块控制IC).PDFOTT2001A IIC协议指导.pdfOTT2001A_V02.pdfOV2640.pdfOV2640_DS(1.6).pdfOV5640_CSP3_DS_2.01_Ruisipusheng.pdfOV7670.pdfOV7670_英文.pdfPAM3101DAB28.pdfPCF8574.pdfPCF8574中文手册.pdfRT9193.pdfSMBJ3.3-440_series.pdfSMBJ5.0ca.pdfSN74LVC1G00.pdfSP3232.pdfSP3485.pdfSTM32H750XBH6.pdfTJA1050.pdfW25Q256.pdfW25Q64JV.pdfW9825G6KH.pdfXPT2046.pdf
上传时间： 2021-12-15
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CHAPTER 1: THE OP AMP CHAPTER 2: OTHER LINEAR CIRCUITS CHAPTER 3: SENSORS CHAPTER 4: RF/IF CIRCUITS CHAPTER 5: FUNDAMENTALS OF SAMPLED DATA SYSTEMS CHAPTER 6: CONVERTERS CHAPTER 7: DATA CONVERTER SUPPORT CIRCUITS CHAPTER 8: ANALOG FILTERS CHAPTER 9: POWER MANAGEMENT CHAPTER 10: PASSIVE COMPONENTS CHAPTER 11: OVERVOLTAGE EFFECTS ON ANALOG INTEGRATED CIRCUITS CHAPTER 12: PRINTED CIRCUIT BOARD (PCB) DESIGN ISSUES CHAPTER 13: DESIGN DEVELOPMENT TOOLS
上传时间： 2021-12-21
上传用户：wangshoupeng199
1. Scope ......................................................................................................................................................................... 12. DDR4 SDRAM Package Pinout and Addressing ....................................................................................................... 22.1 DDR4 SDRAM Row for X4,X8 and X16 ................................................................................................................22.2 DDR4 SDRAM Ball Pitch........................................................................................................................................22.3 DDR4 SDRAM Columns for X4,X8 and X16 ..........................................................................................................22.4 DDR4 SDRAM X4/8 Ballout using MO-207......................................................................................................... 22.5 DDR4 SDRAM X16 Ballout using MO-207.............................................................................................................32.6 Pinout Description ..................................................................................................................................................52.7 DDR4 SDRAM Addressing.....................................................................................................................................73. Functional Description ...............................................................................................................................................83.1 Simplified State Diagram ....................................................................................................................................83.2 Basic Functionality..................................................................................................................................................93.3 RESET and Initialization Procedure .....................................................................................................................103.3.1 Power-up Initialization Sequence .............................................................................................................103.3.2 Reset Initialization with Stable Power ......................................................................................................113.4 Register Definition ................................................................................................................................................123.4.1 Programming the mode registers .............................................................................................................123.5 Mode Register ......................................................................................................................................................134. DDR4 SDRAM Command Description and Operation ............................................................................................. 244.1 Command Truth Table ..........................................................................................................................................244.2 CKE Truth Table ...................................................................................................................................................254.3 Burst Length, Type and Order ..............................................................................................................................264.3.1 BL8 Burst order with CRC Enabled .........................................................................................................264.4 DLL-off Mode & DLL on/off Switching procedure ................................................................................................274.4.1 DLL on/off switching procedure ...............................................................................................................274.4.2 DLL “on” to DLL “off” Procedure ..............................................................................................................274.4.3 DLL “off” to DLL “on” Procedure ..............................................................................................................284.5 DLL-off Mode........................................................................................................................................................294.6 Input Clock Frequency Change ............................................................................................................................304.7 Write Leveling.......................................................................................................................................................314.7.1 DRAM setting for write leveling & DRAM termination function in that mode ............................................324.7.2 Procedure Description .............................................................................................................................334.7.3 Write Leveling Mode Exit .........................................................................................................................34
标签： DDR4
上传时间： 2022-01-09
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1， LDO稳压芯片电路图，40V宽输入，PW6206和PW6513(SOT23-3/SOT89-3)2， 1.2安培，30V宽输入，DC-DC降压芯片和PCB和BOM，PW23123， 3.0安培，30V宽输入，DC-DC降压芯片和PCB和BOM，PW23304， 5.0安培，30V宽输入，DC-DC降压芯片和PCB和BOM，PW2205 1，PW6206与PW6513系列是一款高精度，40V高输入电压，低静态电流，低压降线性稳压器具有高纹波抑制。在VOUT=5V&VIN=7V时，负载电流高达300mA，（输入与输出电压的压差越大，电流就越小）采用BCD工艺制造。PW6206提供过电流限制、软启动和过热保护，以确保设备在良好的条件下工作PW6206与PW6513系列输入电压可达40V，PW6513提供标准SOT89-3L和PW6206提供SOT23-3L封装。
标签： 稳压芯片
上传时间： 2022-01-12
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Extensively rewritten to present the C++11 language, standard library, and key design techniques as an integrated whole, Stroustrup thoroughly addresses changes that make C++11 feel like a whole new language, offering definitive guidance for leveraging its improvements in performance, reliability, and clarity. C++ programmers around the world recognize Bjarne Stoustrup as the go-to expert for the absolutely authoritative and exceptionally useful information they need to write outstanding C++ programs. Now, as C++11 compilers arrive and development organizations migrate to the new standard, they know exactly where to turn once more: Stoustrup's C++ Programming Language, Fourth Edition.Bjarne Stroustrup是C++的设计师和最早的实现者，也是《C++程序设计语言》、《带标注的C++参考手册》和《C++语言的设计与演化》的作者。他从丹麦Aarhus大学和英国牛津大学毕业，现在是AT&T大规模程序设计研究部的负责人，AT&T特别成员，AT&T贝尔实验室特别成员，以及ACM特别成员。Stroustrup的研究兴趣包括分布式系统、操作系统、模拟、设计和程序设计。他也是Addison·Wesley的C++In-Depth系列书籍的编辑。
标签： C++
上传时间： 2022-02-01
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The PW2606B is a front-end over voltage and over current protection device. It achieves wide inputvoltage range from 2.5VDC to 40VDC. The over voltage threshold can be programmed externally orset to internal default setting. The low resistance of integrated power path nFET switch ensures betterperformance for battery charging system applications. It can deliver up to 1A current to satisfy thebattery supply system. It integrates the over-temperature protection shutdown and auto-recoverycircuit with hysteresis to protect against over current events
标签： pw2606b
上传时间： 2022-02-11
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The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
标签： pw2601
上传时间： 2022-02-11
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该二维码&条码识别LIB功能:1,支持QR二维码识别.2,支持CODE128,CODE39,I25,EAN13等四种编码方式的条码识别.3,支持UTF8-OEM转换输出(需要客户自己提供转换码表). 本LIB移植步骤: 1,实现atk_qrdecode.c里面的所有函数. 2,堆栈(Stack_Size)设置为0X1000或以上. 本LIB使用步骤: 1,调用atk_qr_init函数,初始化识别程序,返回值为ATK_QR_OK,则初始化成功.2,调用atk_qr_decode函数,给定参数,对图像进行识别.3,如果需要不停的识别,则重复第2个步骤即可.4,调用atk_qr_destroy函数,结束识别,释放所有内存.结束识别.文件截图：
上传时间： 2022-02-24
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Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM) Display Resolution: 240*RGB (H) *320(V) Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits LCD Driver Output Circuits- Source Outputs: 240 RGB Channels- Gate Outputs: 320 Channels- Common Electrode Output Display Colors (Color Mode)- Full Color: 262K, RGB=(666) max., Idle Mode Off- Color Reduce: 8-color, RGB=(111), Idle Mode On Programmable Pixel Color Format (Color Depth) for Various Display Data input Format- 12-bit/pixel: RGB=(444)- 16-bit/pixel: RGB=(565)- 18-bit/pixel: RGB=(666) MCU Interface- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])- Serial Peripheral Interface(SPI Interface)- VSYNC Interface
上传时间： 2022-03-04
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