External
共 259 篇文章
External 相关的电子技术资料,包括技术文档、应用笔记、电路设计、代码示例等,共 259 篇文章,持续更新中。
无线遥控芯片CMT2150A手册,可作门铃方面设计和制作等
<p>无线遥控门铃发射芯片可以用作门铃方面设计和制作等<br/>240 – 480 MHz OOK Stand-Alone Transmitter with Encoder<br/></p><p>Features</p><p> Embedded EEPROM</p><p> Very Easy Development with RFPDK</p><p> All Features P
Rockchip 电源IC RK816 技术手册
<p>The RK816 is a complex power management integrated circuit (PMIC) for multi-core </p><p>system applications powered by Li-ion polymer battery cell, or by a 5V input either form an </p><p>
MT7628 Datasheet
<p>Overview The MT7628 router-on-a-chip includes an 802.11n MAC and baseband,a 2.4 GHz radio and FEM,a 575/580<br/>MHz MIPS? 24K% CPU core,a 5-port 10/100 fast ethernet switch. The MT7628 includes eve
基于ICL8038等构成的函数发生器电路
<p>摘要:</p><p>本系统以ICL8038集成块为核心器件,制作一种函数信号发生器,制作成本较低。</p><p>适合学生学习电子技术测量使用。ICL8038是一种具有多种波形输出的精密振荡集成电路,只需要个别的外部元件就能产生从0.001Hz~30KlHz的低失真正弦波、三角波、矩形波等脉冲信号。输出波形的频率和占空比还可以由电流或电阻控制。另外由于该芯片具</p><p>有调制信号输入端,所
简易数字频率计
<p>对于文件名为xx.ms11的文件,需要首先安装multisim11仿真软件才能使用;</p><p><br/></p><p><br/></p><p>对于文件名为xx.ms11的8051单片机仿真电路文件(或者PIC弹片机仿真电路文件),不仅需要首先安装multisim11仿真软件,</p><p>还需要有相关的工程文件(multisim11中默认存放在C:\Documents and Setti
GL823K 原理图
<p>The GL823K integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. Its pin assignment design
高通蓝牙芯片QCC5144_硬件设计指导书
<p>高通(Qualcomm)蓝牙芯片QCC5144_硬件设计详细指导书(官方内部培训手册)</p><p><br/></p><p>其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。</p><p><br/></p><p>2 Power management </p><p>2.1 SMPS </p><p>2.1.1 Components sp
一种低成本高可靠的SFP+光收发模块电路研究与实现
<p>本文首次设计并验证了基于macom三合一芯片设计的光模块电路,该电路旨在提供一种满足SFF-8472中规定的数字诊断功能的低成本SFP+模块。电路采用激光器驱动、限幅放大器、控制器以及时钟恢复单元集成的单芯片,在保证高精度数字诊断功能基础上,实现了低成本高可靠的特点。该电路在光接收接口组件与激光器驱动和限幅放大器单元的限幅放大器部分之间接入滤波器来提高模块的灵敏度及信号质量。在控制器单元的数
电流检测电路中运算放大器与ADC的设计
<p>电学中的测量技术涉及范围非常广,电流测量在电学计量中占有非常重要的位置。如何精确地进行电流测量是精密测量的一大难题。传统的电流检测电路多采用运算放大芯片与片外电流检测电路相结合的方式,电路集成度很低,需要较多的接口和资源才能完成对电路的检测。本文把所有电路部分都集成在一块芯片上,包括检测电阻,运算放大器电路及模拟转数字转换电路,从而在电路内部可以进行电流检测,使电路更好的集成化。前置电路使用
电子书-RTL Design Style Guide for Verilog HDL540页
<p>电子书-RTL Design Style Guide for Verilog HDL540页</p><p>A FF having a fixed input value is generated from the description in the upper portion of
Example 2-21. In this case, ’0’ is output when the re
通过STM32CubeMX制作外部Flash的烧写驱动
<p>目前,越来越多的应用需要扩展外部的 Flash 来满足存储需求。那么,在调试及批量生产的过程中,需要对外扩的 Flash 进行 烧录操作。由于 STM32 ST-LINK Utility 以及 STM32CubeProgrammer 中,对 Flash 支持的型号有限,只能覆盖一部分 MCU 和 Flash 的型号,无法满足客户的需求,而且,提供的 external loader 的制作模板
PW2162_2.0.pdf规格书下载
<p>The PW2162 is a fully integrated, high– efficiency 2A synchronous rectified step-down converter.<br/>The PW2162 operates at high efficiency over a wide output current load range. This device offers
PW2163-2.0.pdf规格书下载
<p>The PW2163 is a high efficiency 500 kHz synchronous step-down DC-DC converter capable of<br/>delivering 3A current. The PW2163 operates over a wide input voltage range from 4.5V to 18V and<br/>inte
PW2163D.pdf规格书下载
<p>The PW2163D is a high frequency, synchronous, rectified, step-down, switch-mode converter with<br/>internal powerMOSFETs. It offers a very compact solution to provide a 3A continuous current over a
PW2228A-1.8.pdf规格书下载
<p>The PW2228A is a high efficiency single inductor Buck-Boost converter which can supply the<br/>load current up to 1.5A. It provides auto-transition between Buck and Boost Mode. The PW2228A<br/>oper
PW2312_2.0.pdf规格书下载
<p>The PW2312 is a high frequency, synchronous, rectified, step-down, switch-mode converter with<br/>internal power MOSFETs. It offers a very compact solution to achieve a 1.5A peak output current<br/
PW3130_2.0.pdf规格书下载
<p>The PW3130 series product is a high integration solution for lithium-lion/polymer battery<br/>protection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits and<br/>dela
PW4055_2.0.pdf规格书下载
<p>The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideally<br/>suit
PW4556_2.0.pdf规格书下载
<p>The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted<br/>at small capacity battery for portable applications. It is a complete constant-current/ constant<br
PW5300_2.0.pdf规格书下载
<p>The PW5300 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω power<br/>MOSFET make this regulator highly power efficient. The internal compensation network also<br/>mini