3.4、驱动设计 为了提高DAC驱动能力(输出电流能力),将二阶RC低通滤波器的输出接到运放设计的电压跟随器上。 图10 所设计的二阶RC低通滤波器及驱动放大电路 4、PWM波(代码实现) 实现PWM-DAC模拟电压输出,并采用ADC(xpt2046)将PWM-DAC的输出电压显示在数码管上。 1/*2 程序功能:八位DA,定时器实现。并用AD采集...
DAC芯片广泛应用于多种领域: 音频处理:在音频设备中,DAC用于将数字音频信号转换为模拟信号,以供扬声器或耳机播放。音频DAC的质量直接影响到音频再现的质量。 视频显示:在显示技术中,DAC用于将数字图像信号转换为模拟RGB信号,用于CRT显示器。 通信系统:在无线通信中,DAC用于将数字基带信号转换为模拟信号,以便进一步调制并...
数/模转换器(Digital-to-Analog Converter, DAC, 也简写成D/A或 D-to-A)是将数字信号转换为模拟信号的集成电路。DAC 的性能指标主要有转换速度和转换精度。从转换原理或转换方法上来讲,按有无过采样 (Oversampling)的运算过程,DAC 可分为奈奎斯特速率(Nyquist-Rate) DAC 和过采样 DAC。奈奎斯特速率 DAC又可分...
digital-to-analog conversion (DAC), Process by which digital signals (which have a binary state) are converted to analog signals (which theoretically have an infinite number of states). For example, a modem converts computer digital data to analog audio-frequency signals that can be transmitted ...
这些装置被称作“数位至类比转换器(digital-to-analog converters, DAC)”,与ADC的运作相似。它们依照输入的数位讯号,输…hi.baidu.com|基于12个网页 2. 数位至模拟转换器 这些装置被称作“数位至模拟转换器(digital-to-analog converters, DAC)”,与ADC的运作相似。它们依照输入的数位讯号,输…zh.wikipedia.org|...
Current 电流 DAC Digital to Analog Converter 数模转换器 Db 对数比值 ... www.docin.com|基于12个网页 2. 数位讯号转成类比 而电脑播出音效就是把数位讯号转成类比(DAC digital to analog converter)至於优缺点就看解析度的多寡ex:类比电压0v~1v 要转 …www.pcdvd.com.tw|基于1 个网页...
Under these conditions, the equivalent diagram of the DAC can be reduced to the presentation in Figure 2.54. Sign in to download full-size image Figure 2.54. State of the digital-to-analog conversion circuit when only switch K7 is positioned on Eref Point M’ is a virtual ground. The ...
Certain aspects of the present disclosure are directed to a digital-to-analog converter (DAC) system. The DAC system generally includes a first current-steering DAC having a positive output, a negative output, and a bypass output; a common-mode (CM) path coupled between the positive and ...
Microchip offers low power Digital to Analog converter devices in 8- to 12-bit resolution and 1 to 4 channels, with unique integrated non-volatile memory DACs.
DAC121S101-SEP Radiation-tolerant, single-channel, low-power (0.57mW) 12-bit 5.5V digital-to-analog converter DDS39RF10 DDS39RF10 16-bit, 2-channel, 20.48GSPS, 12GHz RF direct digital synthesizer (DDS) Approx. price (USD)1ku |194.36 ...