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Low-frequency

  • AM26C31CLow Power, I CC = 100 ƒ ⊂ A Typ Operate From a Single 5-V Supply High Spee

    AM26C31CLow Power, I CC = 100 ƒ ⊂ A Typ Operate From a Single 5-V Supply High Speed, t PLH = t PHL = 7 ns Typ Low Pulse Distortion, t sk(p) = 0.5 ns Typ High Output Impedance in Power-Off Conditions Improved Replacement for AM26LS31

    标签: Operate Single Supply Power

    上传时间: 2014-01-20

    上传用户:gtzj

  • Supplemental information for a high-speed serial bus that integrates well with most IEEE standard 3

    Supplemental information for a high-speed serial bus that integrates well with most IEEE standard 32-bit and 64-bit parallel buses is specified. It is intended to extend the usefulness of a low-cost interconnect between external peripherals, IEEE Std 1394-1995. This standard follows the ISO/IEC 13213:1994 Command and Status Register (CSR) architecture.

    标签: Supplemental information high-speed integrates

    上传时间: 2014-03-07

    上传用户:jjj0202

  • The UMTS Physical Layer model consists of an end-to-end (transmitter-to-receiver) simulation of the

    The UMTS Physical Layer model consists of an end-to-end (transmitter-to-receiver) simulation of the Frequency Division Duplex (FDD) Downlink physical layer for several Dedicated Channels (DCH) as specified by the 3GPP standard (Release 99).

    标签: transmitter-to-receiver end-to-end simulation Physical

    上传时间: 2014-01-11

    上传用户:it男一枚

  • The STi7200 is a new generation, high-definition set-top box/DVD decoder chip, and provides very hi

    The STi7200 is a new generation, high-definition set-top box/DVD decoder chip, and provides very high performance for low-cost HD systems. With enhanced performance over the STx7109, it includes both Windows Media Video 9 and H.264 video decoders for new, low bitrate applications. The STi7200 is able to decode two HD programs

    标签: high-definition generation provides decoder

    上传时间: 2013-11-29

    上传用户:xg262122

  • 频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中

    频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中,它可以作为干扰信号发生器;在测试设备中,可作为标准信号源,因此频率合成器被人们称为许多电子系统的“心脏”。直接数字频率合成(DDS——Digital Direct Frequency Synthesis)技术是一种全新的频率合成方法,是频率合成技术的一次革命。本文主要分析了DDS的基本原理及其输出频谱特点,并采用VHDL语言在FPGA上实现。对于DDS的输出频谱,一个较大的缺点是:输出杂散较大。针对这一缺点本文使用了两个方法加以解决。首先是压缩ROM查找表,

    标签: 频率合成技术 现代电子 导航 通信

    上传时间: 2017-09-28

    上传用户:大三三

  • OFDM仿真及实现

    OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术,实际上OFDM是多载波调制的一种。其主要思想是:将信道分成若干正交子信道,将高速数据信号转换成并行的低速子数据流,调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开,这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽,因此每个子信道上的可以看成平坦性衰落,从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分,信道均衡变得相对容易。

    标签: OFDM

    上传时间: 2015-02-17

    上传用户:hongyun288

  • ATMEGA16 控制PWM电机转动

    FILE NAME: dc_motor.c CHIP TYPE: ATMEGA16 CLOCK FREQUENCY: 8MHZ IDE: VSMStudio COMPILER: AVR-GCC

    标签: PWM

    上传时间: 2015-03-01

    上传用户:abilibili

  • fpga差分信号

    LVDS:Low Voltage Differential Signaling,低电压差分信号。 LVDS传输支持速率一般在155Mbps(大约为77MHZ)以上。

    标签: 差分信号

    上传时间: 2015-03-04

    上传用户:初夏浅浅时光

  • TJA1040

    The TJA1040 is an advanced high speed CAN transceiver for use in  automotive and general industrial applications. It supports the differential  bus signal representation described in the international standard for  in-vehicle high speed CAN applications (ISO11898). CAN (Controller Area  Network) is the standard protocol for serial in-vehicle bus communication,  particularly for Engine Management and Body Multiplexing. The TJA1040 provides a Standby mode, as known from its functional  predecessors PCA82C250 and PCA82C251, but with significantly  reduced power consumption. Besides the excellent low-power behavior  the TJA1040 offers several valuable system improvements. Highlights are  the absolute passive bus behavior if the device is unpowered as well as  the excellent EMC performance.

    标签: CAN

    上传时间: 2015-03-23

    上传用户:Yuan Lo

  • EPC Low level Reader Protocol

    EPC 낮은 수준의 리더 프로토콜

    标签: EPC RFID

    上传时间: 2015-06-04

    上传用户:gw0214