P1819G数据手册集成电路（IC）的时钟发生器PLL频率合成器规格书PDF

描述 Description

The P1819 is a Versatile Spread Spectrum Frequency Modulator designed specifically for input clock frequencies from 20 MHz to 40 MHz. The P1819 reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P1819 allows significant system cost savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations.

特性 Features

Internal loop filter
Minimizes external components and board space
Generates a low EMI Spread Spectrum clock and a non-spread reference clock of the input frequency
Selectable spread options: Down and Center

应用 Application

EMI management for memory PC peripheral devices
Consumer electronics, and embedded controller systems

简介

P1819G属于集成电路（IC）的时钟发生器PLL频率合成器。由制造生产的P1819G时钟发生器，PLL，频率合成器时钟发生器、PLL 和频率合成器集成电路 (IC) 可为逻辑器件提供参考信号的稳定定时脉冲，这些器件包括计算机、微控制器、数据通信系统和图形/视频发生器。这些集成电路可能包括缓冲器、驱动器、分频器、倍频器、多路复用器、合成器、扇出分配器和预分频器。