ASM3P2812A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 ASM3P28XX devices are versatile spread spectrum frequency modulators designed specifically for a wide range of input clock frequencies from 10 MHz to 40 MHz. The ASM3P28XX can generate an EMI reduced clock from crystal, ceramic resonator, or system clock. The ASM3P28XX-A and the ASM3P28XX-B offer various combinations of spread options and percentage deviations. These combinations include Down and Center Spread, and percentage deviation range from ±0.625% to -3.5%.The ASM3P28XX reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The ASM3P28XX 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 1x, 2x and 4x low EMI spread spectrum clock of the input frequency
Selectable spread options:Down Spread and Center Spread
CMOS/TTL compatible inputs and out
LVDS interfaces in mobile graphicchipsets

应用 Application

EMI management for memory
PCperipheral devices, consumer electronics, and embedded controller systems

简介

ASM3P2812A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ASM3P2812A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。