W147中文资料赛普拉斯数据手册PDF规格书

Overview

The W147G is a highly integrated frequency timing generator, supplying all the required clock sources for an Intel® architecLButtonture platform using graphics integrated core logic.

特性 Features

• Maximized EMI suppression using Cypress’s Spread Spectrum Technology

• Low jitter and tightly controlled clock skew

• Highly integrated device providing clocks required for CPU, core logic, and SDRAM

• Three copies of CPU clock at 66/100 MHz

• Nine copies of 100-MHz SDRAM clocks

• Eight copies of PCI clock

• Two copies of synchronous APIC clock

• Two copies of 48-MHz clock (non-spread spectrum) optimized for USB reference input and video dot clock

• Two copies of 66-MHz fixed clock

• One copy of 14.31818-MHz reference clock

• Power-down control

• I2C interface for turning off unused clocks