8 / CLOCK A ND OSCILL ATOR SELEC TOR

EMBEDDED INTEL x86 CLOCK FEATURES

• Clocking support for Intel processors

• Multi-PLL platform for independent, asynchronous

signal generation

• Low power consumption push-pull differential buffers

• Available true differential current steering buffers

• Signal power management for notebook applications

• Dynamic enable/disable for PCIe hot plug applications

• Integrated voltage regulator and damping resistors

on differential clocks

• Integrates external graphics clocking requirements

• Available center spread LCD clock for optimized

display screen EMI reduction

• Integrated LAN clock for cost/space/component

savings

• Integrated IEEE1394 clock for cost/space

component savings

• 8-step programmable slew rate control for rise

time and fall time control

• Dynamic independent PLL overclocking for

enthusiast applications

• Underclocking capabilities for power management

support and debugging

• Best in the industry pread pectrum technology

for optimum system EMI reduction

Silicon Labs offers an family of Intel-compliant x86 clocks for embedded computing, communications and industrial

applications. These system main clock generators support a wide variety of chipsets and processors. They provide all the

necessary clock generation for the CPU, memory controller (chipset north bridge), I/O controller (chipset south bridge)

as well as the latest timing requirements for industry standards such as SATA, USB, LAN, PCI Express and legacy PCI.

Embedded Intel x86 Clocks

DDR II

DDR II

PCIe

PCIe

PCIe

PCIe

SIO

SIO

CPU

CPU

SL28EB717

Embedded

Intel x86

Clock

SL28EB717

Embedded

Intel x86

Clock

2 SATA II

2 SATA II

I/O

Hub

I/O

Hub

Ethernet

Ethernet

USB 2..0

USB 2..0

SD/MMC

SD/MMC

LVDS

LVDS

SDVO

SDVO

BCLK/HPLL, 100 MHz

DOT 96, 96 MHz

PCIe, 100 MHz

SATA75, 75 MHz

USB-48, 48 MHz

SYSCLK-25, 25 MHz

PCI, 33.3 MHz

2

PCI Devices

PCIe x 1

3 PCIe x 1

LPC

5

HCSL