描述 Description

The 5X35023 is the latest VersaClock programmable clock

generator with an integrated crystal, and is designed for low

power, consumer, and high-performance PCI Express

applications.

The 5X35023 device is a 3 PLL architecture design, and each PLL

is individually programmable allowing for up to 6 unique

frequencies outputs. The device has built-in unique features such

as Proactive Power Saving (PPS), Performance-Power Balancing

(PPB), Overshoot Reduction Technology (ORT) and Extreme Low

Power DCO.

An internal OTP memory allows the user to store the configuration

in the device, after power up, user can change the register setting

through the I2

C interface when I2

C mode is selected. The device

has programmable VCO and PLL source selection to allow

power-performance optimization base on the application

requirements. The device supports 3 single-ended outputs and

two pairs of differential outputs that support LVCMOS, LVPECL,

LVDS and LP-HCSL.

Low Power 32.768kHz clock is supported with only less than 2μA

current consumption for system RTC reference clock.

特性 Features

? Configurable OE pin function as OE, PD#, PPS or DFC control

function

? Configurable PLL bandwidth; minimizes jitter peaking

? PPS: Proactive Power Saving features save power during the

end device power down mode

? PPB: Performance-Power Balancing feature allows minimum

power consumption base on required performance

? DFC: Dynamic Frequency Control feature allows up to 4

difference frequencies to switch dynamically

? Spread spectrum clock support to lower system EMI

? I

2

C interface

? Integrated crystal