PI6C49016 datasheet(1/16 Pages) PERICOM

Numer części	PI6C49016

Szczegółowy opis	Low Power Networking Clock Generator

PDF	16 Pages

Scroll/Zoom	100%

Producent	PERICOM [Pericom Semiconductor Corporation]

Strona internetowa	http://www.pericom.com

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PI6C49016

Rev. B

06/25/13

PI6C49016

Block Diagram

Description

The PI6C49016 is a clock generator device intended for PCI-

Express/networking applications. The device includes three 100

MHz differential outputs for PCI-Express using reduced power,

one single-ended 125 MHz output, one single-ended 66.66 MHz,

and one single-ended 80 MHz output with spread spectrum.

Using a serially programmable SMBus interface, the PI6C49016

incorporates spread spectrum modulation on the four 100 MHz

PCI-Express outputs with -0.5% down spread and the 80 MHz

output with selectable down spread.

Low Power Networking Clock Generator

Features

Î

25 MHz crystal or clock input

Î

Three differential 100 MHz PCI-Express clock outputs –

push-pull termination

Î

Spread spectrum capability on all 100 MHz PCI-e clock

outputs with -0.5% down spread

Î

One single-ended 66.66 MHz output

Î

One single-ended 125 MHz output for Gigabit Ethernet at

2.5V

Î

One single-ended 80 MHz output with selectable down

spread.

Î

40-pin QFN package

Î

Operating voltage 3.3 V ±5%

Î

Industrial temperature (-40 to +85°C)

Clock Buffer/

Crystal

Ocsillator

X1/CLK

X2

SCLK

SDATA

25 MHz

GND

External caps required

with crystal for accurate

tuning of the clock

100MHz PCI-Express 1

80MHz

66.66MHz

125MHz (2.5V)

100MHz PCI-Express 2

100MHz PCI-Express 0

PLL1 with

SS

PLL2

PLL3 with

SS

PLL4

PD_RESET

VDD

VDDO

13-0102

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