PI6LC48P0401LE datasheet(1/10 Pages) PERICOM

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PI6LC48P0401

Rev.D

11/7/2014

PI6LC48P0401

Block Diagram

Description

The PI6LC48P0401 is a 4-output LVPECL synthesizer opti-

mized to generate Ethernet reference clock frequencies and is a

member of Pericom’s HiFlex family of high performance clock

solutions. Using a 25MHz crystal, the following frequencies can

be generated based on the settings of 2 frequency select pins

(N_SEL[1:0]): 156.25MHz, 125MHz, 62.5MHz.

The PI6LC48P0401 uses Pericom’s proprietary low phase noise

VCO technology and can achieve less than 1ps typical rms

phase jitter, so it is ideal for Ethernet interface in all kind of

systems.

Features

Î

Four differential LVPECL output pairs

Î

Selectable crystal oscillator interface or LVCMOS/LVTTL

single-ended clock input

Î

Supports the following output frequencies: 156.25MHz,

125MHz, 62.5MHz

Î

RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(1.875MHz – 20MHz): 0.23ps (typical)

Î

RMS phase jitter @ 156.25MHz, using a 25MHz crystal

(12kHz – 20MHz): 0.28ps (typical)

Î

Full 3.3V or 2.5V supply modes

Î

-40°C to 85°C ambient operating temperature

Î

Available in lead-free packages

Applications

Î

Networking systems

Phase

Detector

VCO

M = 25 (fixed)

N_SEL[1:0]

0 0 ÷4

0 1 ÷5

1 0 ÷10

1 1 not used

OSC

CLK0

CLK0#

CLK1

CLK1#

CLK2

CLK2#

CLK3

CLK3#

2

M_reset

IN_SEL

XTAL_OUT

XTAL_IN

Ref_IN

PLL_Bypass

N_SEL[1:0]

4-Output LVPECL Networking Clock Generator

14-0203

Số phần tương tự - PI6LC48P0401LE

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