Datasheet > 8V89308I

8V89308I

更新时间： 2024-09-24 14:57:15

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
24页	809K
描述
Jitter Attenuator & FemtoClock? Multiplier

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8V89308I 数据手册

Jitter Attenuator & FemtoClock^®Multiplier

IDT8V89308I

DATA SHEET

General Description

Features

The IDT8V89308I is a PLL based synchronous multiplier specifically

designed for applications utilizing Broadcom PHYs and Switches.

This high performance device is optimized for Ethernet / SONET /

PDH frequency translation and clock jitter attenuation. The device

contains two internal frequency multiplication stages that are

cascaded in series. The first stage is a low bandwidth PLL that is

optimized to provide reference clock jitter attenuation. The second

stage is a FemtoClock^®frequency multiplier that provides the low

jitter, high frequency Ethernet output clock that easily meets Gigabit

and 10 Gigabit Ethernet jitter requirements. Pre-divider and output

divider multiplication ratios are selected using device selection

control pins. The multiplication ratios are optimized to support most

common clock rates used in Ethernet, SONET, PDH applications.

IDT8V89308I requires the use of an external, inexpensive

fundamental mode crystal and uses external passive loop filter

components which allows configuration of the PLL loop bandwidth

and damping characteristics. The device is packaged in a

space-saving 32-VFQFN package and supports industrial

temperature range.

• Two LVPECL output pairs

Each output supports independent frequency selection at 25MHz,

125MHz and 156.25MHz

• One differential input supports the following input types: LVPECL,

LVDS

• Accepts input frequencies 8kHz, 25MHz,125MHz and 155.52MHz

• First stage PLL bandwidth can be optimized for jitter attenuation

and reference tracking using external loop filter connection

• FemtoClock frequency multiplier provides low jitter, high

frequency output

• Absolute pull range: 50ppm

• FemtoClock VCO frequency: 625MHz

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

(12kHz – 5MHz): 0.238ps (typical), 0.30ps (maximum)

• RMS phase jitter @ 125MHz, using a 25MHz crystal

(12kHz – 20MHz): 0.223ps (typical), 0.30ps (maximum)

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

(12kHz – 20MHz): 0.223ps (typical), 0.30ps (maximum)

• 3.3V supply voltage

• -40°C to 85°C ambient operating temperature

• Available in lead-free (RoHS 6) package

Pin Assignment

32 31 30 29 28 27 26 25

LF1

VEE

LF0

nQB

ISET

V^CCO

nQA

V^EE

V^CC

RESERVED

VEE

V^EE

ODASEL 0

10 11 12 13 14 15 16

IDT8V89308I

32 Lead VFQFN

5mm x 5mm x 0.925mm package body

NL Package

Top View

IDT8V89308ANLGI REVISION A JUNE 18, 2012

12 3 4 5 6 7...24

中文翻译

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与8V89308I相关器件

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8V97051	RENESAS	获取价格	Low Power Wideband Fractional RF Synthesizer
8V97051_16	IDT	获取价格	Low Power Wideband Fractional RF Synthesizer / PLL
8V97051_17	IDT	获取价格	Low Power Wideband Fractional RF Synthesizer / PLL
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