Datasheet > ICS843S104I-133

ICS843S104I-133

更新时间： 2024-01-29 06:25:10

品牌	Logo	应用领域
艾迪悌 - IDT		时钟
页数	文件大小	规格书
24页	1324K
描述
Crystal-to-LVPECL 133MHz Clock Synthesizer

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中文翻译

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数据手册

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ICS843S104I-133 数据手册

Crystal-to-LVPECL 133MHz

Clock Synthesizer

ICS843S104I-133

DATA SHEET

General Description

Features

The ICS843S104I-133 is a PLL-based clock

• Four LVPECL output pairs

synthesizer specifically designed for low phase noise

applications. This device generates a 133.33MHz

differential LVPECL clock from an input reference of

25MHz. The input reference may be derived from an

• Crystal oscillator interface: 25MHz

HiPerClockS™

• Differential PCLK/nPCLK input pair

• PCLK/nPCLK supports the following input types: LVPECL, CML,

SSTL

external source or by the addition of a 25MHz crystal to the on-chip

crystal oscillator. An external reference is applied to the PCLK,

nPCLK pins.The device offers spread spectrum clock output for

reduced EMI applications. An I²C bus interface is used to enable or

disable spread spectrum operation as well as to select either a down

spread value of -0.35% or -0.5%.The ICS843S104I-133 is available

in a lead-free 32-Lead VFQFN package.

• Output frequency: 133.33MHz

• PCI Express (2.5 Gb/s) and Gen 2 (5 Gb/S) jitter compliant

• RMS phase jitter @ 133.33MHz (12kHz – 20MHz):

1.2ps (typical)

• I²C support with readback capabilities up to 400kHz

• Spread Spectrum for electromagnetic interference (EMI) reduction

• 3.3V operating supply mode

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

• Available lead-free (RoHS 6) package

Block Diagram

Pin Assignment

Pulldown

REF_SEL

Pulldown

PCLK

Pullup/Pulldown

nPCLK

32 31 30 29 28 27 26 25

VCC

REF_SEL

V^EE

VEE

Q[1:4]

PLL

25MHz

nQ3

nQ[1:4]

XTAL_IN

OSC

V^CC

VEE

PCLK

XTAL_OUT

nPCLK

Pullup

V^EE

nQ4

SDATA

SCLK

I²C

Logic

VCCA

Pullup

VEE

V^CC

10 11 12 13 14 15 16

ICS843S104I-133

32-Lead VFQFN

5.0mm x 5.0mm x 0.925mm

package body

K Package

Top View

ICS843S104BKI-133 REVISION A JUNE 9, 2009

12 3 4 5 6 7...24

中文翻译

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