Datasheet > CY2547QIT

CY2547QIT

更新时间： 2024-11-19 14:51:11

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
22页	503K
描述
8-Output Low-Voltage Programmable Spread Spectrum Clock Generator

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中文翻译

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数据手册

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CY2547QIT 数据手册

CY2545/CY2547

Quad-PLL Programmable Spread Spectrum

Clock Generator with Serial I²C Interface

Quad-PLL Programmable Spread Spectrum Clock Generator with Serial I²

C Interface

■ 24-pin QFN package

Features

■ Commercial and industrial temperature ranges

■ Four fully-integrated phase-locked loops (PLLs)

■ One-time programmability

For programming support, contact Cypress technical support

or send an e-mail to clocks@cypress.com

■ Input frequency range

❐ External crystal: 8 to 48 MHz

❐ External reference: 8 to 166 MHz clock

Benefits

■ Wide operating output frequency range

❐ 3 to 166 MHz

■ Serial programmable over two-wire I²C interface

■ Multiple high-performance PLLs allow synthesis of unrelated

frequencies

■ Nonvolatile programming for personalization of PLL

frequencies, spread spectrum characteristics, drive strength,

crystal load capacitance, and output frequencies

■ Programmable spread spectrum with center and down spread

option and Lexmark and Linear modulation profiles

■ V_DDsupply voltage options:

❐ 2.5 V, 3.0 V, and 3.3 V for CY2545

❐ 1.8 V for CY2547

■ Application-specificprogrammable EMIreductionusing spread

spectrum for clocks

■ Programmable PLLs for system frequency margin tests

■ Selectable output clock voltages independent of V_DDsupply:

❐ 1.8 V, 2.5 V, 3.0 V, and 3.3 V for CY2545

❐ 1.8 V for CY2547

■ Meets critical timing requirements in complex system designs

■ Suitability for PC, consumer, portable, and networking

■ Power-down, output enable, or frequency select features

■ Low jitter, high accuracy outputs

applications

■ Capable of zero PPM frequency synthesis error

■ Ability tosynthesizenonstandard frequencies with Fractional-N

capability

■ Uninterrupted system operation during clock frequency switch

■ Application compatibility in standard and low-power systems

■ Up to eight clock outputs with programmable drive strength

■ Glitch-free outputs while frequency switching

Functional Description

For a complete list of related documentation, click here.

Logic Block Diagram

CLKIN/RST

Crossbar

Switch

CLK1

XIN/

EXCLKIN

Bank

CLK2

Output

OSC

PLL1

PLL2

XOUT

Dividers

and

CLK3

CLK4

CLK5

CLK6

CLK7

CLK8

Bank

Drive

Strength

Control

MUX

and

Control

Logic

Bank

PLL3

(SS)

SCL

SDA

PLL4

(SS)

I2C

PD#/OE

SSON

Cypress Semiconductor Corporation

Document Number: 001-13196 Rev. *I

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised November 2, 2017

12 3 4 5 6 7...22

中文翻译

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与CY2547QIT相关器件

型号	品牌	获取价格	描述	数据表
CY2547QIXXX	CYPRESS	获取价格	Processor Specific Clock Generator, 166MHz, CMOS, QFN-24
CY25482	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum
CY25482FSXC	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, PDSO8, SOIC-8
CY25482FSXCT	CYPRESS	获取价格	暂无描述
CY25482FSXI	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, PDSO8, SOIC-8
CY25482SXC	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum
CY25482SXCT	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum
CY25482SXC-XXX	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum
CY25482SXC-XXXT	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum
CY25482SXI	CYPRESS	获取价格	Two PLL Programmable Clock Generator with Spread Spectrum

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