Datasheet > CY2548QI

CY2548QI

更新时间： 2024-11-19 11:14:03

品牌	Logo	应用领域
英飞凌 - INFINEON		时钟外围集成电路晶体
页数	文件大小	规格书
17页	487K
描述
9-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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CY2548QI 数据手册

CY2544/CY2546/CY2548

Quad-PLL Programmable Clock Generator

with Spread Spectrum

Quad-PLL Programmable Clock Generator with Spread Spectrum

■ Glitch free outputs while frequency switching

■ 24-pin QFN package

Features

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

■ Commercial and Industrial temperature ranges

■ Input frequency range

■ One-time programmability

For programming support, contact Cypress technical support

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

❐ External crystal: 8 to 48 MHz for CY2544 and CY2546

❐ External reference: 8 to 166 MHz clock

■ Reference clock input voltage range

❐ 2.5 V, 3.0 V, and 3.3 V for CY2548

❐ 1.8 V for CY2544 and CY2546

Benefits

■ Multiple high-performance PLLs allow synthesis of unrelated

frequencies

■ Wide operating output frequency range

❐ 3 to 166 MHz

■ 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 CY2544 and CY2548

❐ 1.8 V for CY2546

■ Application specific programmable EMI reduction using spread

spectrum for clocks

■ Programmable PLLs for system frequency margin tests

■ Selectable output clock voltages:

❐ 1.8 V, 2.5 V, 3.0 V, and 3.3 V for CY2544 and CY2548

❐ 1.8 V for CY2546

■ Meets critical timing requirements in complex system designs

■ Suitability for PC, consumer, portable, and networking

applications

■ Frequency select feature with option to select eight different

frequencies over nine clock outputs

■ Capable of Zero PPM frequency synthesis error

■ Power down, output enable, and SS ON/OFF controls

■ Low jitter, high accuracy outputs

■ Uninterrupted system operation during clock frequency switch

■ Application compatibility in standard and low-power systems

■ Ability tosynthesizenonstandard frequencies with Fractional-N

capability

Functional Description

For a complete list of related documentation, click here.

■ Up to nine clock outputs with programmable drive strength

Logic Block Diagram

CLKIN

CLK1

Crossbar

XIN/

EXCLKIN

Bank

CLK2

Switch

OSC

Output

PLL1

PLL2

CLK3

CLK4

CLK5

CLK6

CLK7

CLK8

CLK9

XOUT

Dividers

and

Bank

MUX

and

Drive

FS 0

FS 1

FS 2

Strength

Control

Bank

Control

Logic

PLL3

(SS)

PLL4

(SS)

PD#/OE

SSON

Cypress Semiconductor Corporation

Document Number: 001-12563 Rev. *M

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised October 31, 2017

12 3 4 5 6 7...17

中文翻译

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与CY2548QI相关器件

型号	品牌	获取价格	描述	数据表
CY2548QIT	INFINEON	获取价格	9-Output Low-Voltage Programmable Spread Spectrum Clock Generator
CY25560	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560_12	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SC	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SCT	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SI	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SIT	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SXC	CYPRESS	获取价格	Spread Spectrum Clock Generator
CY25560SXC	INFINEON	获取价格	1-Output Programmable Spread Spectrum Clock Generator
CY25560SXCT	CYPRESS	获取价格	Spread Spectrum Clock Generator

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