Datasheet > CY2548I

CY2548I

更新时间： 2024-11-19 10:31:39

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
19页	568K
描述
Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24

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中文翻译

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数据手册

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CY2548I 数据手册

CY2544

CY2546

CY2548

Quad PLL Programmable Clock Generator

with Spread Spectrum

Quad PLL Programmable Clock Generator with Spread Spectrum

■ Up to nine clock outputs with programmable drive strength

■ Glitch free outputs while frequency switching

Features

■ Four fully integrated phase locked loops (PLLs)

■ 24-pin QFN package

■ Input frequency range

■ Commercial and Industrial temperature ranges

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

❐ External reference: 8 to 166 MHz clock

Benefits

■ Reference clock input voltage range

❐ 2.5 V, 3.0 V, and 3.3 V for CY2548

❐ 1.8 V for CY2544 and CY2546

■ 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

■ Application specific programmable EMI reduction using spread

spectrum for clocks

■ VDD supply voltage options:

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

❐ 1.8 V for CY2546

■ Programmable PLLs for system frequency margin tests

■ Meets critical timing requirements in complex system designs

■ Selectable output clock voltages:

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

❐ 1.8 V for CY2546

■ Suitability for PC, consumer, portable, and networking

applications

■ Capable of Zero PPM frequency synthesis error

■ Frequency select feature with option to select eight different

frequencies over nine clock outputs

■ Uninterrupted system operation during clock frequency switch

■ Application compatibility in standard and low power systems

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

■ Low jitter, high accuracy outputs

Functional Description

■ Abilitytosynthesizenonstandard frequencies with Fractional-N

capability

For a complete list of related documentation, click here.

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. *J

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised April 6, 2016

12 3 4 5 6 7...19

中文翻译

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与CY2548I相关器件

型号	品牌	获取价格	描述	数据表
CY2548IT	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2548IXXX	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2548IXXXT	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2548QC	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, QFN-24
CY2548QI	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, QFN-24
CY2548QI	INFINEON	获取价格	9-Output Low-Voltage Programmable Spread Spectrum Clock Generator
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

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