CY2544FIT

更新时间： 2024-10-01 03:59:51

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		时钟发生器
页数	文件大小	规格书
11页	317K
描述
Quad PLL Programmable Clock Generator with Spread Spectrum

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中文翻译

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替代型号

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CY2544FIT 数据手册

CY2544

CY2546

PRELIMINARY

Quad PLL Programmable Clock Generator with

Spread Spectrum

Features

Benefits

• Multiple high-performance PLLs allow synthesis of

unrelated frequencies

• Four fully integrated phase-locked loops (PLLs)

• Input Frequency range:

• Nonvolatile programming for customized PLL frequencies,

spreadspectrumcharacteristics, drivestrength,crystalload

capacitance, and output frequencies

— External crystal: 8 to 48 MHz

— External reference: 8 to 166 MHz clock

• Wide operating output frequency range

— 3 to 166 MHz

• TwoSpreadSpectrumcapablePLLswithLinearorLexmark

profile for maximum EMI reduction

• Spread Spectrum PLLs can be disabled or enabled

separately

• Programmable Spread Spectrum with Center and Down

Spread option and Lexmark modulation profile

• PLLs can be programmed for system frequency margin

tests

• Two VDD core voltage options:

— 2.5V, 3.0V, and 3.3V for CY2544

— 1.8V for CY2546

• Meets critical timing requirements in complex system

designs

• Suitable for PC, consumer, and networking applications

• Ability to synthesize standard frequencies with ease

• Selectable output voltages:

— 2.5V, 3.0V, and 3.3V for CY2544

— 1.8V for CY2546

• Application compatibility in standard and low-power

systems

• FrequencySelectfeaturewithoptiontoselecteightdifferent

frequencies

• Low jitter, high accuracy outputs

• Up to nine clock outputs

• Programmable output drive strength

• Glitch-free outputs while frequency switching

• 24-pin QFN package

• Commercial and Industrial temperature ranges

Block Diagram

EXCLKIN

4 of 6

Crossbar

Switch

CLK1

CLK2

CLK3

CLK4

CLK5

CLK6

CLK7

CLK8

CLK9

Bank

XIN

Output

OSC

PLL1

XOUT

Dividers

and

Bank

Drive

FS0

FS1

FS2

PLL2

Strength

MUX

and

Control

Logic

Control

Bank

PLL3

(SS)

PLL4

(SS)

PD#/OE

SSON

Cypress Semiconductor Corporation

Document #: 001-12563 Rev. *A

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised February 28, 2007

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中文翻译

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CY2544FIT 替代型号

型号	品牌	替代类型	描述	数据表
CY2544FI	CYPRESS	完全替代	Quad PLL Programmable Clock Generator with Spread Spectrum

与CY2544FIT相关器件

型号	品牌	获取价格	描述	数据表
CY2544I	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2544IT	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2544IXXX	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, 4 X 4 MM, LEAD FREE, MO-220, QFN-24
CY2544IXXXT	CYPRESS	获取价格	Quad PLL Programmable Clock Generator with Spread Spectrum
CY2544QC	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, QFN-24
CY2544QCT	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, QFN-24
CY2544QI	CYPRESS	获取价格	Clock Generator, 166MHz, CMOS, QFN-24
CY2545	CYPRESS	获取价格	Quad PLL Programmable Spread Spectrum Clock Generator with Serial I2C Interface
CY2545_0710	CYPRESS	获取价格	Quad PLL Programmable Spread Spectrum Clock Generator with Serial I2C Interface
CY2545_11	CYPRESS	获取价格	Quad PLL Programmable Spread Spectrum Clock Generator with Serial I2C Interface

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