Datasheet > CY2548QC

CY2548QC

更新时间： 2024-11-19 05:24:39

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, QFN-24

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中文翻译

获取价格

数据手册

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CY2548QC 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CY2548QC相关器件

型号	品牌	获取价格	描述	数据表
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
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

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