FS7140 datasheet(1/17 Pages) ONSEMI

Part #	FS7140

Description	Programmable Phase-Locked Loop Clock Generator

PDF	17 Pages

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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October, 2011 − Rev. 7

1

Publication Order Number:

FS7140/D

FS7140, FS7145

Programmable Phase-

Locked Loop Clock

Generator

Description

The FS7140 or FS7145 is a monolithic CMOS clock generator/

regenerator IC designed to minimize cost and component count in a

variety of electronic systems. Via the I2C−bus interface, the

FS7140/45 can be adapted to many clock generation requirements.

The length of the reference and feedback dividers, their fine

granularity and the flexibility of the post divider make the FS7140/45

the most flexible stand−alone PLL clock generator available.

Features

• Extremely Flexible and Low−jitter Phase Locked Loop (PLL)

Frequency Synthesis

• No External Loop Filter Components Needed

• 150 MHz CMOS or 340 MHz PECL Outputs

• Completely Configurable via I2C−bus

• Up to Four FS714x can be Used on a Single I2C−bus

• 3.3 V Operation

• Independent On−chip Crystal Oscillator and External Reference

Input

• Very Low “Cumulative” Jitter

• Pb−Free Packages are Available

Applications

• Precision Frequency Synthesis

• Low−frequency Clock Multiplication

• Video Line−locked Clock Generation

• Laser Beam Printers (FS7145)

http://onsemi.com

SOIC−16

01 SUFFIX

CASE 751BA

(Top View)

1

CLKN

CLKP

VDD

SCL

SDA

ADDR0

VSS

PIN CONNECTIONS

See detailed ordering and shipping information in the package

dimensions section on page 17 of this data sheet.

ORDERING INFORMATION

SSOP−16

02 SUFFIX

CASE 565AE

*

REF

VSS

N/C

IPRG

XIN

XOUT

ADDR1

VDD

* FS7140 pin 13 = N/C

* FS7145 pin 13 = SYNC

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