Datasheet > ICS650-44

ICS650-44

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
矽成 - ICSI		时钟
页数	文件大小	规格书
10页	173K
描述
Spread Spectrum Clock Synthesizer

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ICS650-44 数据手册

P R E L I M I N A R Y I N F O R M AT I O N

ICS650-44

Spread Spectrum Clock Synthesizer

Description

Features

The ICS650-44 is a spread spectrum clock synthesizer

intended for video projector and digital TV applications.

It generates three copies of an EMI optimized 50 MHz

clock signal (EMI peak reduction of 7 to 14 dB on 3rd

through 19th harmonics) through the use of Spread

Spectrum techniques from a 25 MHz crystal or clock

input. The modulation rate is 50 kHz.

• Packaged in 16-pin TSSOP (173 mil)

• Supply voltages: VDD = 3.3 V, VDDO = 2.5 V

• Peak-to-peak jitter: 125 ps typ

• Output duty cycle 45/55% (worst case)

• 25 MHz crystal or reference clock input

• Zero (0) ppm frequency error on all output clocks

• Advanced, low-power CMOS process

• Industrial temperature range (-40 to +85°C)

• Available in Pb (lead) free package

Block Diagram

VDD

VDDO

25 MHz crystal

or clock input

50M

X1/CLKIN

Crystal

OSC

PLL with

Spread

Spectrum

External capacitors are

required with a crystal

input.

Control

FS3:0

Logic

50M

GND

PDTS

MDS 650-44 C

Revision 080305

Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com

12 3 4 5 6 7...10

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