Datasheet > ICS477R-05IT

ICS477R-05IT

更新时间： 2024-11-14 11:14:27

品牌	Logo	应用领域
矽成 - ICSI		晶体外围集成电路石英晶振压控振荡器电视光电二极管时钟
页数	文件大小	规格书
7页	148K
描述
Quad PLL with VCXO for HDTV

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ICS477R-05IT 数据手册

ICS477-05

Quad PLL with VCXO for HDTV

Description

Features

• Packaged in 28-pin SSOP (QSOP)

• Available in Pb-free packaging

The ICS477-05 generates five high-quality,

high-frequency clock outputs including two reference

outputs from a low frequency pullable crystal. It is

designed to replace crystals and crystal oscillators in

most electronic systems.

• Replaces a VCXO plus multiple crystals and

oscillators

• On-chip patented VCXO pull range 200 ppm

(minimum)

Using Phase-Locked-Loop (PLL) techniques, the

device runs from a fundamental mode, pullable crystal.

It can replace multiple crystals and oscillators, saving

board space and cost.

• Duty cycle of 45/55

• Operating voltage of 3.3V

• Advanced, low power, CMOS process

• Input crystal frequency of 27 MHz

• Five output clocks

• Industrial temperature range available

Block Diagram

VDD

VIN

54.054M

27 MHz

Pullable

Crystal

PLLA

Divide

Logic

and

74.175M

PLLB

PLLC

PLLD

Voltage

Controlled

Crystal

Output

Enable

Control

Oscillator

54M

External capacitors

may be required

27M

GND

PDTS

MDS 477-05 H

Revision 062404

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

12 3 4 5 6 7

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