ICS345

更新时间： 2024-09-26 04:22:55

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
9页	209K
描述
TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER

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ICS345 数据手册

DATASHEET

TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER ICS345

Description

Features

The ICS345 field programmable clock synthesizer

generates up to nine high-quality, high-frequency clock

outputs including multiple reference clocks from a

low-frequency crystal or clock input. It is designed to

replace crystals and crystal oscillators in most electronic

systems.

• Packaged as 20-pin SSOP (QSOP)

• Spread spectrum capability

• Eight addressable registers

• Replaces multiple crystals and oscillators

• Output frequencies up to 200 MHz at 3.3 V

• Input crystal frequency of 5 to 27 MHz

• Input clock frequency of 2 to 50 MHz

• Up to nine reference outputs

Using IDT’s VersaClock software to configure PLLs and

outputs, the ICS345 contains a One-Time Programmable

(OTP) ROM to allow field programmability. Programming

features include eight selectable configuration registers, up

to two sets of four low-skew outputs, and optional Spread

Spectrum outputs.

• Up to two sets of four low-skew outputs

• Operating voltages of 3.3 V

• Advanced, low-power CMOS process

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

runs from a standard fundamental mode, inexpensive

crystal, or clock. It can replace multiple crystals and

oscillators, saving board space and cost.

• For one output clock, use the ICS341. For two output

clocks, see the ICS342. For three output clocks, see the

ICS343. For more than three outputs, see the ICS345 or

ICS348.

• Available in Pb (lead) free packaging

The ICS345 is also available in factory programmed custom

versions for high-volume applications.

Block Diagram

VDD

PLL1 with

Spread

CLK1

CLK2

CLK3

CLK4

CLK5

CLK6

CLK7

CLK8

CLK9

OTP

S2:S0

ROM

with

Spectrum

PLL

Divide

Logic

Values

PLL2

PLL3

and

Output

Enable

Control

Crystal or

clock input

X1/ICLK

Crystal

Oscillator

GND

External capacitors are

required with a crystal input.

PDTS

IDT™ / ICS™ TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER 1

ICS345

REV K 110207

12 3 4 5 6 7...9

中文翻译

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与ICS345相关器件

型号	品牌	获取价格	描述	数据表
ICS345RILF	IDT	获取价格	Clock Generator, CMOS, PDSO20
ICS345RIP	ICSI	获取价格	Triple PLL Field Programmable SS VersaClock Synthesizer
ICS345RIP	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RIPLF	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RIPLFT	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RIPT	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RI-XX	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RI-XXLF	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RI-XXLFT	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
ICS345RI-XXT	IDT	获取价格	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER