ICS309 datasheet(1/10 Pages) IDT

номер детали	ICS309

подробное описание детали	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTH

PDF	10 Pages

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производитель	IDT [Integrated Device Technology]

домашняя страница	http://www.idt.com

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DATASHEET

SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTH

I CS3 0 9

IDT® SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTH

1

ICS309

REV L 091311

Description

The ICS309 is a versatile serially-programmable, triple

PLL with spread spectrum clock source. The ICS309

can generate any frequency from 250kHz to 200 MHz,

and up to 6 different output frequencies simultaneously.

The outputs can be reprogrammed on-the-fly, and will

lock to a new frequency in 10 ms or less.

To reduce system EMI emissions, spread spectrum is

available that supports modulation frequencies of

31 kHz and 120 kHz, as well as modulation amplitudes

of +/-0.25% to +/-2.0%. Both center and down-spread

options are available.

The device includes a PDTS pin which tri-states the

output clocks and powers down the entire chip.

The ICS309 default for non-programmed start-up are

buffered reference clock outputs on all clock output

pins.

IDT’s VersaClockTM programming software allows the

user to configure up to 9 outputs with target

frequencies, spread spectrum capabilities or buffered

reference clock outputs. The VersaClockTM software

automatically configures the PLLs for optimal overall

performance.

Features

• Packaged in 20-pin SSOP (QSOP) – Pb-free, RoHS

compliant

• Highly accurate frequency generation

• M/N Multiplier PLL: M = 1..2048, N = 1..1024

• Serially programmable: user determines the output

frequency via a 3-wire interface

• Spread Spectrum frequency modulation for reduced

system EMI

• Center or Down Spread up to 4% total

• Selectable 32 kHz and 120 kHz modulation

• Eliminates need for custom quartz oscillators

• Input crystal frequency of 5 - 27 MHz

• Input clock frequency of 3 - 50 MHz

• Output clock frequencies up to 200 MHz

• Operating voltage of 3.3 V

• Up to 9 reference clock outputs

• Power down tri-state mode

• Very low jitter

Block Diagram

C rystal

O scillator

PLL1 with

Spread

Spectrum

GND

2

3

VDD

PD T S

PLL2

PLL3

Divide

Logic

and

Output

Enable

Control

CLK1

CLK9

CLK8

CLK7

CLK6

CLK5

CLK4

CLK3

CLK2

X2

C rystal or

clock input

E xternal capacitors are

required w ith a crystal input.

X 1/IC LK

SCLK

DATA

STROBE

Аналогичный номер детали - ICS309

производитель	номер детали	датащи	подробное описание детали
Integrated Circuit Syst...	ICS309	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704
	ICS309R	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704
	ICS309RI	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704
	ICS309RIT	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704
	ICS309RT	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704

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Аналогичное описание - ICS309

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Integrated Circuit Syst...	ICS345	153Kb / 7P	Triple PLL Field Programmable SS VersaClock Synthesizer Revision 090704
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	ICS308	134Kb / 8P	SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER Revision 090704
	ICS309	132Kb / 8P	SERIAL PROGRAMMABLE TRIPLE PLL SS VERSACLOCK SYNTHESIZER Revision 122704
Integrated Device Techn...	ICS308	179Kb / 9P	SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
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	ICS308	154Kb / 9P	SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
	ICS343	127Kb / 9P	FIELD PROGRAMMABLE TRIPLE OUTPUT SS VERSACLOCK SYNTHESIZER
	ICS345	130Kb / 9P	TRIPLE PLL FIELD PROGRAMMABLE SS VERSACLOCK SYNTHESIZER
Renesas Technology Corp	MK1716-01	371Kb / 10P	SERIAL PROGRAMMABLE PCI SS VERSACLOCK SYNTHESIZER 051310

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