ICS308RIT

ICS308RIT Datasheet

SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER ICS308

Part	Datasheet
ICS308RIT	ICS308RIT (pdf)

Related Parts	Information
ICS308R	ICS308R
ICS308RI	ICS308RI
ICS308RT	ICS308RT

PDF Datasheet Preview
DATASHEET SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER ICS308 The ICS308 is a versatile serially programmable, quad PLL clock source. The ICS308 can generate any frequency from 250 kHz 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. Smooth transitions in which the clock duty cycle remains roughly 50% are guaranteed if the output divider is not changed. The device includes a PDTS pin which tri-states the output clocks and powers down the entire chip. The ICS308 default for non-programmed start-up are buffered reference clock outputs on all clock output pins. • Packaged in 20-pin SSOP QSOP • Available in Pb lead free package • Operating voltage of V • Highly accurate frequency generation • M/N Multiplier PLL M = N = • Serially programmable user determines the output frequency via a 3-wire interface • Eliminates need for custom quartz oscillators • Input crystal frequency of 5 - 27 MHz •Optional programmable on-chip crystal capacitors • Output clock frequencies up to 200 MHz • Reference clock output • Power down tri-state mode • Very low jitter NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram STROBE SCLK DATA Crystal or clock input X1/ICLK Crystal O s c illa to r External capacitors are required with a crystal input. VDD 3 PLL1 PLL2 PLL3 PLL4 Divide Logic and Output Enable Control GND 2 PDTS CLK1 CLK2 CLK3 CLK4 CLK5 CLK6 CLK7 CLK8 CLK9 IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 1 ICS308 ICS308 SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER SER PROG CLOCK SYNTHESIZER Pin Assignment DATA X 1 /IC L K CLK9 CLK1 CLK2 CLK3 CLK4 STROBE SCLK PDTS CLK5 CLK6 CLK7 CLK8 Ordering Information E1 E A Symbol A A1 A2 b c D E E1 e L α Basic Basic For reference only. Controlling dimensions in mm. SEATING PLANE L aaa C Part / Order Number 308R 308RT* 308RI* 308RIT* 308RLF 308RLFT 308RILF 308RILFT Marking ICS308R ICS308RI 308RLF 308RILF Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Package 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP Temperature 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C *NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 8 ICS308 ICS308 SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER SER PROG CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support Corporate Headquarters Integrated Device Technology, Inc. 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

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DATASHEET

SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER ICS308

The ICS308 is a versatile serially programmable, quad PLL clock source. The ICS308 can generate any frequency from 250 kHz 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. Smooth transitions in which the clock duty cycle remains roughly 50% are guaranteed if the output divider is not changed.

The device includes a PDTS pin which tri-states the output clocks and powers down the entire chip.

The ICS308 default for non-programmed start-up are buffered reference clock outputs on all clock output pins.
• Packaged in 20-pin SSOP QSOP
• Available in Pb lead free package
• Operating voltage of V
• Highly accurate frequency generation
• M/N Multiplier PLL M = N =
• Serially programmable user determines the output
frequency via a 3-wire interface
• Eliminates need for custom quartz oscillators
• Input crystal frequency of 5 - 27 MHz
•Optional programmable on-chip crystal capacitors
• Output clock frequencies up to 200 MHz
• Reference clock output
• Power down tri-state mode
• Very low jitter

NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Block Diagram

STROBE SCLK DATA

Crystal or clock input X1/ICLK

Crystal O s c illa to r

External capacitors are required with a crystal input.

VDD 3

PLL1 PLL2 PLL3 PLL4

Divide Logic and Output Enable Control

GND 2

PDTS

CLK1 CLK2 CLK3 CLK4 CLK5 CLK6 CLK7 CLK8 CLK9

IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 1

ICS308

ICS308 SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER

SER PROG CLOCK SYNTHESIZER

Pin Assignment

DATA

X 1 /IC L K

CLK9

CLK1

CLK2

CLK3

CLK4

STROBE

SCLK

PDTS

CLK5

CLK6

CLK7

CLK8
Ordering Information

E1 E A

Symbol A A1 A2 b c D E E1 e L α

Basic

Basic
*For reference only. Controlling dimensions in mm.

SEATING

PLANE L
aaa C

Part / Order Number
308R* 308RT* 308RI* 308RIT* 308RLF 308RLFT 308RILF 308RILFT

Marking

ICS308R ICS308RI 308RLF 308RILF

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Package
20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP

Temperature
0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C 0 to +70° C 0 to +70° C -40 to +85° C -40 to +85° C
*NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant.

While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.

IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 8

ICS308

ICS308 SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER

SER PROG CLOCK SYNTHESIZER

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support

Corporate Headquarters

Integrated Device Technology, Inc.
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ICS308RIT Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS308RIT 636977