ICS841S04BGILF

ICS841S04BGILF Datasheet

ICS841S04I

Part	Datasheet
ICS841S04BGILF	ICS841S04BGILF (pdf)

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PCI EXPRESS CLOCK GENERATOR ICS841S04I The ICS841S04I is a PLL-based clock generator specifically designed for PCI_Express Clock HiPerClockS Generation applications. This device generates a 100MHz HCSL clock. The device offers a HCSL Host Clock Signal Level clock output from a clock input reference of 25MHz. The input reference may be derived from an external source or by the addition of a 25MHz crystal to the on-chip crystal oscillator. An external reference may be applied to the XTAL_IN pin with the XTAL_OUT pin left floating. The device offers spread spectrum clock output for reduced EMI applications. An I2C bus interface is used to enable or disable spread spectrum operation as well as select either a down spread value of or The ICS841S04I is available in both standard and lead-free 24-Lead TSSOP packages. • Four 0.7V current mode differential HCSL output pairs • Crystal oscillator interface, 25MHz • Output frequency 100MHz • RMS period jitter 3ps maximum • Output skew 70ps maximum • Cycle-to-cyle jitter 35ps maximum • I2C support with readback capabilities up to 400kHz • Spread Spectrum for electromagnetic interference EMI reduction • 3.3V operating supply mode • -40°C to 85°C ambient operating temperature • Available in both standard RoHS 5 and lead-free RoHS 6 packages BLOCK DIAGRAM 25MHz XTAL_IN XTAL_OUT SDATA Pullup SCLK Pullup I2C Logic IREF Divider Network SRCT[1:4] SRCC[1:4] PIN ASSIGNMENT SRCT3 1 SRCC3 2 VSS_SRC 3 VDD_SRC 4 SRCT2 5 SRCC2 6 SRCT1 7 SRCC1 8 VSS_SRC 9 VDD_SRC 10 VSS_SRC 11 IREF 12 24 SRCC4 23 SRCT4 22 VDD_SRC 21 SDATA 20 SCLK 19 XTAL_OUT 18 XTAL_IN 17 VDD_REF 16 VSS_REF 15 nc 14 VDDA 13 VSSA ICS841S04I 24-Lead TSSOP 4.40mm x 7.8mm x 0.92mm package body G Package Top View The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization and/or qualification. Integrated Device Technology, Incorporated IDT reserves the right to change any circuitry or specifications without notice. IDT / ICS PCI EXPRESS CLOCK GENERATOR ICS841S04I PCI EXPRESS CLOCK GENERATOR TABLE PIN DESCRIPTIONS Number 1, 2 5, 6 7, 8 3, 9, 11 4, 10, 22 13 14 15 TABLE ORDERING INFORMATION Part/Order Number Marking Package Shipping Packaging Temperature ICS841S04BGI ICS841S04BGI 24 Lead TSSOP tube -40°C to 85°C ICS841S04BGIT ICS841S04BGI 24 Lead TSSOP 2500 tape & reel -40°C to 85°C ICS841S04BGILF ICS841S04BGIL 24 Lead "Lead-Free" TSSOP tube -40°C to 85°C ICS841S04BGILFT ICS841S04BGIL 24 Lead "Lead-Free" TSSOP 2500 tape & reel -40°C to 85°C NOTE Parts that are ordered with an"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, Incorporated IDT assumes no responsibility for either its use or for 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 and industrial applications. Any other applications such as those requiring 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 PCI EXPRESS CLOCK GENERATOR ICS841S04I PCI EXPRESS CLOCK GENERATOR Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support 480-763-2056 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S. Asia Pacific and Japan Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505 Europe IDT Europe, Limited 321 Kingston Road Leatherhead, Surrey KT22 7TU England +44 0 1372 363 339 Fax +44 0 1372 378851 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS 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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PCI EXPRESS CLOCK GENERATOR

ICS841S04I

The ICS841S04I is a PLL-based clock generator
specifically designed for PCI_Express Clock

HiPerClockS Generation applications. This device generates a
100MHz HCSL clock. The device offers a HCSL

Host Clock Signal Level clock output from a clock
input reference of 25MHz. The input reference may be derived
from an external source or by the addition of a 25MHz crystal to
the on-chip crystal oscillator. An external reference may be applied
to the XTAL_IN pin with the XTAL_OUT pin left floating.

The device offers spread spectrum clock output for reduced EMI applications. An I2C bus interface is used to enable or disable spread spectrum operation as well as select either a down spread value of or

The ICS841S04I is available in both standard and lead-free 24-Lead TSSOP packages.
• Four 0.7V current mode differential HCSL output pairs
• Crystal oscillator interface, 25MHz
• Output frequency 100MHz
• RMS period jitter 3ps maximum
• Output skew 70ps maximum
• Cycle-to-cyle jitter 35ps maximum
• I2C support with readback capabilities up to 400kHz
• Spread Spectrum for electromagnetic interference EMI
reduction
• 3.3V operating supply mode
• -40°C to 85°C ambient operating temperature
• Available in both standard RoHS 5 and lead-free RoHS 6
packages

BLOCK DIAGRAM
25MHz

XTAL_IN

XTAL_OUT

SDATA Pullup

SCLK Pullup

I2C Logic

IREF

Divider Network

SRCT[1:4] SRCC[1:4]

PIN ASSIGNMENT

SRCT3 1 SRCC3 2 VSS_SRC 3 VDD_SRC 4 SRCT2 5 SRCC2 6 SRCT1 7 SRCC1 8 VSS_SRC 9 VDD_SRC 10 VSS_SRC 11

IREF 12
24 SRCC4 23 SRCT4 22 VDD_SRC 21 SDATA 20 SCLK 19 XTAL_OUT 18 XTAL_IN 17 VDD_REF 16 VSS_REF 15 nc 14 VDDA 13 VSSA

ICS841S04I
24-Lead TSSOP 4.40mm x 7.8mm x 0.92mm
package body G Package

Top View

The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization and/or qualification. Integrated Device Technology, Incorporated IDT reserves the right to change any circuitry or specifications without notice.

IDT / ICS PCI EXPRESS CLOCK GENERATOR

ICS841S04I PCI EXPRESS CLOCK GENERATOR

TABLE PIN DESCRIPTIONS

Number 1, 2 5, 6 7, 8
3, 9, 11 4, 10, 22
13 14 15
TABLE ORDERING INFORMATION

Part/Order Number

Marking

Package

Shipping Packaging Temperature

ICS841S04BGI

ICS841S04BGI
24 Lead TSSOP
tube
-40°C to 85°C

ICS841S04BGIT

ICS841S04BGI
24 Lead TSSOP
2500 tape & reel -40°C to 85°C

ICS841S04BGILF

ICS841S04BGIL
24 Lead "Lead-Free" TSSOP
tube
-40°C to 85°C

ICS841S04BGILFT

ICS841S04BGIL
24 Lead "Lead-Free" TSSOP 2500 tape & reel -40°C to 85°C

NOTE Parts that are ordered with an"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, Incorporated IDT assumes no responsibility for either its use or for 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 and industrial applications. Any other applications such as those requiring 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 PCI EXPRESS CLOCK GENERATOR

ICS841S04I PCI EXPRESS CLOCK GENERATOR

Innovate with IDT and accelerate your future networks. Contact:

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

For Tech Support
480-763-2056

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S.

Asia Pacific and Japan

Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

Europe

IDT Europe, Limited 321 Kingston Road Leatherhead, Surrey KT22 7TU England +44 0 1372 363 339 Fax +44 0 1372 378851
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS 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 ICS841S04BGILF Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS841S04BGILF 637096