8745BYILFT

8745BYILFT Datasheet

ICS8745BI

Part	Datasheet
8745BYILFT	8745BYILFT (pdf)

Related Parts	Information
8745BYILF	8745BYILF

PDF Datasheet Preview
1:5 Differential-to-LVDS Zero Delay Clock Generator ICS8745BI DATA SHEET The ICS8745BI is a highly versatile 1:5 LVDS Clock Generator and a member of the HiPerClockS family HiPerClockS of High Performance Clock Solutions from IDT. The ICS8745BI has a fully integrated PLL and can be configured as zero delay buffer, multiplier or divider, and has an output frequency range of 31.25MHz to 700MHz. The Reference Divider, Feedback Divider and Output Divider are each programmable, thereby allowing for the following output-to-input frequency ratios 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, The external feedback allows the device to achieve “zero delay” between the input clock and the output clocks. The PLL_SEL pin can be used to bypass the PLL for system test and debug purposes. In bypass mode, the reference clock is routed around the PLL and into the internal output dividers. • Five differential LVDS outputs designed to meet or exceed the requirements of ANSI TIA/EIA-644 • Selectable differential clock inputs • CLKx, nCLKx pairs can accept the following differential input levels LVPECL, LVDS, LVHSTL, HCSL, SSTL • Output frequency range 31.25MHz to 700MHz • Input frequency range 31.25MHz to 700MHz • VCO range 250MHz to 700MHz • External feedback for “zero delay” clock regeneration with configurable frequencies • Programmable dividers allow for the following output-to-input frequency ratios 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8 • Cycle-to-cycle jitter 30ps maximum • Output skew 40ps maximum • Static phase offset 25ps ± 125ps • Full 3.3V supply voltage • -40°C to 85°C ambient operating temperature • Available in both standard RoHS 5 and lead-free RoHS 6 packages Block Diagram PLL_SEL Pullup CLK0 Pulldown nCLK0 Pullup CLK1 Pulldown nCLK1 Pullup CLK_SEL Pulldown FB_IN Pulldown nFB_IN Pullup ÷1, ÷2, ÷4, ÷8, ÷16, ÷32, ÷64 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8 SEL0 Pulldown SEL1 Pulldown SEL2 Pulldown SEL3 Pulldown MR Pulldown Pin Assignment VDD PLL_SEL VDDA SEL3 VDDO Q4 nQ4 GND Ordering Information Table Ordering Information Part/Order Number 8745BYI 8745BYIT 8745BYILF 8745BYILFT Marking ICS8745BYI ICS8745BYILF Package 32 Lead LQFP 32 Lead LQFP “Lead-Free” 32 Lead LQFP “Lead-Free” 32 Lead LQFP Shipping Packaging Tray 1000 Tape & Reel Tray 1000 Tape & Reel Temperature -40°C to 85°C -40°C to 85°C -40°C to 85°C -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 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 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. 2009 Integrated Device Technology, Inc. ICS8745BI Data Sheet 1:5 DIFFERENTIAL-TO-LVDS ZERO DELAY CLOCK GENERATOR Table Description of Change 5 LVDS DC Characteristics Table - modified VOS 0.90V min. to 1.05V min, 1.15V typical to 1.2V typical, and 1.4V max. to 1.35V max. AC Characteristics Table - changed tPD max limit from 3.9ns to 4.0ns. 15 Added Power Considerations section. Updated format throughout the datasheet. 1 Pin Assignment - corrected pin 14 from Q0 to nQ0. Missed error when converted to new format on April 16, 2007 from March 17, 6 Differential DC Characteristics Table - replaced NOTE 1 with new note. 7 AC Characteristics Table - added thermal note. 11 Updated Differential Clock Input Interface section. 18 Ordering Information Table - Part/Order Number - deleted “ICS” prefix. Updated Header/Footer throughout the document and contact page. Date 3/17/04 4/16/07 6/4/09 2009 Integrated Device Technology, Inc. ICS8745BI Data Sheet 1:5 DIFFERENTIAL-TO-LVDS ZERO DELAY CLOCK GENERATOR 6024 Silver Creek Valley Road San Jose, California 95138 Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775 Technical Support +480-763-2056 DISCLAIMER Integrated Device Technology, Inc. IDT and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties. IDT’s products are not intended for use in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT. Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners. Copyright All rights reserved.

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1:5 Differential-to-LVDS Zero Delay Clock Generator

ICS8745BI

DATA SHEET

The ICS8745BI is a highly versatile 1:5 LVDS Clock

Generator and a member of the HiPerClockS family

HiPerClockS of High Performance Clock Solutions from IDT. The

ICS8745BI has a fully integrated PLL and can be
configured as zero delay buffer, multiplier or divider,
and has an output frequency range of 31.25MHz to 700MHz. The

Reference Divider, Feedback Divider and Output Divider are each
programmable, thereby allowing for the following output-to-input
frequency ratios 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, The external
feedback allows the device to achieve “zero delay” between the input
clock and the output clocks. The PLL_SEL pin can be used to
bypass the PLL for system test and debug purposes. In bypass
mode, the reference clock is routed around the PLL and into the
internal output dividers.
• Five differential LVDS outputs designed to meet
or exceed the requirements of ANSI TIA/EIA-644
• Selectable differential clock inputs
• CLKx, nCLKx pairs can accept the following differential
input levels LVPECL, LVDS, LVHSTL, HCSL, SSTL
• Output frequency range 31.25MHz to 700MHz
• Input frequency range 31.25MHz to 700MHz
• VCO range 250MHz to 700MHz
• External feedback for “zero delay” clock regeneration
with configurable frequencies
• Programmable dividers allow for the following output-to-input
frequency ratios 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8
• Cycle-to-cycle jitter 30ps maximum
• Output skew 40ps maximum
• Static phase offset 25ps ± 125ps
• Full 3.3V supply voltage
• -40°C to 85°C ambient operating temperature
• Available in both standard RoHS 5 and lead-free RoHS 6
packages

Block Diagram

PLL_SEL Pullup

CLK0 Pulldown
nCLK0 Pullup

CLK1 Pulldown nCLK1 Pullup

CLK_SEL Pulldown

FB_IN Pulldown nFB_IN Pullup
÷1, ÷2, ÷4, ÷8,
÷16, ÷32, ÷64
8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8

SEL0 Pulldown SEL1 Pulldown SEL2 Pulldown SEL3 Pulldown

MR Pulldown

Pin Assignment

VDD PLL_SEL VDDA SEL3 VDDO Q4 nQ4 GND
Ordering Information
Table Ordering Information

Part/Order Number 8745BYI 8745BYIT 8745BYILF 8745BYILFT

Marking ICS8745BYI ICS8745BYILF

Package 32 Lead LQFP 32 Lead LQFP “Lead-Free” 32 Lead LQFP “Lead-Free” 32 Lead LQFP

Shipping Packaging Tray
1000 Tape & Reel Tray
1000 Tape & Reel

Temperature -40°C to 85°C -40°C to 85°C -40°C to 85°C -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 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 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.
2009 Integrated Device Technology, Inc.

ICS8745BI Data Sheet
1:5 DIFFERENTIAL-TO-LVDS ZERO DELAY CLOCK GENERATOR

Table

Description of Change
5 LVDS DC Characteristics Table - modified VOS 0.90V min. to 1.05V min, 1.15V typical to 1.2V typical, and 1.4V max. to 1.35V max.

AC Characteristics Table - changed tPD max limit from 3.9ns to 4.0ns.
15 Added Power Considerations section.

Updated format throughout the datasheet.
1 Pin Assignment - corrected pin 14 from Q0 to nQ0. Missed error when converted to new
format on April 16, 2007 from March 17,
6 Differential DC Characteristics Table - replaced NOTE 1 with new note.
7 AC Characteristics Table - added thermal note.
11 Updated Differential Clock Input Interface section.
18 Ordering Information Table - Part/Order Number - deleted “ICS” prefix.

Updated Header/Footer throughout the document and contact page.

Date 3/17/04 4/16/07
6/4/09
2009 Integrated Device Technology, Inc.

ICS8745BI Data Sheet
1:5 DIFFERENTIAL-TO-LVDS ZERO DELAY CLOCK GENERATOR
6024 Silver Creek Valley Road San Jose, California 95138

Sales
800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775

Technical Support
+480-763-2056

DISCLAIMER Integrated Device Technology, Inc. IDT and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties.

IDT’s products are not intended for use in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners.

Copyright All rights reserved.

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 8745BYILFT Datasheet file may be downloaded here without warranties.

Datasheet ID: 8745BYILFT 637199