ICS83940DYIT

ICS83940DYIT Datasheet

ICS83940DI

Part	Datasheet
ICS83940DYIT	ICS83940DYIT (pdf)

Related Parts	Information
ICS83940DYI	ICS83940DYI

PDF Datasheet Preview
Low Skew, 1-to18 LVPECL-to-LVCMOS/LVTTL Fanout Buffer ICS83940DI DATA SHEET The ICS83940DI is a low skew, 1-to-18 LVPECL- to-LVCMOS/LVTTL Fanout Buffer. The ICS83940DI has two selectable clock inputs. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive series or parallel terminated transmission lines. The ICS83940DI is characterized at full 3.3V and 2.5V or mixed 3.3V core, 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS83940DI ideal for those clock distribution applications demanding well defined performance and repeatability. Block Diagram CLK_SEL Pulldown PCLK Pulldown nPCLK Pullup/Pulldown LVCMOS_CLK Pulldown Q0:Q17 • Eighteen LVCMOS/LVTTL outputs • Selectable LVCMOS_CLK or LVPECL clock inputs • PCLK, nPCLK pair can accept the following differential input levels LVPECL, CML, SSTL • LVCMOS_CLK supports the following input types LVCMOS or LVTTL • Maximum output frequency 250MHz • Output skew 150ps maximum • Part-to-part skew 750ps maximum • Operating supply modes • Core/Output 3.3V/3.3V 3.3V/2.5V 2.5V/2.5V • -40°C to 85°C ambient operating temperature • Available in both standard RoHS 5 and lead-free RoHS 6 packages Pin Assignments Q0 Q1 Q2 VDDO Q3 Q4 Q5 GND 32 31 30 29 28 27 26 25 D GND 1 24 Q6 E GND 2 23 Q7 S LVCMOS_CLK 3 O CLK_SEL 4 ICS83940DI 22 Q8 21 VDD P PCLK 5 20 Q9 O nPCLK 6 19 Q10 R VDD 7 18 Q11 PVDDO 8 17 GND 9 10 11 12 13 14 15 16 Q17 Q16 Q15 GND Q14 Q13 Q12 VDDO 32 Lead VFQFN 5mm x 5mm x 0.925mm package body K Package Top View Ordering Information Table Ordering Information Part/Order Number 83940DYI 83940DYIT 83940DYILF 83940DYILFT 83940DKILF 83940DKILFT Marking ICS83940DYI ICS83940DYIL ICS83940DIL Package 32 Lead LQFP 32 Lead LQFP “Lead-Free” 32 Lead LQFP “Lead-Free” 32 Lead LQFP PROPOSED “Lead-Free” 32 Lead VFQFN “Lead-Free” 32 Lead VFQFN Shipping Packaging Tray 1000 Tape & Reel Tray 1000 Tape & Reel Tray 2500 Tape & Reel Temperature -40°C to 85°C -40°C to 85°C -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. 2010 Integrated Device Technology, Inc. ICS83940DI Data Sheet LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER Table Page Description of Change Pin Characteristics table - changed ROUT maximum to maximum. Delete RPULLUP row. 3.3V Output Load AC Test Circuit diagram - corrected GND equation to read -1.65V... from -1.165V... Added LVTTL to title. Updated format. Features Section - added Lead-Free bullet. Application Information Section - added Recommendations for Unused Input and Output Pins. 10 Application Information Section - added LVPECL Clock Input Interface. 13 Ordering Information Table - added Lead-Free part number, marking, and note. Updated datasheet format. Absolute Maximum Ratings - corrected Storage Temperature from "-40°C to 125°C" to "-65°C to 150°C". Added 32 Lead VFQFN Pin Assignment. 13 Added VFQFN Thermal Release Path section. T6B T7B 14 Added 32 VFQFN Thermal Table. 16 Added 32 Lead VFQFN Package and Dimensions Table. 17 Ordering Information Table - added 32 Lead VFQFN ordering information. Converted datasheet format. Pin Characteristics Table - ROUT error, typical spec deleted. 11 Updated Wiring the Differential Input to Accept Single-Ended Levels. 16 Updated 32 VFQFN Package Outline. Date 12/12/02 11/27/06 2/21/07 8/13/09 9/7/10 2010 Integrated Device Technology, Inc. ICS83940DI Data Sheet LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER We’ve Got Your Timing Solution 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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Low Skew, 1-to18 LVPECL-to-LVCMOS/LVTTL Fanout Buffer

ICS83940DI

DATA SHEET

The ICS83940DI is a low skew, 1-to-18 LVPECL- to-LVCMOS/LVTTL Fanout Buffer. The ICS83940DI has two selectable clock inputs. The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive series or parallel terminated transmission lines.

The ICS83940DI is characterized at full 3.3V and 2.5V or mixed 3.3V core, 2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the ICS83940DI ideal for those clock distribution applications demanding well defined performance and repeatability.

Block Diagram

CLK_SEL Pulldown

PCLK Pulldown
nPCLK Pullup/Pulldown

LVCMOS_CLK Pulldown

Q0:Q17
• Eighteen LVCMOS/LVTTL outputs
• Selectable LVCMOS_CLK or LVPECL clock inputs
• PCLK, nPCLK pair can accept the following differential input
levels LVPECL, CML, SSTL
• LVCMOS_CLK supports the following input types LVCMOS or

LVTTL
• Maximum output frequency 250MHz
• Output skew 150ps maximum
• Part-to-part skew 750ps maximum
• Operating supply modes
• Core/Output
3.3V/3.3V 3.3V/2.5V 2.5V/2.5V
• -40°C to 85°C ambient operating temperature
• Available in both standard RoHS 5 and lead-free RoHS 6
packages

Pin Assignments

Q0 Q1 Q2 VDDO Q3 Q4 Q5 GND
32 31 30 29 28 27 26 25

D GND 1
24 Q6

E GND 2
23 Q7

S LVCMOS_CLK 3 O CLK_SEL 4

ICS83940DI
22 Q8 21 VDD

P PCLK 5
20 Q9

O nPCLK 6
19 Q10

R VDD 7
18 Q11

PVDDO 8
17 GND
9 10 11 12 13 14 15 16

Q17 Q16 Q15 GND Q14 Q13 Q12 VDDO
32 Lead VFQFN 5mm x 5mm x 0.925mm package body

K Package Top View
Ordering Information
Table Ordering Information

Part/Order Number 83940DYI 83940DYIT 83940DYILF 83940DYILFT 83940DKILF 83940DKILFT

Marking ICS83940DYI ICS83940DYIL ICS83940DIL

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

PROPOSED “Lead-Free” 32 Lead VFQFN
“Lead-Free” 32 Lead VFQFN

Shipping Packaging Tray
1000 Tape & Reel Tray
1000 Tape & Reel Tray
2500 Tape & Reel

Temperature -40°C to 85°C -40°C to 85°C -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.
2010 Integrated Device Technology, Inc.

ICS83940DI Data Sheet

LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER

Table

Page Description of Change

Pin Characteristics table - changed ROUT maximum to maximum.

Delete RPULLUP row.
3.3V Output Load AC Test Circuit diagram - corrected GND equation to read
-1.65V... from -1.165V...

Added LVTTL to title.

Updated format.

Features Section - added Lead-Free bullet.

Application Information Section - added Recommendations for Unused Input and

Output Pins. 10 Application Information Section - added LVPECL Clock Input Interface.
13 Ordering Information Table - added Lead-Free part number, marking, and note.

Updated datasheet format.

Absolute Maximum Ratings - corrected Storage Temperature from
"-40°C to 125°C" to "-65°C to 150°C".

Added 32 Lead VFQFN Pin Assignment.
13 Added VFQFN Thermal Release Path section.

T6B T7B
14 Added 32 VFQFN Thermal Table. 16 Added 32 Lead VFQFN Package and Dimensions Table.
17 Ordering Information Table - added 32 Lead VFQFN ordering information.

Converted datasheet format.

Pin Characteristics Table - ROUT error, typical spec deleted.
11 Updated Wiring the Differential Input to Accept Single-Ended Levels.
16 Updated 32 VFQFN Package Outline.

Date 12/12/02
11/27/06 2/21/07 8/13/09 9/7/10
2010 Integrated Device Technology, Inc.

ICS83940DI Data Sheet

LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS/LVTTL FANOUT BUFFER

We’ve Got Your Timing Solution
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 ICS83940DYIT Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS83940DYIT 637081