8T3910BNLGI

8T3910BNLGI Datasheet

IDT8T3910I

Part	Datasheet
8T3910BNLGI	8T3910BNLGI (pdf)

Related Parts	Information
8T3910BNLGI8	8T3910BNLGI8

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Crystal or Differential to Differential IDT8T3910I Clock Fanout Buffer PRELIMINARY DATA SHEET The IDT8T3910I is a high-performance clock fanout buffer. The input clock can be selected from two differential inputs or one crystal input. The internal oscillator circuit is automatically disabled if the crystal input is not selected. The selected signal is distributed to ten differential outputs which can be configured as LVPECL, LVDS or HSCL outputs. In addition, an LVCMOS output is provided. The user should always turn off this LVCMOS output when the clock is over 200MHz. The differential outputs can be disabled into an high-impedance state. The device is designed for signal fanout of high-frequency, low phase-noise clock and data signal. The outputs are at a defined level when inputs are open or shorted. It’s designed to operate from a 3.3V core power supply, and either a 3.3V or 2.5V output operating supply. • Two differential reference clock input pairs • Differential input pairs can accept the following differential input levels LVPECL, LVDS, HCSL • Crystal Oscillator Interface • Crystal input frequency range 10MHz to 40MHz • Two banks, each has five differential output pairs that can be configured as LVPECL or LVDS or HCSL • One single-ended reference output with synchronous enable to avoid clock glitch • Output skew Bank A and Bank B at the same output level 32ps typical • Part-to-part skew 200ps typical • Additive RMS phase jitter 0.22ps typical • Power supply modes • Output supply voltage modes: VCC/VDDO 3.3V/3.3V 3.3V/2.5V • -40°C to 85°C ambient operating temperature • Available in lead-free RoHS 6 package 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. IDT8T3910BNLI MARCH 23, 2012 2012 Integrated Device Technology, Inc. IDT8T3910I Preliminary Data Sheet Block Diagram CRYSTAL OR DIFFERNTIAL-TO-DIFFERENTIAL CLOCK FANOUT BUFFER SMODEA[1:0] Pulldown REF_SEL[1:0] Pulldown CLK0 Pulldown nCLK0 Pullup/Pulldown CLK1 Pulldown nCLK1 Pullup/Pulldown XTAL_IN XTAL_OUT or 11 IREF SMODEB[1:0] Pulldown OE_SE Pulldown SYNC QA0 nQA0 QA1 nQA1 QA2 nQA2 QA3 nQA3 QA4 nQA4 QB0 nQB0 QB1 nQB1 QB2 nQB2 QB3 nQB3 QB4 nQB4 REFOUT IDT8T3910BNLI MARCH 23, 2012 2012 Integrated Device Technology, Inc. IDT8T3910I Preliminary Data Sheet Pin Assignment Ordering Information Table Ordering Information Part/Order Number 8T3910BNLGI 8T3910BNLGI8 Marking IDT8T3910BNLGI Package Lead-Free, 48 Lead VFQFN Lead-Free, 48 Lead VFQFN Shipping Packaging Tray 1500 Tape & Reel Temperature -40°C to 85°C -40°C to 85°C NOTE Parts that are ordered with an "G" 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. IDT8T3910BNLI MARCH 23, 2012 2012 Integrated Device Technology, Inc. IDT8T3910I Preliminary Data Sheet CRYSTAL OR DIFFERNTIAL-TO-DIFFERENTIAL CLOCK 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.

PDF Datasheet Preview

Crystal or Differential to Differential

IDT8T3910I

Clock Fanout Buffer

PRELIMINARY DATA SHEET

The IDT8T3910I is a high-performance clock fanout buffer. The input clock can be selected from two differential inputs or one crystal input. The internal oscillator circuit is automatically disabled if the crystal input is not selected. The selected signal is distributed to ten differential outputs which can be configured as LVPECL, LVDS or HSCL outputs. In addition, an LVCMOS output is provided. The user should always turn off this LVCMOS output when the clock is over 200MHz. The differential outputs can be disabled into an high-impedance state. The device is designed for signal fanout of high-frequency, low phase-noise clock and data signal. The outputs are at a defined level when inputs are open or shorted. It’s designed to operate from a 3.3V core power supply, and either a 3.3V or 2.5V output operating supply.
• Two differential reference clock input pairs
• Differential input pairs can accept the following differential input
levels LVPECL, LVDS, HCSL
• Crystal Oscillator Interface
• Crystal input frequency range 10MHz to 40MHz
• Two banks, each has five differential output pairs that can be
configured as LVPECL or LVDS or HCSL
• One single-ended reference output with synchronous enable to
avoid clock glitch
• Output skew Bank A and Bank B at the same output level 32ps
typical
• Part-to-part skew 200ps typical
• Additive RMS phase jitter 0.22ps typical
• Power supply modes
• Output supply voltage modes:

VCC/VDDO 3.3V/3.3V 3.3V/2.5V
• -40°C to 85°C ambient operating temperature
• Available in lead-free RoHS 6 package

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.

IDT8T3910BNLI MARCH 23, 2012
2012 Integrated Device Technology, Inc.

IDT8T3910I Preliminary Data Sheet

Block Diagram

CRYSTAL OR DIFFERNTIAL-TO-DIFFERENTIAL CLOCK FANOUT BUFFER

SMODEA[1:0] Pulldown

REF_SEL[1:0] Pulldown

CLK0 Pulldown
nCLK0 Pullup/Pulldown

CLK1 Pulldown
nCLK1 Pullup/Pulldown

XTAL_IN

XTAL_OUT
or 11

IREF SMODEB[1:0] Pulldown

OE_SE Pulldown

SYNC

QA0 nQA0 QA1 nQA1 QA2 nQA2 QA3 nQA3 QA4 nQA4

QB0 nQB0 QB1 nQB1 QB2 nQB2 QB3 nQB3 QB4 nQB4

REFOUT

IDT8T3910BNLI MARCH 23, 2012
2012 Integrated Device Technology, Inc.

IDT8T3910I Preliminary Data Sheet

Pin Assignment
Ordering Information
Table Ordering Information

Part/Order Number 8T3910BNLGI 8T3910BNLGI8

Marking IDT8T3910BNLGI

Package Lead-Free, 48 Lead VFQFN Lead-Free, 48 Lead VFQFN

Shipping Packaging Tray
1500 Tape & Reel

Temperature -40°C to 85°C -40°C to 85°C

NOTE Parts that are ordered with an "G" 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.

IDT8T3910BNLI MARCH 23, 2012
2012 Integrated Device Technology, Inc.

IDT8T3910I Preliminary Data Sheet

CRYSTAL OR DIFFERNTIAL-TO-DIFFERENTIAL CLOCK 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 8T3910BNLGI Datasheet file may be downloaded here without warranties.

Datasheet ID: 8T3910BNLGI 636748