840021AGILFT

840021AGILFT Datasheet

ICS840021I

Part	Datasheet
840021AGILFT	840021AGILFT (pdf)

Related Parts	Information
840021AGILF	840021AGILF

PDF Datasheet Preview
FemtoClock Crystal-to-LVCMOS/LVTTL Clock Generator ICS840021I DATA SHEET The ICS840021I is a Gigabit Ethernet Clock Generator. The ICS840021I uses a 25MHz crystal to HiPerClockS synthesize 125MHz. The ICS840021I has excellent phase jitter performance, over the 1.875MHz 20MHz integration range. The ICS840021I is packaged in a small 8-pin TSSOP and 16-pin VFQFN, making it ideal for use in systems with limited board space. Pin Assignments VDDA 1 OE 2 XTAL_OUT 3 XTAL_IN 4 8 VDD 7 Q0 6 GND 5 RESERVED • One LVCMOS/LVTTL output, output impedance • Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal • Output frequency 125MHz • VCO range 560MHz to 680MHz • RMS phase jitter 125MHz, using a 25MHz crystal 1.875MHz - 20MHz 0.48ps typical 3.3V • RMS phase noise at 125MHz typical • Phase noise: Offset Noise Power 100Hz dBc/Hz 1kHz dBc/Hz 10kHz dBc/Hz 100Hz dBc/Hz • Voltage Supply Modes: VDD/VDDA = 3.3V VDD/VDDA = 2.5V • -40°C to 85°C ambient operating temperature • Available in both standard RoHS 5 and lead-free RoHS 6 packages ICS840021I 8-Lead TSSOP 4.40mm x 3.0mm x 0.925mm package body G Package Top View Block Diagram OE Pullup VDDA 16 15 14 13 12 Q0 XTAL_OUT 2 11 VDD XTAL_IN 3 Ordering Information Table Ordering Information Part/Order Number 840021AGI 840021AGIT 840021AGILF 840021AGILFT 840021AKILF 840021AKILFT Marking 021AI 21AIL 1AIL Package 8 Lead TSSOP 8 Lead TSSOP “Lead-Free” 8 Lead TSSOP “Lead-Free” 8 Lead TSSOP “Lead-Free” 16 Lead VFQFN “Lead-Free” 16 Lead VFQFN Shipping Packaging Tube 2500 Tape & Reel Tube 2500 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. ICS840021I Data Sheet FEMTOCLOCK CRYSTAL-TO-LVCMOS/LVTTL CLOCK GENERATOR Page 11 9 1 2 1 3 11 13 14 Description of Change Ordering Information Table - Added Lead-Free Marking. Added LVCMOS to XTAL Interface section. Changed formatting throughout data sheet Pin Assignment - changed pin 5 from nc to Reserved. Pin Description Table - changed pin 5 from nc to Reserved. Add 16 VFQFN Pin Assignment. Absolute Maximum Ratings - added 16 VFQFN Package Thermal Impedance information. Added 16 VFQFN Air Flow Table. Added 16 VFQFN Package Drawing and Dimensions. Ordering Information Table - added 16 VFQFN ordering information. Deleted “Proposed” label throughout the datasheet. Feature Section corrected temperature bullet from 40°C to -40°C. Added new VFQFN bottom view package drawing. Date 7-30-07 1-20-09 5/4/09 6/25/09 7/14/09 1/27/10 2010 Integrated Device Technology, Inc. ICS840021I Data Sheet FEMTOCLOCK CRYSTAL-TO-LVCMOS/LVTTL 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.

PDF Datasheet Preview

FemtoClock Crystal-to-LVCMOS/LVTTL Clock Generator

ICS840021I

DATA SHEET

The ICS840021I is a Gigabit Ethernet Clock

Generator. The ICS840021I uses a 25MHz crystal to

HiPerClockS synthesize 125MHz. The ICS840021I has excellent
phase jitter performance, over the 1.875MHz 20MHz
integration range. The ICS840021I is packaged in a
small 8-pin TSSOP and 16-pin VFQFN, making it ideal for use in
systems with limited board space.

Pin Assignments

VDDA 1 OE 2

XTAL_OUT 3 XTAL_IN 4
8 VDD 7 Q0 6 GND 5 RESERVED
• One LVCMOS/LVTTL output, output impedance
• Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
• Output frequency 125MHz
• VCO range 560MHz to 680MHz
• RMS phase jitter 125MHz, using a 25MHz crystal
1.875MHz - 20MHz 0.48ps typical 3.3V
• RMS phase noise at 125MHz typical
• Phase noise:

Offset

Noise Power
100Hz dBc/Hz
1kHz dBc/Hz
10kHz dBc/Hz
100Hz dBc/Hz
• Voltage Supply Modes:

VDD/VDDA = 3.3V VDD/VDDA = 2.5V
• -40°C to 85°C ambient operating temperature
• Available in both standard RoHS 5 and lead-free RoHS 6
packages

ICS840021I
8-Lead TSSOP 4.40mm x 3.0mm x 0.925mm package body

G Package Top View

Block Diagram

OE Pullup

VDDA
16 15 14 13
12 Q0

XTAL_OUT 2
11 VDD

XTAL_IN 3
Ordering Information
Table Ordering Information

Part/Order Number 840021AGI 840021AGIT 840021AGILF 840021AGILFT 840021AKILF 840021AKILFT

Marking 021AI 21AIL 1AIL

Package 8 Lead TSSOP 8 Lead TSSOP “Lead-Free” 8 Lead TSSOP “Lead-Free” 8 Lead TSSOP “Lead-Free” 16 Lead VFQFN “Lead-Free” 16 Lead VFQFN

Shipping Packaging Tube
2500 Tape & Reel Tube
2500 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.

ICS840021I Data Sheet

FEMTOCLOCK CRYSTAL-TO-LVCMOS/LVTTL CLOCK GENERATOR

Page 11 9
1 2 1 3 11 13 14

Description of Change
Ordering Information Table - Added Lead-Free Marking.

Added LVCMOS to XTAL Interface section. Changed formatting throughout data sheet

Pin Assignment - changed pin 5 from nc to Reserved. Pin Description Table - changed pin 5 from nc to Reserved.
Add 16 VFQFN Pin Assignment. Absolute Maximum Ratings - added 16 VFQFN Package Thermal Impedance information. Added 16 VFQFN Air Flow Table. Added 16 VFQFN Package Drawing and Dimensions. Ordering Information Table - added 16 VFQFN ordering information.

Deleted “Proposed” label throughout the datasheet.

Feature Section corrected temperature bullet from 40°C to -40°C. Added new VFQFN bottom view package drawing.

Date 7-30-07 1-20-09 5/4/09
6/25/09
7/14/09 1/27/10
2010 Integrated Device Technology, Inc.

ICS840021I Data Sheet

FEMTOCLOCK CRYSTAL-TO-LVCMOS/LVTTL 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 840021AGILFT Datasheet file may be downloaded here without warranties.

Datasheet ID: 840021AGILFT 637087