8440258CK-46LFT

8440258CK-46LFT Datasheet

ICS8440258-46

Part	Datasheet
8440258CK-46LFT	8440258CK-46LFT (pdf)

Related Parts	Information
8440258CK-46LF	8440258CK-46LF

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Crystal/LVCMOS-toLVDS/LVCMOS Frequency Synthesizer ICS8440258-46 DATA SHEET The ICS8440258-46 is an eight output synthesizer optimized to generate Ethernet clocks. The device will generate 125MHz and 25MHz clocks from a 25MHz crystal with a very good jitter performance. The ICS8440258-46 uses IDT’s 3RD generation low phase noise VCO technology. The ICS8440258-46 is packaged in a small, 5mm x 5mm VFQFN package. Pin Assignment • Four differential LVDS outputs at 125MHz Two LVCMOS/LVTTL single-ended outputs at 125MHz Two LVCMOS/LVTTL single-ended outputs at 25MHz • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input • RMS phase jitter 125MHz, using a 25MHz crystal 1.875MHz - 20MHz 0.5ps typical • Full 2.5V supply mode • 0°C to 70°C ambient operating temperature • Lead-free RoHS 6 packaging XTAL_IN XTAL_OUT nXTAL_SEL REF_CLK MR VDD nPLL_SEL VDDA Q0 nQ0 GND Q1 nQ1 VDD Q2 nQ2 32 31 30 29 28 27 26 25 9 10 11 12 13 14 15 16 nc GND Q7 VDDO2 Q6 GND Q3 nQ3 VDD GND Q4 VDDO1 Q5 GND ICS8440258-46 32-Lead VFQFN 5mm x 5mm x 0.925mm package body 3.15mm x 3.15mm ePad size K Package Top View nPLL_SEL Pulldown XTAL_IN XTAL_OUT 25MHz OSC 0 REF_CLK Pulldown nXTAL_SEL Pulldown Block Diagram 1 nQ2 Phase ÷5 Q3 Detector ÷25 2013 Integrated Device Technology, Inc. Ordering Information Table Ordering Information Part/Order Number Marking 8440258CK-46LF ICS0258C46L 8440258CK-46LFT ICS0258C46L CRYSTAL/LVCMOS-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER Package “Lead-Free” 32 Lead VFQFN “Lead-Free” 32 Lead VFQFN Shipping Packaging Tray Tape & Reel Temperature 0C to 70C 0C to 70C 2013 Integrated Device Technology, Inc. ICS8440258-46 Data Sheet CRYSTAL/LVCMOS-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER 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 Sales +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 applications involving extreme environmental conditions or 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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Crystal/LVCMOS-toLVDS/LVCMOS Frequency Synthesizer

ICS8440258-46

DATA SHEET

The ICS8440258-46 is an eight output synthesizer optimized to generate Ethernet clocks. The device will generate 125MHz and 25MHz clocks from a 25MHz crystal with a very good jitter performance. The ICS8440258-46 uses IDT’s 3RD generation low phase noise VCO technology. The ICS8440258-46 is packaged in a small, 5mm x 5mm VFQFN package.

Pin Assignment
• Four differential LVDS outputs at 125MHz

Two LVCMOS/LVTTL single-ended outputs at 125MHz Two LVCMOS/LVTTL single-ended outputs at 25MHz
• Selectable crystal oscillator interface or LVCMOS/LVTTL
single-ended input
• RMS phase jitter 125MHz, using a 25MHz crystal
1.875MHz - 20MHz 0.5ps typical
• Full 2.5V supply mode
• 0°C to 70°C ambient operating temperature
• Lead-free RoHS 6 packaging

XTAL_IN XTAL_OUT nXTAL_SEL REF_CLK MR VDD nPLL_SEL VDDA

Q0 nQ0 GND

Q1 nQ1 VDD

Q2 nQ2
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
nc GND Q7 VDDO2 Q6 GND

Q3 nQ3 VDD GND Q4 VDDO1

Q5 GND

ICS8440258-46
32-Lead VFQFN
5mm x 5mm x 0.925mm package body
3.15mm x 3.15mm ePad size

K Package

Top View
nPLL_SEL

Pulldown

XTAL_IN XTAL_OUT
25MHz

OSC 0

REF_CLK Pulldown
nXTAL_SEL Pulldown

Block Diagram
1 nQ2

Phase
÷5 Q3

Detector
÷25
2013 Integrated Device Technology, Inc.
Ordering Information
Table Ordering Information

Part/Order Number

Marking
8440258CK-46LF

ICS0258C46L
8440258CK-46LFT

ICS0258C46L

CRYSTAL/LVCMOS-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER

Package “Lead-Free” 32 Lead VFQFN “Lead-Free” 32 Lead VFQFN

Shipping Packaging Tray

Tape & Reel

Temperature 0C to 70C 0C to 70C
2013 Integrated Device Technology, Inc.

ICS8440258-46 Data Sheet

CRYSTAL/LVCMOS-TO-LVDS/LVCMOS FREQUENCY SYNTHESIZER

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 Sales
+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 applications involving extreme environmental conditions or 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 8440258CK-46LFT Datasheet file may be downloaded here without warranties.

Datasheet ID: 8440258CK-46LFT 636712