844625BYILFT

844625BYILFT Datasheet

ICS844625I

Part	Datasheet
844625BYILFT	844625BYILFT (pdf)

Related Parts	Information
844625BYILF	844625BYILF

PDF Datasheet Preview
Crystal-to-LVDS Clock Synthesizer ICS844625I DATA SHEET The ICS844625I is a high frequency clock generator. The ICS844625I uses an external 25MHz crystal to synthesize 312.5MHz, 156.25MHz and 125MHz clocks. The ICS844625I has excellent cycle-to-cycle and RMS period jitter performance. The ICS844625I operates at full 3.3V, 2.5V or mixed 3.3V, 2.5V supply modes and is available in a fully RoHS compliant 48-lead TQFP, E-Pad package. • Ten selectable differential LVDS outputs • Output frequencies of 312.5MHz, 156.25MHz or 125MHz using a 25MHz crystal. • Crystal oscillator interface designed for 18pF, 25MHz parallel resonant crystal • Cycle-to-cycle jitter 13ps typical • RMS phase jitter at 125MHz 1.875MHz - 20MHz : 0.417ps typical , VDD = 3.3V • RMS phase jitter at 156.25MHz 1.875MHz - 20MHz : 0.387ps typical , VDD = 3.3V • Output duty cycle 50%, typical • Supply modes: VDD / VDDA / VDDO 3.3V / 3.3V / 3.3V 2.5V / 2.5V / 2.5V 3.3V / 3.3V / 2.5V Frequency Table for Bank A, B and C Outputs • -40°C to 85°C ambient operating temperature • Available in lead-free RoHS 6 package Crystal Frequency MHz Feedback Divider VCO Frequency MHz Output Divider Output Frequency MHz Pin Assignment VDD REF_CLK GND BYPASS MR nc SELA0 SELA1 VDDA QA0 nQA0 VDDO XTAL_IN XTAL_OUT GND SELC0 SELC1 OEA VDD OEB OEC SELB0 SELB1 GND 48 47 46 45 44 43 42 41 40 39 38 37 3 ICS844625I 34 5 48 Lead TQFP, E-Pad 32 7mm x 7mm x 1.0mm 31 30 package body Y Package 10 11 Top View 27 26 13 14 15 16 17 18 19 20 21 22 23 24 Ordering Information Table Ordering Information Part/Order Number 844625BYILF 844625BYILFT Marking ICS844625BIL Package “Lead-Free” 48 Lead TQFP, E-Pad “Lead-Free” 48 Lead TQFP, E-Pad Shipping Packaging Tray Tape & Reel Temperature -40C to 85C -40C to 85C 2012 Integrated Device Technology, Inc. ICS844625I Data Sheet CRYSTAL-TO-LVDS CLOCK 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 +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.

PDF Datasheet Preview

Crystal-to-LVDS Clock Synthesizer

ICS844625I

DATA SHEET

The ICS844625I is a high frequency clock generator. The ICS844625I uses an external 25MHz crystal to synthesize 312.5MHz, 156.25MHz and 125MHz clocks. The ICS844625I has excellent cycle-to-cycle and RMS period jitter performance.

The ICS844625I operates at full 3.3V, 2.5V or mixed 3.3V, 2.5V supply modes and is available in a fully RoHS compliant 48-lead TQFP, E-Pad package.
• Ten selectable differential LVDS outputs
• Output frequencies of 312.5MHz, 156.25MHz or 125MHz using a
25MHz crystal.
• Crystal oscillator interface designed for 18pF, 25MHz parallel
resonant crystal
• Cycle-to-cycle jitter 13ps typical
• RMS phase jitter at 125MHz 1.875MHz - 20MHz :
0.417ps typical , VDD = 3.3V
• RMS phase jitter at 156.25MHz 1.875MHz - 20MHz :
0.387ps typical , VDD = 3.3V
• Output duty cycle 50%, typical
• Supply modes:

VDD / VDDA / VDDO 3.3V / 3.3V / 3.3V
2.5V / 2.5V / 2.5V
3.3V / 3.3V / 2.5V

Frequency Table for Bank A, B and C Outputs
• -40°C to 85°C ambient operating temperature
• Available in lead-free RoHS 6 package

Crystal Frequency MHz Feedback Divider

VCO Frequency MHz

Output Divider

Output Frequency MHz

Pin Assignment

VDD REF_CLK GND BYPASS MR nc SELA0 SELA1 VDDA QA0 nQA0 VDDO

XTAL_IN XTAL_OUT

GND SELC0 SELC1

OEA VDD

OEB OEC SELB0

SELB1 GND
48 47 46 45 44 43 42 41 40 39 38 37
3 ICS844625I 34
5 48 Lead TQFP, E-Pad 32
7mm x 7mm x 1.0mm
31 30
package body

Y Package
10 11

Top View
27 26
13 14 15 16 17 18 19 20 21 22 23 24
Ordering Information
Table Ordering Information

Part/Order Number 844625BYILF 844625BYILFT

Marking ICS844625BIL

Package “Lead-Free” 48 Lead TQFP, E-Pad “Lead-Free” 48 Lead TQFP, E-Pad

Shipping Packaging Tray

Tape & Reel

Temperature -40C to 85C -40C to 85C
2012 Integrated Device Technology, Inc.

ICS844625I Data Sheet

CRYSTAL-TO-LVDS CLOCK 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
+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 844625BYILFT Datasheet file may be downloaded here without warranties.

Datasheet ID: 844625BYILFT 636716