813N252AKI-04LF

813N252AKI-04LF Datasheet


ICS813N252I-04

Part Datasheet
813N252AKI-04LF 813N252AKI-04LF 813N252AKI-04LF (pdf)
Related Parts Information
813N252AKI-04LFT 813N252AKI-04LFT 813N252AKI-04LFT
PDF Datasheet Preview
VCXO Jitter Attenuator & NG Multiplier

ICS813N252I-04

DATA SHEET

The ICS813N252I-04 is a PLL based synchronous multiplier that is optimized for PDH or SONET to Ethernet clock jitter attenuation and frequency translation. The device contains two internal frequency multiplication stages that are cascaded in series. The first stage is a VCXO PLL that is optimized to provide reference clock jitter attenuation. The second stage is a NG frequency multiplier that provides the low jitter, high frequency Ethernet output clock that easily meets Gigabit and 10 Gigabit Ethernet jitter requirements. Pre-divider and output divider multiplication ratios are selected using device selection control pins. The multiplication ratios are optimized to support most common clock rates used in PDH, SONET and Ethernet applications. The VCXO requires the use of an external, inexpensive pullable crystal. The VCXO uses external passive loop filter components which allows configuration of the PLL loop bandwidth and damping characteristics. The device is packaged in a space-saving 32-VFQFN package and supports industrial temperature range.

Pin Assignment
• Fourth generation Next Generation NG
technology
• One LVPECL output pair and one LVDS output pair

Each output supports independent frequency selection at 25MHz, 125MHz, 156.25MHz and 312.5MHz
• Two differential inputs support the following input types LVPECL,

LVDS, LVHSTL, SSTL, HCSL
• Accepts input frequencies from 8kHz to 155.52MHz including
8kHz, 1.544MHz, 2.048MHz, 19.44MHz, 25MHz, 77.76MHz, 125MHz and 155.52MHz
• Attenuates the phase jitter of the input clock by using a low-cost
pullable fundamental mode VCXO crystal
• VCXO PLL bandwidth can be optimized for jitter attenuation and
reference tracking using external loop filter connection
• FemtoClock NG frequency multiplier provides low jitter, high
frequency output
• Absolute pull range 100ppm
• FemtoClock NG VCO frequency 625MHz
• RMS phase jitter 125MHz, using a 25MHz crystal
12kHz 20MHz 0.3ps typical
• 3.3V supply voltage
• -40°C to 85°C ambient operating temperature
• Available in lead-free RoHS 6 package

VCCX XTAL_IN XTAL_OUT CLK0 nCLK0 VCC CLK1 nCLK1
32 31 30 29 28 27 26 25

LF1 1
24 VEE

LF0 2
23 nQB

ISET 3
22 QB

VEE 4
21 VCCO

CLK_SEL 5
20 nQA

VCC 6
19 QA

RESERVED 7
Ordering Information
Table Ordering Information

Part/Order Number 813N252AKI-04LF 813N252AKI-04LFT

Marking ICS252AI04L

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

Shipping Packaging Tray
2500 Tape & Reel

Temperature -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 applications. Any other applications, such as those requiring extended temperature ranges, 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.
2011 Integrated Device Technology, Inc.

ICS813N252I-04 Data Sheet

VCXO JITTER ATTENUATOR & NG MULTIPLIER

Page 7

Description of Change

Differential DC Characteristics Table - redefined VCMR min. to standard levels as the crosspoint. Changed from 0.5V min. to VEE. Updated NOTEs. LVPECL DC Characteristics Table - corrected VOH/VOL Parameter verbage from Current to Voltage and corrected units to “V”. Updated “Wiring the Differenti Input to Accept Single-ended Levels”.

Supply Voltage, VCC. Rating changed from 4.5V min. to 3.63V per Errata NEN-11-03.

Date 3/18/10 5/24/11
2011 Integrated Device Technology, Inc.

ICS813N252I-04 Data Sheet

VCXO JITTER ATTENUATOR & NG MULTIPLIER
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.
More datasheets: T530D567M2R5ASE005 | T530D227M010ASE010 | T530X687M004ASE010 | LFB259128-000 | MAX9502MEXK+ | CA3102R24-19S | DDMM-50P | APTM50H15FT1G | IF-850053 | 813N252AKI-04LFT


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 813N252AKI-04LF Datasheet file may be downloaded here without warranties.

Datasheet ID: 813N252AKI-04LF 637073