813N252DKI-02LF

813N252DKI-02LF Datasheet

813N252DI-02

Part	Datasheet
813N252DKI-02LF	813N252DKI-02LF (pdf)

Related Parts	Information
813N252DKI-02LFT	813N252DKI-02LFT

PDF Datasheet Preview
Jitter Attenuator & FemtoClock Multiplier 813N252DI-02 DATA SHEET The 813N252DI-02 device uses IDT's fourth generation NG technology for optimal high clock frequency and low phase noise performance, combined with a low power consumption and high power supply noise rejection. The 813N252DI-02 is a PLL based synchronous multiplier that is optimized for PDH or SONET to Ethernet clock jitter attenuation and frequency translation. The813N252DI-02 is a fully integrated Phase Locked loop utilizing a FemtoClock NG Digital VCXO that provides the low jitter, high frequency SONET/PDH output clock that easily meets OC-48 jitter requirements. This VCXO technology simplifies PLL design by replacing the pullable crystal requirement of analog VCXOs with a fixed 27MHz generator crystal. Jitter attenuation down to 10Hz is provided by an external loop filter. 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 device requires the use of an external, inexpensive fundamental mode 27MHz crystal. The device is packaged in a space-saving 32-VFQFN package and supports industrial temperature range. Pin Assignment VCCX XTAL_IN XTAL_OUT CLK0 nCLK0 VCC CLK1 nCLK1 32 31 30 29 28 27 26 25 LF1 1 • Fourth generation NG technology • Two LVPECL output pairs • 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, HCSL • Accepts input frequencies from 8kHz to 155.52MHz including 8kHz, 1.544MHz, 2.048MHz, 19.44MHz, 25MHz, 77.76MHz, 125MHz and 155.52MHz • Crystal interface optimized for a 27MHz, 10pF parallel resonant crystal • Attenuates the phase jitter of the input clock by using a low-cost fundamental mode crystal • Customized settings for jitter attenuation and reference tracking using an external loop filter connection • FemtoClock NG frequency multiplier provides low jitter, high frequency output • Absolute pull range ±100ppm • Power supply noise rejection PSNR -85dB typical • FemtoClock NG VCXO frequency 2500MHz • RMS phase jitter 156.25MHz, using a 27MHz crystal 12kHz 20MHz 0.6ps typical • RMS phase jitter 125MHz, using a 27MHz crystal 12kHz 20MHz 0.65ps typical • 3.3V supply voltage • -40°C to 85°C ambient operating temperature • Available in lead-free RoHS 6 package LF0 2 23 nQB ISET 3 22 QB VEE 4 CLK_SEL 5 813N252DI-02 Ordering Information Table Ordering Information Part/Order Number Marking 813N252DKI-02LF ICSN52DI02L 813N252DKI-02LFT ICSN52DI02L 813N252DI-02 DATA SHEET Package 32 Lead VFQFN, Lead-Free 32 Lead VFQFN, Lead-Free Shipping Packaging Tray Tape & Reel Temperature -40°C to 85°C -40°C to 85°C JITTER ATTENUATOR & FEMTOCLOCK MULTIPLIER Corporate Headquarters 6024 Silver Creek Valley Road San Jose, CA 95138 USA Sales 1-800-345-7015 or 408-284-8200 Fax 408-284-2775 Tech Support email: 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. Product specification subject to change without notice. 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 2015 Integrated Device Technology, Inc. All rights reserved.

PDF Datasheet Preview

Jitter Attenuator & FemtoClock Multiplier
813N252DI-02

DATA SHEET

The 813N252DI-02 device uses IDT's fourth generation NG technology for optimal high clock frequency and low phase noise performance, combined with a low power consumption and high power supply noise rejection. The 813N252DI-02 is a PLL based synchronous multiplier that is optimized for PDH or SONET to Ethernet clock jitter attenuation and frequency translation.

The813N252DI-02 is a fully integrated Phase Locked loop utilizing a FemtoClock NG Digital VCXO that provides the low jitter, high frequency SONET/PDH output clock that easily meets OC-48 jitter requirements. This VCXO technology simplifies PLL design by replacing the pullable crystal requirement of analog VCXOs with a fixed 27MHz generator crystal. Jitter attenuation down to 10Hz is provided by an external loop filter. 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 device requires the use of an external, inexpensive fundamental mode 27MHz crystal. The device is packaged in a space-saving 32-VFQFN package and supports industrial temperature range.

Pin Assignment

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

LF1 1
• Fourth generation NG technology
• Two LVPECL output pairs
• 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, HCSL
• Accepts input frequencies from 8kHz to 155.52MHz including
8kHz, 1.544MHz, 2.048MHz, 19.44MHz, 25MHz, 77.76MHz, 125MHz and 155.52MHz
• Crystal interface optimized for a 27MHz, 10pF parallel resonant
crystal
• Attenuates the phase jitter of the input clock by using a low-cost
fundamental mode crystal
• Customized settings for jitter attenuation and reference tracking
using an external loop filter connection
• FemtoClock NG frequency multiplier provides low jitter, high
frequency output
• Absolute pull range ±100ppm
• Power supply noise rejection PSNR -85dB typical
• FemtoClock NG VCXO frequency 2500MHz
• RMS phase jitter 156.25MHz, using a 27MHz crystal
12kHz 20MHz 0.6ps typical
• RMS phase jitter 125MHz, using a 27MHz crystal
12kHz 20MHz 0.65ps typical
• 3.3V supply voltage
• -40°C to 85°C ambient operating temperature
• Available in lead-free RoHS 6 package

LF0 2
23 nQB

ISET 3
22 QB

VEE 4 CLK_SEL 5
813N252DI-02
Ordering Information
Table Ordering Information

Part/Order Number

Marking
813N252DKI-02LF

ICSN52DI02L
813N252DKI-02LFT

ICSN52DI02L
813N252DI-02 DATA SHEET

Package 32 Lead VFQFN, Lead-Free 32 Lead VFQFN, Lead-Free

Shipping Packaging Tray

Tape & Reel

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

JITTER ATTENUATOR & FEMTOCLOCK MULTIPLIER

Corporate Headquarters 6024 Silver Creek Valley Road San Jose, CA 95138 USA

Sales 1-800-345-7015 or 408-284-8200 Fax 408-284-2775

Tech Support email:

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. Product specification subject to change without notice. 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 2015 Integrated Device Technology, Inc. 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 813N252DKI-02LF Datasheet file may be downloaded here without warranties.

Datasheet ID: 813N252DKI-02LF 636652