IDT5T940-10NLGI

IDT5T940-10NLGI Datasheet

IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

Part	Datasheet
IDT5T940-10NLGI	IDT5T940-10NLGI (pdf)

Related Parts	Information
IDT5T940-30NLGI8	IDT5T940-30NLGI8
IDT5T940-30NLGI	IDT5T940-30NLGI
IDT5T940-10NLGI8	IDT5T940-10NLGI8

PDF Datasheet Preview
IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS INDUSTRIAL TEMPERATURE RANGE PRECISION CLOCK GENERATOR OC-192 APPLICATIONS IDT5T940 PRODUCT DISCONTINUATION NOTICE - LAST TIME BUY EXPIRES OCTOBER 28, 2014 FEATURES: • Input frequency - For SONET non-FEC 19.44MHz, 38.88MHz, 77.76MHz, 155.52MHz, 311.04MHz, or 622.08MHz - For SONET FEC 20.83MHz, 41.66MHz, 83.31MHz, 166.63MHz, 333.26MHz, or 666.52MHz - For 10GE copper 19.53MHz, 39.06MHz, 78.125MHz, 156.25MHz, 312.5MHz, or 625MHz - For 10GE optical 20.14MHz, 40.28MHz, 80.56MHz, 161.13MHz, 322.26MHz, or 644.53MHz • 3-level inputs for feedback divide ratio and output frequency range selection • 1x, 2x, 4x, 8x, 16x, and 32x outputs on QOUT • Regenerated input clock or QOUT/4 on QREG • Lock indicator • Power-down mode • LVPECL or LVDS outputs • Three modes of output frequency range - Mode 0 QOUT range - 166.6MHz. QREG is a regenerated version of the input clock. - Mode 1 QOUT range 622 - 666.5MHz. QREG output 155.5-166.6MHz. - Mode 2 QOUT range 622 - 666.5MHz. QREG is a regenerated version of the input clock frequency. • Selectable loop bandwidths • Hitless switchover • Differential LVPECL, LVDS, or single-ended LVTTL input interface • - 3.465V core and I/O • Available in VFQFPN package • use replacement part:8T49N222B-dddNLGI DESCRIPTION: The IDT5T940 generates a high precision FEC Forward Error Correction or non-FEC source clock for SONET/SDH systems as well as a source clock for Gigabit Ethernet systems. This device also has clock regeneration capability it creates a "clean" version of the clock input by using the internal oscillator to square the input clock's rising and falling edges and remove jitter. In the event that the main clock input fails, the device automatically locks to a backup reference clock using a hitless switchover mechanism. This device detects loss of valid CLKIN and leaves the VCO of the PLL at the last valid frequency while an alternate input REFIN is selected. If CLKIN and REFIN are different frequencies, the multiplication factor will be adjusted to retain the same output frequency. The IDT5T940 can act as a translator from a differential LVPECL, LVDS, or single-ended LVTTL input to LVPECL or LVDS outputs. The IDT5T940-10 has LVDS outputs and the IDT5T940-30 has LVPECL outputs. The three modes of output frequency range are controlled by the SELmode, which is a 3-level pin. When SELmode is high or low, the QOUT is a multiplied version of the input clock while QREG is a regenerated version of the input clock. When SELmode is mid, the QOUT is a multiplied version of the input clock while QREG is QOUT/4. The IDT5T940 features a selectable loop bandwidth. APPLICATIONS: • Terabit routers • Gigabit ethernet systems • SONET / SDH systems • Digital cross connects • Optical transceiver modules FUNCTIONAL BLOCK DIAGRAM CLKIN INPUT MUX PLLBW1 PLLBW0 PLL DIVN QREG REFIN LOCK LOCK, FREQ. DETECTOR The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2013 Integrated Device Technology, Inc. CONTROL LOGIC PD SELMODE CLK/ REF0 CLK/ REF1 DIVM QOUT MAY 2013 DSC 6195/27 IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS PIN CONFIGURATION PD VDD GND QOUT GND VDD ORDERING INFORMATION Device Type Package INDUSTRIAL TEMPERATURE RANGE -40ºC to +85ºC Industrial VFQFPN - Green 5T940-10 Precision Clock Generator LVDS Output 5T940-30 Precision Clock Generator LVPECL Output IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS INDUSTRIAL TEMPERATURE RANGE Table Discription of Change NRND - Not Recommended for New Designs Product Discontinuation Notice - Last Time Buy Expires October 28, 2014, PDN# CQ-13-02 Date 5/16/13 11/27/13 IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS INDUSTRIAL TEMPERATURE RANGE We’ve Got Your Timing Solution. 6024 Silver Creek Valley Road San Jose, CA 95138 Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775 Tech 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.

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IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

INDUSTRIAL TEMPERATURE RANGE

PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

IDT5T940

PRODUCT DISCONTINUATION NOTICE - LAST TIME BUY EXPIRES OCTOBER 28, 2014

FEATURES:
• Input frequency - For SONET non-FEC 19.44MHz, 38.88MHz, 77.76MHz, 155.52MHz, 311.04MHz, or 622.08MHz - For SONET FEC 20.83MHz, 41.66MHz, 83.31MHz, 166.63MHz, 333.26MHz, or 666.52MHz - For 10GE copper 19.53MHz, 39.06MHz, 78.125MHz, 156.25MHz, 312.5MHz, or 625MHz - For 10GE optical 20.14MHz, 40.28MHz, 80.56MHz, 161.13MHz, 322.26MHz, or 644.53MHz
• 3-level inputs for feedback divide ratio and output frequency range selection
• 1x, 2x, 4x, 8x, 16x, and 32x outputs on QOUT
• Regenerated input clock or QOUT/4 on QREG
• Lock indicator
• Power-down mode
• LVPECL or LVDS outputs
• Three modes of output frequency range
- Mode 0 QOUT range - 166.6MHz. QREG is a regenerated version of the input clock.
- Mode 1 QOUT range 622 - 666.5MHz. QREG output 155.5-166.6MHz. - Mode 2 QOUT range 622 - 666.5MHz. QREG is a regenerated version
of the input clock frequency.
• Selectable loop bandwidths
• Hitless switchover
• Differential LVPECL, LVDS, or single-ended LVTTL input interface
• - 3.465V core and I/O
• Available in VFQFPN package
• use replacement part:8T49N222B-dddNLGI

DESCRIPTION:

The IDT5T940 generates a high precision FEC Forward Error Correction or non-FEC source clock for SONET/SDH systems as well as a source clock for Gigabit Ethernet systems. This device also has clock regeneration capability it creates a "clean" version of the clock input by using the internal oscillator to square the input clock's rising and falling edges and remove jitter. In the event that the main clock input fails, the device automatically locks to a backup reference clock using a hitless switchover mechanism.

This device detects loss of valid CLKIN and leaves the VCO of the PLL at the last valid frequency while an alternate input REFIN is selected. If CLKIN and REFIN are different frequencies, the multiplication factor will be adjusted to retain the same output frequency.

The IDT5T940 can act as a translator from a differential LVPECL, LVDS, or single-ended LVTTL input to LVPECL or LVDS outputs. The IDT5T940-10 has LVDS outputs and the IDT5T940-30 has LVPECL outputs.

The three modes of output frequency range are controlled by the SELmode, which is a 3-level pin. When SELmode is high or low, the QOUT is a multiplied version of the input clock while QREG is a regenerated version of the input clock. When SELmode is mid, the QOUT is a multiplied version of the input clock while QREG is QOUT/4.

The IDT5T940 features a selectable loop bandwidth.

APPLICATIONS:
• Terabit routers
• Gigabit ethernet systems
• SONET / SDH systems
• Digital cross connects
• Optical transceiver modules

FUNCTIONAL BLOCK DIAGRAM

CLKIN

INPUT MUX

PLLBW1 PLLBW0 PLL

DIVN

QREG

REFIN

LOCK

LOCK, FREQ. DETECTOR

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGE
c 2013 Integrated Device Technology, Inc.

CONTROL LOGIC

PD SELMODE CLK/ REF0 CLK/ REF1

DIVM

QOUT

MAY 2013

DSC 6195/27

IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

PIN CONFIGURATION

PD VDD GND QOUT GND VDD
ORDERING INFORMATION

Device Type Package

INDUSTRIAL TEMPERATURE RANGE
-40ºC to +85ºC Industrial

VFQFPN - Green
5T940-10 Precision Clock Generator LVDS Output 5T940-30 Precision Clock Generator LVPECL Output

IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

INDUSTRIAL TEMPERATURE RANGE

Table

Discription of Change

NRND - Not Recommended for New Designs Product Discontinuation Notice - Last Time Buy Expires October 28, 2014, PDN# CQ-13-02

Date 5/16/13 11/27/13

IDT5T940 PRECISION CLOCK GENERATOR OC-192 APPLICATIONS

INDUSTRIAL TEMPERATURE RANGE

We’ve Got Your Timing Solution.
6024 Silver Creek Valley Road San Jose, CA 95138

Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775

Tech 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 IDT5T940-10NLGI Datasheet file may be downloaded here without warranties.

Datasheet ID: IDT5T940-10NLGI 637282